Mines casino game Australia 2026: the grid, the offers, and the regulator’s tally

A Mines casino game in Australia, run for real money online, sits inside a market the Australian Communications and Media Authority (ACMA) has spent the best part of a decade trying to shut. The game itself is the easy part: a fixed grid of tiles hides a small number of mines, every safe tile a player flips raises a running multiplier, and the round ends the moment a mine is uncovered or the player chooses to bank. The harder part is everything around it. No Australian licence covers an online casino game of this type, the operators that run them are mostly offshore, and the ACMA has now directed Australian internet service providers to block well over a thousand such sites since November 2019. This page is the long answer to the question the search bar usually asks in three words: what is Mines, who is offering it to Australians, and what has the regulator actually done about it.

Currency values are current as of 29 October 2026 and were checked against ACMA formal-warning publications and the public register of the ACMA.

The Mines grid and the running multiplier

The casino version of Mines is a staked adaptation of the tile-revealing puzzle most people first encountered as Minesweeper. A grid is laid out — most commonly a five-by-five board — and the operator’s software places a fixed number of mines on it before any click is made. The player chooses how many mines to hide, places a stake, and starts revealing tiles one at a time. Each safe tile raised lifts a multiplier printed on the screen; the multiplier at any point is the payout the player will receive if they cash out right now, expressed as a multiple of the stake. A round ends either when the player presses the cash-out button or when the next tile is a mine, in which case the stake is forfeit.

The shape of the paytable is the point of the game. Adding mines raises the multiplier on every safe reveal but reduces the number of safe tiles; removing mines does the opposite. A round with one mine on a five-by-five grid has 24 safe tiles and a low starting multiplier; a round with twenty mines has only five safe tiles and a much steeper curve. The exact numbers are set by the game provider and the operator, and the player sees them on screen before any stake is committed. The win condition is not to clear the grid — clearing all the safe tiles pays out the same stake-plus-multiplier as cashing out on the last safe tile before a mine — but to pick the moment when the multiplier is worth more than the chance of stepping on a mine next.

This is what separates Mines from a slot. A slot machine is one wager and one outcome determined in advance by a random number generator; Mines is a sequence of micro-decisions the player runs themselves. The randomness is the placement of the mines at the start of the round, not the order of the tiles the player picks — every safe tile revealed reduces the number of unknown tiles left, and the player knows exactly what the next click is worth at every step. The decision is when to stop, and the only honest framing of the game is that the expected loss on every round is the stake multiplied by the house edge baked into the multiplier curve.

The studio behind the most widely licensed version of Mines is Spribe, an Estonian-registered supplier founded in 2018 and best known for its flagship crash-style game Aviator. Spribe’s UK Gambling Software Remote licence has been on the public register since 8 December 2020; a separate Game Host (Casino) Remote licence application was shown as in progress at the register’s current listing. On 30 October 2025 the UK Gambling Commission suspended Spribe OÜ’s UK remote gambling software licence on grounds of suitability, having found the company was hosting casino games without the separate remote casino game host licence its business model required. The licence status on the UK register is the public, citable record; for a game in the Australian market, it is background.

Licenced Mines, illegal Mines, and the IGA line

Australia’s line on online casino games is one sentence long, and the IGA draws it: the Interactive Gambling Act 2001, strengthened by the Interactive Gambling Amendment Act 2017, makes it an offence to provide online casino games, online pokies or in-play betting to a person physically in Australia. No state or territory in Australia licenses any of those products. What is licensable is wagering on races and sporting events placed before the event, lotteries and keno — in practice licensed by the Northern Territory Racing and Wagering Commission, the regulator that covers 52 of Australia’s online bookmakers, including the well-known Sportsbet, Bet365 and Ladbrokes accounts. The NTRWC is the de facto online wagering regulator of the country; it has no full-time staff and meets once a month in Darwin.

This matters for Mines specifically because Mines is, in legal terms, an online casino game. The game itself does not matter — slots, table games, dice, instant-win products and grid games all sit under the same prohibition. The line that separates the lawful product from the unlawful one is not the name of the game; it is whether the provider is licensed to supply it to an Australian resident, and none of them are. The Interactive Gambling Amendment (Gambling Reform) Bill 2026 passed Parliament on 19 August 2026; its advertising and inducement measures commence 1 January 2027 — law with a start date, not yet in force on a 2026 page.

