BrainGain - Brain Training

Boost your brain with brain training games and logic games 🧠 Swap mindless…

AIBY Inc.
Google Play rating4.6★8.1K ratings
PriceFreeIn-app purchases
Age4+Store age rating
CategoryEducation
DeveloperAIBY Inc.

What we found

Full report

Serious warnings 2 confirmed warnings. Checked: 210 reviews, the Android app’s code, the store listing and the privacy label.

Money

Ads

From our automated analysis, 30 Oct 2026. Every label links to its evidence in the full report below.

This analysis describes version 1.19.223 of the app (the version number recorded inside the package we inspected), analyzed 2026-10-30 .

The store currently lists version 1.19.223, updated 2026-09-24.

Preview

Screenshot 1Screenshot 2Screenshot 3Screenshot 4Screenshot 5Screenshot 6Screenshot 7Screenshot 8

Store screenshots supplied by the developer.

About this app

Boost your brain with brain training games and logic games 🧠

Swap mindless scrolling for this fun brain training game app. Meet Brain Gain—your brain fitness coach filled with brain games for adults, memory games, thinking games, problem-solving games, logic games, and math games, all focused on keeping your mind sharp.

TRAIN SMARTER & PLAY BETTER 🏆

Brain Gain adapts to your energy and skill level. All brain training games and problem-solving games challenge you just enough to keep you motivated while helping you boost your cognitive skills.…

From the developer’s store description.

For developers and the curious

The full report

The evidence, sources, measurements and versions behind every label above.

Findings and evidence

2 published · 8 shown, not confirmed

Things to watch for 2

Findings that met the published evidence standard.

Multiple ad networks bundled

Measured

Bundles 16 distinct ad networks / mediation SDKs: Amazon Publisher Services, AppLovin MAX, BidMachine, Chartboost and 12 more

Sources
SDKs in the app package
Agreement
A measured fact from one deterministic, checkable source.
Where measured
Found in the Android app’s package
Definition

The package embeds several distinct advertising or mediation SDKs — a stack built for ad volume, not for a single house ad.

How we know

Package artefact

sha256:97a0c2aa2f11d5f8fb315377ccc32537b101e98a7e944a4eb04546e2d584a47c

Aggressive ad load

2 independent sources agree

Aggressive ad load: raised by 9 distinct reviewers (about 1 in 23 reviews we read)

Sources
User reviews and the app's own on-screen text
Agreement
2 independent kinds of source agree.
Where measured
Found in the Android app’s package. From Google Play reviews
Definition

Advertising volume or placement that interrupts normal use: ads between every action, unskippable or forced full-screen ads.

Open evidence
How we know
Share and sample
4.3% of the 210 reviews read.

One source only — shown, not confirmed 8

Open observations that have not cleared the evidence bar.

Progress pauses until you wait or pay

One source only

Use is rationed by a refillable meter: "Out of lives"

Sources
The app's own on-screen text
Agreement
Only one kind of source so far. Shown, not counted.
Where measured
Found in the Android app’s package

This observation has not cleared the required evidence standard.

Definition

Use is rationed by an energy/hearts/lives meter that runs out and forces a wait or a purchase.

How we know

Package artefact

sha256:97a0c2aa2f11d5f8fb315377ccc32537b101e98a7e944a4eb04546e2d584a47c

Paywall with no way past it

One source only

Ships a purchase screen ("Paywall") with no dismiss, skip or "continue free" text anywhere in the package

Sources
The app's own on-screen text
Agreement
Only one kind of source so far. Shown, not counted.
Where measured
Found in the Android app’s package

This observation has not cleared the required evidence standard.

Definition

A paywall screen ships with no dismiss, skip or 'maybe later' affordance anywhere in the package, so the app's own text offers no way in without paying.

How we know

Package artefact

sha256:97a0c2aa2f11d5f8fb315377ccc32537b101e98a7e944a4eb04546e2d584a47c

Hard to cancel

One source only

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

Sources
The app's own on-screen text
Agreement
Only one kind of source so far. Shown, not counted.
Where measured
Found in the Android app’s package

This observation has not cleared the required evidence standard.

