Some warnings 1 confirmed warning. Checked: 404 reviews, the Android app’s code, the store listing and the privacy label.
From our automated analysis, 30 Oct 2026. Every label links to its evidence in the full report below.
This analysis describes version 23.0.25662 of the app (the version number recorded inside the package we inspected), analyzed 2026-10-30 .
The store currently lists version 23.0.25662, updated 2025-12-11.
Store screenshots supplied by the developer.
Are you ready to become the best trainer? Monster Masters EX is a multiplayer game in real time where you can collect, train and evolve dozens of monsters. Create your strategy and get ready for battle!
PLEASE NOTE! Monster Masters EX is free to download and play, however, some game items can also be purchased for real money. If you do not want to use this feature, please set up password protection for purchases in the settings of your app store.
A network connection is required.…
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 3 distinct ad networks / mediation SDKs: Amazon Publisher Services, AppLovin MAX, Google Mobile Ads (AdMob / Ad Manager)
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:b5a9e63640bb42c0ec9d118716be964b2162adc8bf993d55b8169737bec7ac6aSpecific 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.
Progress is gated behind watching an ad: "Watch a video to earn a reward!"
This observation has not cleared the required evidence standard.
Advertising volume or placement that interrupts normal use: ads between every action, unskippable or forced full-screen ads.
Package artefact
sha256:b5a9e63640bb42c0ec9d118716be964b2162adc8bf993d55b8169737bec7ac6aSells 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:b5a9e63640bb42c0ec9d118716be964b2162adc8bf993d55b8169737bec7ac6aProgress itself is for sale: "[ShopController - BuyRMItem] - failed to buy gems bundle"
This observation has not cleared the required evidence standard.
Advancement or competition is gated behind spending money rather than playing.
Package artefact
sha256:b5a9e63640bb42c0ec9d118716be964b2162adc8bf993d55b8169737bec7ac6aThe app's own text says: "Open ad when you're back online."
This observation has not cleared the required evidence standard.
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.
Package artefact
sha256:b5a9e63640bb42c0ec9d118716be964b2162adc8bf993d55b8169737bec7ac6aNo review-based observation is published in this assessment. That does not establish that reviewers had no problems.
“Not assessed” means we could not measure it. It is never a zero and never a pass.
Android package 23.0.25662, scanned 25 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 23.0.25662 of the app (the version number recorded inside the package we inspected), analyzed 2026-10-30 .
The store currently lists version 23.0.25662, updated 2025-12-11.
Each store’s release notes, as the developer wrote them. They are the developer’s words, not ours.
SMALL UPDATE - Fixed Shop bugs (some players purchased items but did not receive them) - Early game improvements: - New visual effect for Activation Bar during battle - New sound effects for Fireball, Freeze, Leaf Cutter, Fly - New sound effect when activating any Move in battle - Added some extra rewards in Fame Road (0-500), claimable via ads
No release notes were provided for this version.
monster-masters-exAssessed 2026-10-30 from 404 user reviews, the app's package, the store listing and its privacy label.
What the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.
From the store listing. Billing terms are read from each purchase’s name — the stores don’t publish them — so treat them as a strong hint, not a disclosure.
These are really on sale; we just can’t tell from the name whether they recur.
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.
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.