What this means for a person searching for a Mines casino game in Australia in 2026 is straightforward: every real-money Mines site that accepts an Australian player is doing so on the wrong side of the IGA. The site may display a Curaçao sub-licence or an Anjouan licence at the foot of its homepage; that licence covers the operator’s right to run the game from its own jurisdiction, it does not cover offering that game to an Australian. The minimum age is 18 across all states and territories; the prohibition on the operator side does not change that.

The ACMA’s blocking tally and how fast it grew

The ACMA’s enforcement tools are investigation, formal warning, and direction to Australian internet service providers to block illegal services at the network layer. The number that captures the first six and a half years of that work is the running total of blocks: 1,751 illegal gambling and affiliate marketing websites had been blocked since the first blocking request in November 2019, according to the ACMA as reported in June 2026. The first blocking request in November 2019 was a single direction; the running total by June 2026 is 1,751 sites blocked over roughly six years and seven months. Divided across that span, the pace works out to somewhere in the order of 260 blocked sites a year on average, or about 22 a month — though the monthly rate has been far from flat, with several individual rounds covering a dozen or more sites in a single week.

A useful way to read that pace is to mark the milestone dates. November 2019 was the first blocking request — the start of the regime. Enforcement was strengthened in 2017 and the first years of blocking ran alongside voluntary exits, with more than 230 unlicensed gambling services having left the Australian market since 2017. The 1,000-block mark was passed during 2023. By the round reported on 26 June 2026, the cumulative count stood at 1,751 sites blocked, with the latest round alone covering twelve names: 7Signs, ChromaBet, Donbet, Duospin, Freshbet, Slots Gem, Jacks Club, Lucky Start, Pointsbetz, Spinrise, Vinyl Casino and Wildsino. The figure is a single cumulative number from a single regulator; the band that follows from dividing it across the period is the calculation the page makes its own.

That calculation is the page’s takeaway on this shelf, and the honest way to state it is as a band, not a single number. The 1,751 figure is the running total at one reporting date; the first blocking request was in November 2019; the months between are roughly 79. Across 79 months, the average works out to about 22 blocked sites a month, but that average hides a regime that started slowly, accelerated through 2022 and 2023, and has run at a higher pace since. A reasonable way to put it is: roughly 20 to 25 sites a month on the long-run average, with individual rounds sometimes removing a dozen in a single week. Anyone who treats the monthly figure as a constant is missing how front-loaded the curve has been; anyone who treats any single recent round as the new normal is missing how front-loaded the early years were. The band — not the point — is the honest description.

What the tally does not say is which of those 1,751 sites offered Mines specifically. The ACMA blocks illegal gambling services as a category, not by game. A Mines site is treated the same as any other online casino site for the purposes of the IGA and the same for blocking purposes. The proportion of the 1,751 that were running Mines-style games is not published, and the page does not invent a number for it.

What the ACMA has actually done to the operators in this comparison

The ACMA’s other public tool is the formal warning. Where a block is a network-level direction to ISPs, a formal warning is a written notice to the operator behind a site, identifying the conduct the ACMA considers to breach the IGA and putting the operator on notice that further enforcement steps may follow. A formal warning is not a prosecution; the IGA targets the provider, not the individual player. A formal warning does, however, name the operator publicly and date the warning, and a long enough record of them gives a picture of which groups the regulator has been pushing hardest.

The eleven operators compared below are not a recommended list of places to play. They are the operators the ACMA itself has named in formal warnings, in the order they appear in the ACMA’s published record; each one has been the subject of at least one warning over offering prohibited services to Australians. The table that follows is built from the ACMA’s own publications; the prose around it is the page’s reading of what those publications show.

A few things in that table are worth pulling out before the operator notes that follow it.

The first is that several operators are owned by the same parent groups, and the ACMA’s enforcement pattern shows it. Dama N.V. is the named operator on four of the eleven brands — Level Up, Woo, Spirit and (under an earlier warning) RocketPlay — and was warned in 2022 over six brands at once, then again in 2025 over two of them. Consolutetish S.R.L. took warnings in 2025 over both National Casino and Bizzo Casino, where Bizzo had already been warned in 2022 under a different parent (TechSolutions). The pattern is one parent, multiple brands, multiple warnings over time: a group that loses one Australian-facing brand to enforcement and reappears under a new one.

The second is the timing. The earliest formal warning in the table is the 2022 Dama N.V. warning covering six brands; the most recent is the April 2026 warning to Ryker B.V. over Jackbit and CasinOK. The distribution of warnings over those four years is not even — most were issued in 2025 — which fits the same pattern the blocking totals show: enforcement accelerated through 2023 and 2024 and continues into 2026.

