Verdict up front: ClubMining IO holds 4.4 stars from 12,800 reviews. Two of its own reviewers describe the same thing: the app rewards you with mining power for posting a Google Play review. If the rating is bought, the rating is not evidence — and it is the only evidence most people check.
Cloud Mining Bitcoin Crypto is published by ClubMining IO. On the day we checked it showed 4.4 stars from 12,800 reviews and 100,000+ downloads. It is filed under Finance. It was last updated on 15 August 2025 — more than a year ago.
Paid for the review
Amber Nekhol, 15 August 2026, describing the process while going through it:
A user’s account
“Good so far, I’ll come back after cashout and rate higher if it works… it has been 2 days and still no credit for writing the review, so no progress towards the free miner with that.… wish there were better options for ‘free’ since writing this Google review didn’t credit anything.”
John Archer, 21 August 2026, independently:
“Just found a glitch in the reward system. When I clicked to get my reward for posting a comment I was directed to install the app again.”
Two unconnected users, six days apart, both describing an in-app task that pays mining power in exchange for a Play Store review. Neither is complaining about the offer. They are complaining that the reward did not arrive.
What that does to the number
Incentivising reviews is prohibited by Google Play’s own policies, for the obvious reason: a rating is only useful if it reflects what people thought, not what they were paid to say.
Now apply it to 12,800 reviews. You cannot know which are honest, but you know the population is contaminated and you know the direction of the contamination — nobody is rewarded for a one-star review. A 4.4 built partly from purchased ratings tells you about the incentive scheme, not the app.
And this is the figure that sells the app. A person deciding whether to hand over money looks at the stars and the review count. Both have been manufactured in part by the operator.
The free tier is the hook
The listing is explicit about the shape of it: “Activate your worker with 1 TH/s free or purchase additional mining power”, alongside promises of “no hidden fees” and “24/7 access to your wallet”.
Free hashrate, then reviews for more hashrate, then adverts for more hashrate, then purchases. The user is walked up a ladder where each rung costs slightly more than the last, and the first few rungs cost only their credibility.
Fezile Matlakala’s review — the most endorsed on the page, with 86 marking it helpful — sits at the top of that ladder: “purchased a couple of packages and a premium upgrade… returns are good… watching ads will give you a bonus miner but it does take a while to get it each cycle.”
The store badges do not mention any of it
Here is a detail worth checking yourself. Under the developer name on this listing there is no “Contains ads” badge and no “In-app purchases” badge — nothing at all.
Yet the reviews describe adverts, packages, premium upgrades and a bonus-miner cycle. Whatever the reason for the gap, a shopper filtering the store for apps that do not charge and do not advertise would see this one pass both filters.
Abandoned, but still taking money
The last update was 15 August 2025. The reviews from August 2026 describe a broken reward system, a login that does not persist and a reinstall loop. Nobody has shipped a fix in over a year.
An app that is no longer maintained but still accepts payments is not a service in decline. It is a position being held open.
And, again, the data panel
Data safety declares “No data shared with third parties” and “No data collected” — with no encryption statement listed at all. This is a Finance app that takes payments, holds a balance and promises wallet access. Those declarations cannot all be accurate.
- If an app pays you to review it, the star rating is advertising. Discount it entirely.
- Check the last-updated date. A year of silence beside recent bug reports means nobody is home.
- Look for the ads and in-app-purchase badges, then read the reviews to see whether they match.
- Report incentivised reviews to Google with the “Flag as inappropriate” link on the listing. It is the only lever users have.
- A free tier is a customer-acquisition cost, not generosity.
If you have bought packages in an app like this
Request a refund through Google Play while the purchases are recent, and check the Subscriptions screen for anything recurring. Do not buy another package to reach a payout. Screenshot your balance, purchase history and withdrawal screen before anything changes, and report it at IC3.gov. If you posted a review in exchange for a reward, you can edit or delete it — it costs you nothing and it takes one manufactured rating back out of the number.
