Sum - Math Challenge v4.0.1
APK · 6.3 MB · version code 11 · Android 4.2+ · uploaded Jun 7, 2024
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File information
- Version
- v4.0.1 (11)
- Uploaded
- Jun 7, 2024
- Size
- 6.3 MB
- Requires
- Android 4.2+ (API 17)
- CPU support
- Any (no native code)
- Graphics
- OpenGL ES 2.0+
- Screen
- Small screens and larger
- MD5
- 4fc72612bf0cc5f6422d45a4ce4f178a
- Signing certificate (SHA-1)
- 81:39:D4:3E:B1:07:5F:CF:E6:92:DE:00:CE:11:97:4A:1F:E2:D2:00
- Signed by
- CN=Rajat Vaghani, O=Cyber Sky
- File name
- cybersky-sum-11-67870249-4fc72612bf0cc5f6422d45a4ce4f178a.apk
- Package
- cybersky.sum
- Downloads (all versions)
- 10K+
- Age rating
- PEGI 3 · Everyone
What's new in v4.0.1
*Huge* update:
- Improvements across the board
- UI Changes
- Few tiny bugs squashed
- Added support for latest Android OS'
Permissions (5)
This version requests 5 permissions, none of them sensitive.
- Full network access android.permission.INTERNET
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Push messaging (app-defined) cybersky.sum.permission.C2D_MESSAGE
- Receive push notifications com.google.android.c2dm.permission.RECEIVE
- View network connections android.permission.ACCESS_NETWORK_STATE
Security & authenticity
Security rating: Trusted
Signing certificate
- Certificate issued to “Cyber Sky” The developer's name — though anyone can put any name in a certificate.
Store checks
- Developer signature verified Jun 7, 2024
- 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. AAPKs doesn't scan files itself.
How to install Sum - Math Challenge on Android 4.2+
You'll need about 12.6 MB of free space.
- Download the APK — tap Download APK above (6.3 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 cybersky-sum-11-67870249-4fc72612bf0cc5f6422d45a4ce4f178a.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 4fc72612bf0cc5f6422d45a4ce4f178a. 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 Sum - Math Challenge — 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 4.2+). 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.