Math (Division) Step By Step v3.9.12
APK · 4.7 MB · version code 51 · Android 5.0+ · uploaded Dec 6, 2025
- Signature matches the Google Play version Details
Quick check before downloading
Answer this to unlock the download. It keeps automated downloaders away.
Compared with the latest version
The latest version is v4.0.50, uploaded Sep 8, 2026 — about 9 months after this one.
- Size: this file is 4.7 MB; the latest is 5.3 MB (657.8 KB larger).
- Android: this version needs Android 5.0+; the latest needs Android 10+. Use this one if your device runs an older Android release.
- The latest version asks for 1 more permission: Read basic phone state.
- The latest version no longer asks for: Access adservices ad id, Access adservices attribution, Access adservices topics, Google Play install referrer.
File information
- Version
- v3.9.12 (51)
- Uploaded
- Dec 6, 2025
- Size
- 4.7 MB
- Requires
- Android 5.0+ (API 21)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- a8b4af6d82d0ca902ee46ce843ed609a
- Signing certificate (SHA-1)
- E9:62:13:18:6D:5A:B0:5D:AA:1B:08:D0:3A:39:62:13:E0:11:C5:2A
- Signed by
- CN=marwan duwaji, OU=none, O=digital duwaji, L=Wayne, ST=NJ, C=US
- File name
- com-digitalduwaji-mathstep-by-step-51-72695262-a8b4af6d82d0ca902ee46ce843ed609a.apk
- Package
- com.digitalduwaji.mathstep_by_step
- Downloads (all versions)
- 500K+
- Age rating
- PEGI 3 · Everyone
Permissions (11)
This version requests 11 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
- Advertising ID com.google.android.gms.permission.AD_ID
- Control vibration android.permission.VIBRATE
- Full network access android.permission.INTERNET
- Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
- Internal broadcast protection (app-defined) com.digitalduwaji.mathstep_by_step.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 Dec 6, 2025.
- Certificate issued to “digital duwaji” This is the certificate of the Google Play version.
- Same certificate as the 5 other versions checked
Store checks
- Developer signature verified Dec 6, 2025
- Validated against Google Play Dec 6, 2025
- 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 (5 other versions compared). AAPKs doesn't scan files itself.
How to install Math (Division) Step By Step on Android 5.0+
You'll need about 9.3 MB of free space.
- Download the APK — tap Download APK above (4.7 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-digitalduwaji-mathstep-by-step-51-72695262-a8b4af6d82d0ca902ee46ce843ed609a.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 a8b4af6d82d0ca902ee46ce843ed609a. 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 (Division) Step By Step — 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 5.0+). 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.