Math Workout - Brain Training v6.5
APK · 9.6 MB · version code 30737 · Android 6.0+ · uploaded Jul 19, 2026
- Signature matches the Google Play version Details
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File information
- Version
- v6.5 (30737)
- Uploaded
- Jul 19, 2026
- Size
- 9.6 MB
- Requires
- Android 6.0+ (API 23)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- dd8940640e31cfeb51ca2d3bd836c2a6
- Signing certificate (SHA-1)
- 36:93:8E:D8:F8:F3:AC:9B:B7:E0:DC:E2:2A:88:5F:86:FC:33:D8:3A
- Signed by
- CN=Tigran Simonyan, OU=Self Development, O=Self Development, L=Yerevan, ST=Erebuni, C=AM
- File name
- io-ts-mathworkout-30737-75717618-dd8940640e31cfeb51ca2d3bd836c2a6.apk
- Package
- io.ts.mathworkout
- Downloads (all versions)
- 1M+
- Age rating
- PEGI 3 · Everyone
What's new in v6.5
- Optimized app for upcoming Android 15 requirements.
- Improved fullscreen experience with better edge-to-edge support.
Permissions (9)
This version requests 9 permissions, none of them sensitive.
- Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
- Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
- Access adservices topics android.permission.ACCESS_ADSERVICES_TOPICS
- Control vibration android.permission.VIBRATE
- Full network access android.permission.INTERNET
- Internal broadcast protection (app-defined) io.ts.mathworkout.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Run foreground services android.permission.FOREGROUND_SERVICE
- View network connections android.permission.ACCESS_NETWORK_STATE
Security & authenticity
Security rating: Trusted
Signing certificate
- Signature matches the Google Play version Checked by the source store on Jul 19, 2026.
- Certificate issued to “Self Development” This is the certificate of the Google Play version.
- Same certificate as the other version checked
Store checks
- Developer signature verified Jul 19, 2026
- Validated against Google Play Jul 19, 2026
- Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020
Scans come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (1 other version compared). AAPKs doesn't scan files itself.
How to install Math Workout - Brain Training on Android 6.0+
You'll need about 19.2 MB of free space.
- Download the APK — tap Download APK above (9.6 MB). Chrome shows “File might be harmful” for every APK file; choose Download anyway only if you trust this file.
- Open the file — tap the download notification, or open Files › Downloads and tap io-ts-mathworkout-30737-75717618-dd8940640e31cfeb51ca2d3bd836c2a6.apk.
- Allow the install (first time only) — Android 8 and later asks for permission the first time an app opens an APK: tap Settings in the prompt, turn on Allow from this source, then go back. Manual path: Settings › Apps › Special app access › Install unknown apps (on Samsung: Settings › Apps › ⋮ › Special access). On Android 7 and older: Settings › Security › Unknown sources.
- Check the file (optional) — the MD5 of the downloaded file should be dd8940640e31cfeb51ca2d3bd836c2a6. If it differs, the file is damaged or was changed: delete it and download again.
- Tap Install — Android asks “Do you want to install this app?”. If Google Play Protect shows a warning, read it before you continue: the source store rated this file Trusted, but only install apps from sources you trust. If an earlier version is installed, this one only installs as an update when it is signed with the same certificate (SHA-1 shown above).
- Open Math Workout - Brain Training — tap Open on the install screen, or find it in your app drawer.
Common install problems
- “App not installed” — a version signed with a different certificate, or a newer version, is already installed (Android doesn't allow downgrades). Uninstall it first; back up your data, because uninstalling deletes it.
- “There was a problem parsing the package” — the file is incomplete, or your Android is too old (this version needs Android 6.0+). Download it again, or pick an older version.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.