The third is what the table does not claim. A formal warning does not mean a brand is currently being blocked at the ISP level, though many of the brands in the table have appeared in earlier blocking rounds. A formal warning does not mean the operator has shut its Australian-facing site; some continue to operate, geo-blocked to Australia in varying degrees. The honest reading is that the ACMA has put each of these operators on the record as offering prohibited services to Australians, and that is the only claim the table makes.

The fourth is what the “Subject support” column actually says. For most brands there is no public listing tying them to the Mines game specifically; for Level Up Casino, the Bgaming.com catalogue lists the brand; for National Casino, Wikipedia’s article on Mines lists it among casinos that have distributed the game; for Casino Intense, three reference sources cover it in an Australian context. For the rest, the column is a dash because there is no public listing to cite, and a brand without such a listing is not the same as a brand that has been confirmed not to offer Mines.

RocketPlay

The ACMA’s most recent formal warning over RocketPlay was issued in March 2026 to Pulsup Ltd, the operator behind RocketPlay. That warning came on top of an earlier May 2022 warning issued to Dama N.V., which at that point covered RocketPlay alongside five sister brands (Bambet, Dazard, Level Up, Wild Tornado and Cobra Casinos). Two warnings to two different operators over the same brand is the cleanest illustration of the parent-group rotation pattern described above: when Dama N.V. stopped operating the Australian-facing RocketPlay, Pulsup Ltd took over, and the ACMA’s record caught up with the new operator within months. For an Australian player, the practical reading is that the brand has been on the regulator’s radar continuously for four years and across two legal entities.

Level Up Casino

Level Up was named in the May 2022 Dama N.V. warning, one of six brands covered by the same notice. It is the only brand on the list for which research found a public catalogue entry tying the brand to the Mines game specifically, via Bgaming. The honest statement is that Bgaming’s listings include Level Up Casino as a stockist, and that is what research carries. A brand on a supplier’s catalogue and a brand on the ACMA’s warning list are two different records of the same brand, and both are real.

Woo Casino

Woo Casino was named in the ACMA’s March 2025 formal warning to Dama N.V. The fact that Dama N.V. received a fresh warning in 2025 over Woo and again in May 2025 over Spirit Casino — six months apart, two of the six 2022 brands resurfacing — is the kind of evidence the page should treat as the regulator’s record rather than as a single operator’s misconduct. The same operator, different brands, multiple warnings; the pattern is what the ACMA has chosen to publish about.

Spirit Casino

Spirit Casino sits alongside Woo Casino in the May 2025 Dama N.V. warning record. Spirit is a newer brand than Level Up or Woo, and the fact that it has been named in a warning within roughly a year of its public launch is the more pointed version of the parent-group pattern: not just a re-emergence but an emergence that the regulator caught before the brand could establish a long public track record in Australia.

National Casino

National Casino was the subject of a July 2025 formal warning to Consolutetish S.R.L. Wikipedia’s article on Mines lists National Casino among the casinos that have distributed the game, which is the strongest public record of subject support among the eleven operators on this page. The combination — a July 2025 warning and a public catalogue-style listing — is a useful test case: the regulator and the encyclopaedia have separately recorded the brand’s involvement with Mines, and the two records line up.

Bizzo Casino

Bizzo Casino was named in the July 2025 Consolutetish S.R.L. warning alongside National Casino, but the brand’s ACMA file is older than that: a 2022 formal warning over Bizzo went to TechSolutions (CY) Group Limited and TechSolutions Group N.V. Two warnings, two parents, the same brand. The 2022 to 2025 gap also shows what an enforcement pause looks like in practice: a brand warned in 2022, not warned again until 2025, but warned again under a different operator name when the ACMA caught up with the new structure.

Ignition Casino

Ignition Casino was named in the July 2025 formal warning to Bamboo Media. Ignition is one of the better-known offshore casino brands in the Australian market by reputation, and the ACMA’s warning record over it is recent rather than old — the first formal warning on the brand in the ACMA’s public record is the 2025 Bamboo Media notice. The honest statement is that the ACMA has now put Bamboo Media on the record over Ignition, and the brand’s Australian-facing presence has continued to be visible to Australian players in the time between the warning’s publication and the page’s writing.

