Challengeeos v8.1.0
APK · 84.5 MB · version code 41 · Android 7.0+ · uploaded May 20, 2024
- Same certificate as the other version checked Details
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File information
- Version
- v8.1.0 (41)
- Uploaded
- May 20, 2024
- Size
- 84.5 MB
- Requires
- Android 7.0+ (API 24)
- CPU support
- x86 64-bit, ARM 32-bit, ARM 64-bit
- Graphics
- OpenGL ES 2.0+
- Screen
- Small screens and larger
- MD5
- 905e31fe198541624531f7fcaecfde2d
- Signing certificate (SHA-1)
- FD:21:69:7E:A1:EA:22:5F:A4:C1:3A:D2:00:DD:C1:E8:04:CB:83:54
- Signed by
- CN=quoc huynh, OU=challengeapp, O=challengeapp, L=vietnam, ST=tphcm, C=vn
- File name
- challengedac-com-challenge-dac-app-41-67631135-905e31fe198541624531f7fcaecfde2d.apk
- Package
- challengedac.com.challenge_dac_app
- Downloads (all versions)
- 1K+
- Age rating
- PEGI 3 · Everyone
What's new in v8.1.0
- Fix bugs
- Improve performance
Permissions (16)
This version requests 16 permissions, 5 of them sensitive.
- Approximate location Sensitive android.permission.ACCESS_COARSE_LOCATION
- Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
- Precise location Sensitive android.permission.ACCESS_FINE_LOCATION
- Read media images Sensitive android.permission.READ_MEDIA_IMAGES
- Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
- Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
- Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
- 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) challengedac.com.challenge_dac_app.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Receive push notifications com.google.android.c2dm.permission.RECEIVE
- Show notifications android.permission.POST_NOTIFICATIONS
- View network connections android.permission.ACCESS_NETWORK_STATE
Security & authenticity
Security rating: Trusted
Signing certificate
- Certificate issued to “challengeapp” Not the developer's name (“Challenge Dac”). Names in certificates can't be verified, so this alone proves nothing.
- Same certificate as the other version checked
Store checks
- Developer signature verified May 20, 2024
- Antivirus scan result not available
- 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 Challengeeos on Android 7.0+
You'll need about 169 MB of free space.
- Download the APK — tap Download APK above (84.5 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 challengedac-com-challenge-dac-app-41-67631135-905e31fe198541624531f7fcaecfde2d.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 905e31fe198541624531f7fcaecfde2d. 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 Challengeeos — 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 7.0+). Download it again, or pick an older version.
- “App not compatible with your device” — this build contains native code for x86 64-bit, ARM 32-bit, ARM 64-bit only. Devices with other processors can't install it.
- Blocked by Play Protect — Play Protect checks apps from outside the Play Store. Only continue if you trust the source.