Definition

Cancelling the subscription is blocked, hidden, multi-step, or simply does not take effect.

How we know

Package artefact

sha256:97a0c2aa2f11d5f8fb315377ccc32537b101e98a7e944a4eb04546e2d584a47c

Pay to progress

One source only

The app's own text says: "Keep the momentum going! Jump straight to the next level without losing progress."

Sources
The app's own on-screen text
Agreement
Only one kind of source so far. Shown, not counted.
Where measured
Found in the Android app’s package

This observation has not cleared the required evidence standard.

Definition

Advancement or competition is gated behind spending money rather than playing.

How we know

Package artefact

sha256:97a0c2aa2f11d5f8fb315377ccc32537b101e98a7e944a4eb04546e2d584a47c

Paywall blocks the basics

One source only

The app's own text says: "Unlock all games"

Sources
The app's own on-screen text
Agreement
Only one kind of source so far. Shown, not counted.
Where measured
Found in the Android app’s package

This observation has not cleared the required evidence standard.

Definition

The core of the app — not extras — sits behind payment, or previously-free function moved behind a paywall.

How we know

Package artefact

sha256:97a0c2aa2f11d5f8fb315377ccc32537b101e98a7e944a4eb04546e2d584a47c

Developer says data deletion can be requested

One source only

The app's own text says: "Delete account"

Sources
The app's own on-screen text
Agreement
Only one kind of source so far. Shown, not counted.
Where measured
Found in the Android app’s package

This observation has not cleared the required evidence standard.

Definition

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.

How we know

Package artefact

sha256:97a0c2aa2f11d5f8fb315377ccc32537b101e98a7e944a4eb04546e2d584a47c

Usable without an account

One source only

The app's own text says: "By tapping Next, you confirm that the age you selected is accurate. You also agree to our Terms of Use and acknowledge our Privacy Policy."

Sources
The app's own on-screen text
Agreement
Only one kind of source so far. Shown, not counted.
Where measured
Found in the Android app’s package

This observation has not cleared the required evidence standard.

Definition

The app's own screens offer a way past sign-up — guest access, skipping, or browsing before registering — rather than gating the product behind an account. The store's privacy disclosure is checked alongside it: that disclosure is self-reported, so it corroborates this credit rather than establishing it.

How we know

Package artefact

sha256:97a0c2aa2f11d5f8fb315377ccc32537b101e98a7e944a4eb04546e2d584a47c

Works offline

One source only

The app's own text says: "Download"

Sources
The app's own on-screen text
Agreement
Only one kind of source so far. Shown, not counted.
Where measured
Found in the Android app’s package

This observation has not cleared the required evidence standard.

Definition

The app's own copy describes working without a connection — offline mode, downloading for offline use, or content saved for later. Shown because readers filter on it; it is a feature, not a fairness property, and never counts for or against an app.

How we know

Package artefact

sha256:97a0c2aa2f11d5f8fb315377ccc32537b101e98a7e944a4eb04546e2d584a47c

What reviewers report

210 reviews read · 1 review-based observation

210 reviews read for this analysis. Each observation keeps the sample and store it was based on.

Aggressive ad load

Published finding

It's very useless, Don't download it I feel , they made this game for Publishing ads only, So many ads appeared like 2 minutes of games You will watch an ad for almost two minutes longer, And games also not hard as we expect....

1★ · Google Play · 2026-07-07

too many ads too easy

1★ · Google Play · 2026-08-08

The app idea is good. but it has a lot of advertisements.

1★ · Google Play · 2026-06-15

A sampled review illustrates one person’s experience. It does not establish a finding on its own.

Measurements

8 measured · 0 not assessed

“Not assessed” means we could not measure it. It is never a zero and never a pass.

