Math Tutorials v2.39
APK · 15.3 MB · version code 139 · Android 6.0+ · uploaded Apr 29, 2026
- Signature matches the Google Play version Details
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Compared with the latest version
The latest version is v2.95, uploaded Jun 14, 2026 — about 1 month after this one.
- Size: this file is 15.3 MB; the latest is 19.4 MB (4.1 MB larger).
- Android: this version needs Android 6.0+; the latest needs Android 8.0+. Use this one if your device runs an older Android release.
- The latest version asks for 2 more permissions: Access adservices attribution, Access adservices topics.
- The latest version no longer asks for: Run foreground services, Run at startup.
File information
- Version
- v2.39 (139)
- Uploaded
- Apr 29, 2026
- Size
- 15.3 MB
- Requires
- Android 6.0+ (API 23)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- a3116943443a54b466e25b1c1fe10f2e
- Signing certificate (SHA-1)
- AC:4B:39:75:09:FC:F5:C5:31:B9:25:2A:64:CA:A4:68:6E:F2:D3:A6
- Signed by
- CN=Daniel C?rdoba, OU=duhnnae.com, O=duhnnae.com, L=Terrassa, ST=Barcelona, C=es
- File name
- com-duhnnae-learnmathtutorials-139-74552718-a3116943443a54b466e25b1c1fe10f2e.apk
- Package
- com.duhnnae.learnmathtutorials
- Downloads (all versions)
- 500K+
- Age rating
- PEGI 3 · Everyone
What's new in v2.39
Take notes while watching videos.
Added videos. Added polynomials.
Math tutorials - Geometry - Algebra - Arithmetic
Functions - Limits - Derivatives
Added search engine and recently watched tab.
Permissions (11)
This version requests 11 permissions, 1 of them sensitive.
- Approximate location Sensitive android.permission.ACCESS_COARSE_LOCATION
- Advertising ID com.google.android.gms.permission.AD_ID
- Full network access android.permission.INTERNET
- Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
- In-app purchases (Google Play Billing) com.android.vending.BILLING
- Internal broadcast protection (app-defined) com.duhnnae.learnmathtutorials.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Run at startup android.permission.RECEIVE_BOOT_COMPLETED
- Run foreground services android.permission.FOREGROUND_SERVICE
- View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
- 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 Apr 29, 2026.
- Certificate issued to “duhnnae.com” This is the certificate of the Google Play version.
- Same certificate as the 4 other versions checked
Store checks
- Developer signature verified Apr 29, 2026
- Validated against Google Play Apr 29, 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 (4 other versions compared). AAPKs doesn't scan files itself.
How to install Math Tutorials on Android 6.0+
You'll need about 30.6 MB of free space.
- Download the APK — tap Download APK above (15.3 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 com-duhnnae-learnmathtutorials-139-74552718-a3116943443a54b466e25b1c1fe10f2e.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 a3116943443a54b466e25b1c1fe10f2e. 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 Tutorials — 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.