Instant Casino

Instant Casino was named in the February 2025 formal warning to EOD Code SRL. The brand had not appeared in the ACMA’s earlier warning batches and surfaced under EOD Code SRL in early 2025. The ACMA’s record of formal warnings is the page’s only source of facts about who runs Instant Casino for Australian players, and the regulator’s own naming of EOD Code SRL is the version of that fact the page carries.

Jackbit

Jackbit was named in the April 2026 formal warning to Ryker B.V., alongside CasinOK under the same notice. The combination is the cleanest example on this page of the ACMA naming two brands under one operator on one warning: a single letter, two websites. For the reader, the implication is that the operator-group level, not the brand level, is often where enforcement bites; the brand that replaces the brand after the warning does not need to be the brand that disappears.

Casino Intense

Casino Intense was named in the April 2025 formal warning to Sterplay Holding Ltd. The reference coverage for this brand in an Australian context is the broadest of the eleven: Abc.net.au, the ACMA itself and Crownmelbourne.com.au all carry the name in an Australian frame. That is not the same as a regulatory licence — none of these three sources licenses Casino Intense — but it is a useful indicator that the brand has been covered in Australian-facing reporting and reference material.

Sky Crown

Sky Crown was named in the ACMA’s formal warning to Hollycorn N.V. alongside Blue Leo, in the warning published in PDF form in September 2022. The Hollycorn warning is one of the older entries in the table; the fact that the brand has not appeared in a fresher formal warning under a different operator name does not mean the operator has left. The honest reading is that Hollycorn N.V. is the only operator the ACMA has publicly named over Sky Crown, and the page does not have a record of a successor warning.

BetStop, the Helpline, and what player protection looks like offshore

The IGA’s prohibition targets the provider. The individual player is not prosecuted, but an offshore casino gives no Australian consumer protection, no Australian complaints body and no recourse if a withdrawal is refused. A site can be blocked with a balance still on it; the ACMA’s blocking tool is a network-level direction, not a refund mechanism. The Australian protective infrastructure that does exist is built for the licensed wagering market and stops at its edge.

BetStop, the National Self-Exclusion Register, has been live since August 2023. It binds Australian-licensed online and phone wagering services — the bookmakers licensed by the NTRWC and their equivalents in other states and territories. An offshore casino is not connected to BetStop. A person who has registered with BetStop and then opens an account with an offshore Mines site is not protected by BetStop on that account. The same point holds the other direction: a person who has excluded themselves from an offshore casino has no parallel self-exclusion that the regulator will enforce against the next offshore brand the operator launches.

The National Gambling Helpline is 1800 858 858, free, twenty-four hours a day, with chat at Gambling Help Online. The Helpline is the entry point for anyone whose gambling has become a problem and wants to talk to a counsellor in Australia. The page states it where it belongs: in the section on what to do when the offshore infrastructure cannot help.

The payments picture for an Australian player

The Australian rules on payment methods are aimed at the licensed wagering market, and they bite from 11 June 2024: credit cards, credit-related products and digital currency are banned as payment for licensed online wagering. Penalties for licensed operators who break the rule run up to A$247,500. Legal deposit routes for a licensed Australian wagering account are debit card, bank transfer, PayID/Osko and BPAY. A site asking an Australian for a credit card or a crypto deposit is operating outside the Australian rules — and an unlicensed operator offering Mines to an Australian is outside the Australian rules on payment as a consequence of being outside them on the product itself. The payment-method profile is a useful diagnostic: a site that takes credit cards or crypto and offers Mines is by that combination not running under Australian rules.

The losses number that sits behind all of this is H2 Gambling Capital’s 2025 estimate that Australians lose about A$3.9 billion a year to illegal gambling sites, and that the share of gambling going through legal channels fell from 74% in 2021 to 64%. The 2021 to 2025 fall in the legal share is one of the more pointed single figures on this page: the legal market shrank as a proportion of the whole while the dollar value of the illegal market grew.

Bonuses, promo codes and what an offer actually clears

A Mines no-deposit bonus — the kind of offer that turns up on affiliate pages under headings like “slots mines no deposit bonus” or “slot mines casino no deposit bonus” — runs through the same review process as any other bonus before real money can be withdrawn. The relevant facts are the bonus’s wagering multiple, the maximum cashout cap, the list of eligible games and the time limit. None of those figures are stated in research for any of the operators compared on this page; the only sources for them are the affiliate marketing pages themselves, and the page does not carry a figure it cannot cite.

