Auto Change Wallpaper v3.7
APK · 9.3 MB · version code 18 · Android 4.4+ · uploaded Jul 22, 2026
- Signature matches the Google Play version Details
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File information
- Version
- v3.7 (18)
- Uploaded
- Jul 22, 2026
- Size
- 9.3 MB
- Requires
- Android 4.4+ (API 19)
- CPU support
- Any (no native code)
- Graphics
- OpenGL ES 2.0+
- Screen
- Small screens and larger
- MD5
- 9852d11d542f1dc72c73fbc4367512f1
- Signing certificate (SHA-1)
- 61:38:6D:DD:1A:44:6E:09:1C:FA:20:88:D3:92:EA:1C:25:B3:EF:BC
- Signed by
- C=84
- File name
- viet-dev-apps-autochangewallpaper-18-75753318-9852d11d542f1dc72c73fbc4367512f1.apk
- Package
- viet.dev.apps.autochangewallpaper
- Downloads (all versions)
- 500K+
- Age rating
- PEGI 3 · Everyone
What's new in v3.7
+ Fix bugs on Samsung devices running One UI 4.
+ Updated some functions to be compatible with Android 12.
Permissions (11)
This version requests 11 permissions, 1 of them sensitive.
- Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
- 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
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Run at startup android.permission.RECEIVE_BOOT_COMPLETED
- Run foreground services android.permission.FOREGROUND_SERVICE
- Set wallpaper android.permission.SET_WALLPAPER
- 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 Jul 22, 2026.
- Same certificate as the other version checked
Store checks
- Developer signature verified Jul 22, 2026
- Validated against Google Play Jul 22, 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 Auto Change Wallpaper on Android 4.4+
You'll need about 18.6 MB of free space.
- Download the APK — tap Download APK above (9.3 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 viet-dev-apps-autochangewallpaper-18-75753318-9852d11d542f1dc72c73fbc4367512f1.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 9852d11d542f1dc72c73fbc4367512f1. 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 Auto Change Wallpaper — 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 4.4+). 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.