From store data and reviews

Developer replies to reviews
Replies to fewer than 1 review in 20
Price in the store description
The store description doesn’t list prices (most don’t)
Cancelling, in the store description
The store description doesn’t say how to cancel (most don’t)
Themes reported by reviewers
1 theme reported
Counted from the reviews we have read for this app. "No theme reported" means no theme reached our reporting threshold — it is not a finding that nothing is wrong with this app, and we do not say it is.
Five-star share of ratings
65–79% five-star
Arithmetic on the stores' own published rating counts. It says nothing about why the ratings fall where they do.

In the app package we scanned

Android package 1.19.223, scanned 29 Oct 2026. These describe that package, not the current store version.

Sensitive permissions
None requested
Counted against a fixed list of eighteen sensitive Android permissions: sixteen runtime permissions, among them location, camera, microphone, contacts and SMS, and two the user must switch on in system settings, drawing over other apps and usage access. Requesting one is not itself a finding.
Analytics or tracking SDKs in the scanned package
1–2 found
Advertising SDKs in the scanned package
10 or more found
Counted as distinct SDKs in the package we scanned. One mediation bundle can contribute several, so this is not a count of advertisers.
How we know

Supporting measurements: not a complete list of possible harms or positives. Measurement vocabulary 1.4 · how these are measured

Versions and dates analysed

Assessed 30 Oct 2026

This analysis describes version 1.19.223 of the app (the version number recorded inside the package we inspected), analyzed 2026-10-30 .

The store currently lists version 1.19.223, updated 2026-09-24.

Store update history

Each store’s release notes, as the developer wrote them. They are the developer’s words, not ours.

Google Play

Version 1.19.223 · 2026-09-24

No release notes were provided for this version.

Assessment record

Status
Automated analysis
App identifier
braingain-google-brain-training-games-puzzle-iq-test-logic-memory
Assessment date
30 Oct 2026
Sources used
6 independent signals: user reviews, SDKs in the app package, the app's own on-screen text, the app manifest, the store listing and the store privacy disclosure
Reviews read
210
Package examined
Android · 1.19.223 · scanned 29 Oct 2026
Human inspection
Not completed

Assessed 2026-10-30 from 210 user reviews, the app's package, the store listing and its privacy label.

How we know
Measurement vocabulary
1.4

How this page was produced

Analyzed 2026-10-30 Version analyzed: 1.19.2236 independent signals210 reviews scannedConfidence: MediumNot human-reviewedVocabulary v1.14Methodology v1.3
Signals run: user reviews, SDKs in the app package, the app's own on-screen text, the app manifest, the store listing and the store privacy disclosure.

Store facts

Google Play

What the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.

Google Play

Store rating
4.62 ★ · 8,058 ratings
Version
1.19.223
Updated
24 Sep 2026
Price
Free · In-app purchases
Age rating
4+
Size
Not supplied
Open in Google Play
Developer
AIBY Inc.
Category
Education
Listing price
Free · In-app purchases

Purchases the store lists

 What this app sells
Google Play doesn’t publish per-purchase prices.

Method and limits

What this report can and cannot show

How the automated analysis works

This assessment is produced automatically. Six independent signals are read — user reviews, SDKs in the app package, the app's own on-screen text, the app manifest, the store listing and the store privacy disclosure — 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 recurring plan the store lists is named as weekly, the term read from the purchase names, with a list cut off at the store’s 10-item maximum not assessed; 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.

Limits of this report

  • A package scan is static. It identifies code and text in one Android build. It does not measure a live ad session, test a deletion request, or count the steps needed to cancel.
  • Reviews keep their sample. A review-only charge shows distinct reviewers, the share and the sample size, and is published only once it clears that label’s published threshold. Calibration labels are machine-drafted and not yet confirmed by a person.
  • Not assessed is a state. It is never a zero and never a pass.
  • A missing label is not a clean bill of health. It means the evidence did not support one, not that the app is problem-free.
Not yet human-reviewed. A hands-on test can confirm or contradict a finding and adds its own measurements; it does not change a measurement row. Hands-on inspections are not yet open.

Request a correction

[email protected]

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.