The honest framing for an offer of this kind is qualitative. A no-deposit bonus is a small stake funded by the operator rather than the player; the wagering multiple on such offers is generally higher than on deposit-gated welcome packages, the maximum cashout cap is often low enough to make the offer modest in absolute terms, and Mines is usually eligible only at a constrained weighting. A reader who sees a “Mines no-deposit bonus” advertised and wants to know what it is really worth should read the wagering terms and the maximum cashout cap before anything else; the marketing headline is the part of the offer least worth reading.

The same shape holds for promo codes and bonus codes advertised using search terms like slots mines promo code, slots mines bonus code and slots mines bonus. A code is a delivery mechanism; the offer behind it carries the same terms it would carry without the code. The page does not name a code, because codes change and the page’s sources do not carry them.

What the comparison actually shows

Reading the table above as the ACMA’s record, the patterns are these. Dama N.V. appears as the named operator on four of the eleven brands, including one of the most recent RocketPlay warnings. Consolutetish S.R.L. appears as the named operator on two of the eleven, both warned in July 2025, with one of the two also warned three years earlier under a different parent. The other six operators appear once each. The distribution of warnings over time is back-loaded into 2025 and 2026; only one warning in the table predates 2025 and that is the 2022 Dama N.V. batch of six, and the 2022 TechSolutions warning over Bizzo. The remaining nine warnings were issued between February 2025 and April 2026.

The cumulative count of blocked sites tells the same story at the network level. The first blocking request was November 2019; the cumulative count reached 1,751 by June 2026. The 2022 warnings and the early 2025 warnings coincided with the middle of the curve; the 2025-to-2026 warnings coincide with the steepest section. The blocking tally and the formal-warning tally are two views of the same campaign, and they are pointing in the same direction.

What the comparison does not show is the rank order of these brands by player experience, payout speed, RTP on Mines, or any other measure that an ordinary review page would compare them on. The IGA treats Mines as a prohibited product across all of them; the ACMA’s record treats them as a single category of offender with different names; the page treats them as a single category with different published records of ACMA action.

What a stop point looks like, mechanically

The tile-by-tile format of Mines rewards deciding a stop point before play starts, rather than after a run of safe tiles feels lucky. This is the responsible-gaming point of the game’s design, and it is the one place where the structure of Mines itself pushes back against the marketing framing. The marketing framing is about the multiplier: how high it can go, how fast, what the last safe tile paid out. The mechanics are about when the next click is no longer worth the stake. The two framings describe the same game and they point in opposite directions.

A useful way to set a stop point is to pick, before the round starts, the multiplier at which the round will be banked. The multiplier is visible on screen from the first click onward; cashing out at that multiplier, regardless of how the next tile looks, is the mechanical version of a pre-commitment. A stop point set after a run of safe tiles is a stop point set under the influence of the same multiplier curve the marketing is trying to sell, and the page treats it as a less reliable one. A stop point set in advance, against a fixed multiplier, is the only honest stop point a Mines round has.

What this page is not for

This page is not a recommendation of any of the operators compared below. The IGA prohibits the supply of online casino games to Australian residents; the ACMA’s blocking and formal-warning record names the operators who have supplied them; the page’s job is to lay out that record. It is not a comparison of payout speeds, game libraries or bonus terms, because the only sources for those comparisons are the operators’ own marketing and the affiliate pages that promote them, and the page does not cite figures whose only source is the operator being described.

This page is also not a guide to circumventing the block. The ACMA’s blocking directions work at the Australian ISP level; the running total of 1,751 is the number of sites the ACMA has directed Australian ISPs to remove from Australian routing. The 12-site round reported on 26 June 2026 is one example of how those directions work. The pace figure — a band of roughly 20 to 25 sites a month on the long-run average — is the description of how the curve has run, not a forecast of which brand will be next.

What an Australian player who wants to play Mines online actually faces

The honest summary, with the marketing words in the sentence they came from: a Mines casino game in Australia, run for real money online by any of the eleven operators compared above, is offered in breach of Australian law. The site may call its offer a “no-deposit bonus” or a “promo code” or a “Mines app” — those are marketing words; the offer is, in the ACMA’s record, a prohibited service. The site may display a Curaçao or Anjouan licence at the foot of its homepage; that licence covers the operator’s right to run the game from its own jurisdiction, it does not cover offering that game to a person in Australia. The site’s withdrawal terms may be published; if the operator refuses a withdrawal, the player has no Australian complaints body to take it to, no BetStop record to enforce a self-exclusion against, and no Australian regulator to compel a payout. The ACMA’s blocking tool can remove the site from Australian routing while a balance is still on it.

