Serious warnings 3 confirmed warnings, and users report 1 more thing. Checked: 400 reviews and the Android app’s code.
From our automated analysis, 26 Oct 2026. Every label links to its evidence in the full report below.
This analysis describes version 4.0.13 of the app (the version number recorded inside the package we inspected), analyzed 2026-10-26 .
The store currently lists version 4.0.13, updated 2026-10-07.
Store screenshots supplied by the developer.
Do you want to keep your mind healthy and active? Looking for the best brain games to improve your logic, memory, and attention span?
Focus is a complete brain training app designed by experts to boost your cognitive skills. Whether you want to improve your IQ, prevent cognitive decline, or just have fun with smart logic puzzles, we have the perfect daily workout for you.
Join thousands of users in the ultimate gym for the brain.
🧠 COMPLETE MIND TRAINING IN 4 AREAS
Focus is not just about memory games for adults. We offer over 25 different exercises categorized to train specific areas of your brain:
Logic & Reasoning: Solve IQ puzzles, find patterns, and boost your problem-solving skills. Perfect for those who love mind focusing games.
Memory Games: Train your short-term and visual memory. Our memory games for seniors are designed to help keep your mind sharp and active.…
From the developer’s store description.
For developers and the curious
The evidence, sources, measurements and versions behind every label above.
Findings that met the published evidence standard.
Bundles 16 distinct ad networks / mediation SDKs: Amazon Publisher Services, AppLovin MAX, BidMachine, Chartboost and 12 more
The package embeds several distinct advertising or mediation SDKs — a stack built for ad volume, not for a single house ad.
Package artefact
Appworthy
sha256:4b4b3332fcf7a70549b7d3129ef2677f63228132f93897e7c4c6f6e5545e378cPaywall is server-configured and A/B tested via Adapty — the offer shown can differ per user
The app ships a remote paywall-experimentation SDK, so the offer shown is configured server-side and may differ per user — including from anything we or a reviewer saw.
Package artefact
sha256:4b4b3332fcf7a70549b7d3129ef2677f63228132f93897e7c4c6f6e5545e378cAggressive ad load: raised by 9 distinct reviewers (about 1 in 44 reviews we read)
Advertising volume or placement that interrupts normal use: ads between every action, unskippable or forced full-screen ads.
Specific evidence of a useful property, within the stated scope.
The developer's store data-safety disclosure states that data deletion can be requested; we have not seen a deletion control in the app's own text
The developer's data-safety disclosure on the store states that users can request deletion of their data, or the app's own text offers a way to delete the account. This restates what the developer declares; it is not a test of whether deletion works. Apple publishes no equivalent disclosure, so on an Apple-only listing only the app's own text can support it.
Open observations that have not cleared the evidence bar.
Sells a subscription in-app but ships no cancel or manage-subscription text of its own, leaving the store's settings as the only exit
This observation has not cleared the required evidence standard.
Cancelling the subscription is blocked, hidden, multi-step, or simply does not take effect.
Package artefact
sha256:4b4b3332fcf7a70549b7d3129ef2677f63228132f93897e7c4c6f6e5545e378cPaywall blocks the basics: raised by 5 distinct reviewers (about 1 in 80 reviews we read)
This observation has not cleared the required evidence standard.
The core of the app — not extras — sits behind payment, or previously-free function moved behind a paywall.
Offers a free trial ("Free Trial:") with no renewal price, renewal date or auto-renew notice anywhere in the app's own text
This observation has not cleared the required evidence standard.
The app's own screens offer a free trial without stating, beside it, what happens when the trial ends. Read this as context rather than as a charge: renewal terms are normally shown on the store's purchase sheet instead, which we cannot see, and we can only observe one kind of evidence for this — so it is shown, but never counted as a charge.
Package artefact
sha256:4b4b3332fcf7a70549b7d3129ef2677f63228132f93897e7c4c6f6e5545e378c400 reviews read for this analysis. Each observation keeps the sample and store it was based on.
worst application ever! too many ads. In order to play the game you must watch 4 ads that each last 10 minutes is just was complete waste of time. I do not recommend it
too many ads
Great game, but sooo many adverts. Am thinking about paying as a lot of variety
Just downloaded this app and did the tutorial. Used to play this everyday on another device, loved it so much. Everything was free, pro only included a few premium stuff. But now, everything is locked behind pro! The subscriptions are…
Greedy destroyed this app. Back then all the games was free and trains your focus faster and easy and now it needs premium or "pro" just to play the games what happened to you bro you fell off
i played it a lot a year ago now that I'm here again there is bo game without the pro version every game is behind paywall I'm trying not to swear.
A sampled review illustrates one person’s experience. It does not establish a finding on its own.
“Not assessed” means we could not measure it. It is never a zero and never a pass.
Android package 4.0.13, scanned 26 Oct 2026. These describe that package, not the current store version.
Supporting measurements: not a complete list of possible harms or positives. Measurement vocabulary 1.4 · how these are measured
This analysis describes version 4.0.13 of the app (the version number recorded inside the package we inspected), analyzed 2026-10-26 .
The store currently lists version 4.0.13, updated 2026-10-07.
Each store’s release notes, as the developer wrote them. They are the developer’s words, not ours.
No release notes were provided for this version.
focusAssessed 2026-10-26 from 400 user reviews and the app's package.
What the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.
This assessment is produced automatically. Four independent signals are read — user reviews, SDKs in the app package, the app's own on-screen text and the app manifest — and each candidate finding is filed under the sources that support it.
No charge stands on one kind of evidence — with one published exception. A finding is either a measured fact that anyone can reproduce (an ad SDK is in the package; every subscription bills weekly; the privacy label omits a tracker we can see), or it is an interpretation — and an interpretation needs independent sources to agree before it reaches the catch list. The exception is a harm only users can see: a charge may publish from reviews alone, as “Reported by N users”, once enough reviewers raise it to clear that charge’s own published bar. That agreement rule is what replaced the human reviewer, not a model’s confidence.
There is no overall score, on purpose. A 0–99 number was published here until 2026-09-15. It was withdrawn because it discriminated too weakly to be the instrument — 44.7% of every pair of apps tied — and because a single number is a verdict where a count is an observation. What publishes instead is a row of measurements, each of which says what was counted and, where we could not look, says that instead.
Findings under One source only are real reports we do not stand behind as findings. They are shown because withholding them entirely would hide a genuine complaint, and labelled because publishing them as charges would be an accusation off a single source.
Write to [email protected], or use the form. Name the finding, the app version and the evidence that needs correcting. Factual corrections are free and never depend on buying anything.