Scientific calculator plus advanced 991 calc v5.0.5.964
APK · 23.8 MB · version code 20200828 · Android 4.1+ · uploaded Jun 28, 2026
- 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 v5.4.4.229, uploaded Jun 18, 2026.
- Size: this file is 23.8 MB; the latest is 25.1 MB (1.3 MB larger).
- Android: this version needs Android 4.1+; the latest needs Android 4.2+. Use this one if your device runs an older Android release.
- The latest version asks for 1 more permission: Run at startup.
- The latest version no longer asks for: Read shared storage, Modify shared storage, Receive push notifications.
File information
- Version
- v5.0.5.964 (20200828)
- Uploaded
- Jun 28, 2026
- Size
- 23.8 MB
- Requires
- Android 4.1+ (API 16)
- CPU support
- Any (no native code)
- Screen
- Small screens and larger
- MD5
- 629cd2cf0719364c50ca92f379b356e8
- Signing certificate (SHA-1)
- 84:D7:1A:38:34:4E:15:F1:BD:49:B0:C5:94:45:43:2D:0D:56:5E:6A
- Signed by
- CN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
- File name
- advanced-scientific-calculator-calc991-plus-20200828-75397125-629cd2cf0719364c50ca92f379b356e8.apk
- Package
- advanced.scientific.calculator.calc991.plus
- Downloads (all versions)
- 50M+
- Age rating
- PEGI 3 · Everyone
What's new in v5.0.5.964
We appreciate all valuable feedback.
In this update, we added new features, fixed some problems and improved the math engine.
Thanks for using our app.
Permissions (10)
This version requests 10 permissions, 2 of them sensitive.
- Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
- Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
- Add home-screen shortcuts com.android.launcher.permission.INSTALL_SHORTCUT
- 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
- In-app purchases (Google Play Billing) com.android.vending.BILLING
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Receive push notifications com.google.android.c2dm.permission.RECEIVE
- 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 Jun 28, 2026.
- Certificate from Google Play App Signing Google keeps the signing key for the developer, so the certificate carries Google's name.
- Same certificate as the other version checked
Store checks
- Developer signature not checked yet Jun 28, 2026
- Validated against Google Play Jun 28, 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 Scientific calculator plus advanced 991 calc on Android 4.1+
You'll need about 47.7 MB of free space.
- Download the APK — tap Download APK above (23.8 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 advanced-scientific-calculator-calc991-plus-20200828-75397125-629cd2cf0719364c50ca92f379b356e8.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 629cd2cf0719364c50ca92f379b356e8. 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 Scientific calculator plus advanced 991 calc — 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 4.1+). 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.