The legal alternatives — licensed wagering on races and sport, lotteries and keno — do not include Mines or any other online casino game. The illegal alternatives are the eleven operators compared above and the 1,740+ other sites the ACMA has blocked since 2019. The page’s job is to make the second list legible, and to state what the list means.

Where to get help

The National Gambling Helpline is 1800 858 858, free, twenty-four hours a day. Chat support is available at Gambling Help Online. BetStop, the National Self-Exclusion Register, has been live since August 2023 and binds every Australian-licensed online and phone wagering service; an offshore casino is not connected to BetStop, and self-exclusion through BetStop does not extend to offshore brands. The line that an offshore brand cannot offer is the line that BetStop is built to enforce; readers who want that line enforced are readers who want to be playing with an Australian-licensed operator.

Mines casino game Australia: the page’s bottom line

The Mines game is a fixed-grid tile-revealing format in which a running multiplier rises with each safe tile and the round ends on a mine or a cash-out; the legal version of that game for an Australian resident is the licensed wagering market, which does not include Mines. The ACMA has directed Australian ISPs to block 1,751 illegal gambling and affiliate sites since November 2019, at an average pace somewhere in the order of 20 to 25 a month, with individual rounds sometimes removing a dozen in a week. The eleven operators compared on this page are the operators the ACMA has named in formal warnings under the Interactive Gambling Act 2001, in the order they appear in the ACMA’s own published record. The Australian losses to illegal gambling sites are estimated at A$3.9 billion a year; the legal share of the gambling market fell from 74% in 2021 to 64% in 2025. The page’s position is that an Australian who wants to play Mines online for real money is, in 2026, choosing between the licensed market that does not offer Mines and the unlicensed market that does — and that the ACMA’s record of the second market is the record this page is built to lay out.

Frequently asked questions about Mines as a casino game in Australia

Is it legal to play the Mines casino game for real money in Australia?

No. The Interactive Gambling Act 2001, strengthened by the Interactive Gambling Amendment Act 2017, prohibits the supply of online casino games — including Mines — to a person in Australia. The individual player is not prosecuted, but every real-money Mines site that accepts an Australian player is doing so in breach of the IGA. The ACMA enforces against the provider, not the player, and the provider in this market is almost always an offshore operator.

How does the payout on Mines increase as more safe tiles are revealed?

Each safe tile raised increases a multiplier shown on screen; the multiplier at any point is the payout, expressed as a multiple of the stake, the player will receive if they cash out right now. The exact multiplier at each step is set by the game provider and the operator and is visible before the round starts. Cashing out on the last safe tile before a mine pays the same as clearing the grid; the only difference is the chance of stepping on the next mine.

What determines how many hidden mines are placed on a Mines grid?

The player does, before the round starts. Choosing more mines raises the multiplier on every safe reveal but reduces the number of safe tiles on the grid; choosing fewer mines does the opposite. A five-by-five grid with one mine has 24 safe tiles and a low starting multiplier; a five-by-five grid with twenty mines has five safe tiles and a much steeper curve.

What conditions usually apply before a Mines no-deposit bonus can be withdrawn?

A no-deposit bonus is a stake funded by the operator rather than the player, and the conditions that govern when the resulting balance becomes withdrawable are the wagering multiple, the maximum cashout cap, the list of eligible games and the time limit. Research for this page carries no figures for those terms for any specific operator; the affiliate marketing pages that advertise the offers are the only public source for them, and the page does not cite figures whose only source is the operator being described.

Is the Mines app a separate product from the browser-based version of the game?

No. The Mines app offered by most operators is the same game running through a mobile wrapper — the same grid, the same multiplier curve, the same RNG placing the mines at the start of each round. The app is a delivery format, not a different product; an app that accepts a real-money stake from an Australian player is offering the same prohibited service as the browser version.

What is a sensible way to decide a stop point before starting a round of Mines?

Pick the multiplier at which the round will be banked before the first tile is revealed, and bank at that multiplier regardless of how the next tile looks. A stop point chosen after a run of safe tiles is a stop point chosen under the influence of the same multiplier curve the marketing is selling, and is less reliable as a commitment than one chosen in advance. The mechanics of Mines reward pre-commitment and they reward it more strongly the longer the run of safe tiles gets.