Learn Russian Fast: Course v11.21
APK · 55.6 MB · version code 269 · Android 8.0+ · uploaded Jun 4, 2026
- Signature matches the Google Play version Details
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File information
- Version
- v11.21 (269)
- Uploaded
- Jun 4, 2026
- Size
- 55.6 MB
- Requires
- Android 8.0+ (API 26)
- CPU support
- x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
- Screen
- Small screens and larger
- MD5
- 46bed8c90147e5f1cd9c3d8af1d71755
- Signing certificate (SHA-1)
- 1E:F5:D4:E4:21:8D:E6:47:6C:AD:CF:7C:DB:67:E1:E7:4D:A1:22:36
- Signed by
- CN=Mosa Lingua, O=Mosa Lingua
- File name
- com-mosalingua-rulite-269-75060457-46bed8c90147e5f1cd9c3d8af1d71755.apk
- Package
- com.mosalingua.rulite
- Downloads (all versions)
- 100K+
- Age rating
- PEGI 3 · Everyone
What's new in v11.21
Here’s what we updated:
New User Interface in Polish
Other small improvements
If you like this app, please consider rating it. If you have suggestions or need to notify us about bugs you find, email us at [email protected]. Thanks and happy learning!
Permissions (35)
This version requests 35 permissions, 4 of them sensitive.
- Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
- Read phone status and identity Sensitive android.permission.READ_PHONE_STATE
- Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
- Record audio (microphone) Sensitive android.permission.RECORD_AUDIO
- Advertising ID com.google.android.gms.permission.AD_ID
- Badge read (custom) com.sec.android.provider.badge.permission.READ
- Badge write (custom) com.sec.android.provider.badge.permission.WRITE
- Badger badge count read (custom) me.everything.badger.permission.BADGE_COUNT_READ
- Badger badge count write (custom) me.everything.badger.permission.BADGE_COUNT_WRITE
- Full network access android.permission.INTERNET
- Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
- Home broadcast badge (custom) com.sonyericsson.home.permission.BROADCAST_BADGE
- Home provider insert badge (custom) com.sonymobile.home.permission.PROVIDER_INSERT_BADGE
- In-app purchases (Google Play Billing) com.android.vending.BILLING
- Internal broadcast protection (app-defined) com.mosalingua.rulite.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Launcher change badge (custom) com.huawei.android.launcher.permission.CHANGE_BADGE
- Launcher read settings (custom) com.htc.launcher.permission.READ_SETTINGS
- Launcher read settings (custom) com.huawei.android.launcher.permission.READ_SETTINGS
- Launcher read settings (custom) com.oppo.launcher.permission.READ_SETTINGS
- Launcher update badge (custom) com.majeur.launcher.permission.UPDATE_BADGE
- Launcher update count (custom) com.anddoes.launcher.permission.UPDATE_COUNT
- Launcher update shortcut (custom) com.htc.launcher.permission.UPDATE_SHORTCUT
- Launcher write settings (custom) com.huawei.android.launcher.permission.WRITE_SETTINGS
- Launcher write settings (custom) com.oppo.launcher.permission.WRITE_SETTINGS
- Modify audio settings android.permission.MODIFY_AUDIO_SETTINGS
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Push messaging (app-defined) com.mosalingua.rulite.permission.C2D_MESSAGE
- Read app badge android.permission.READ_APP_BADGE
- Receive push notifications com.google.android.c2dm.permission.RECEIVE
- Run at startup android.permission.RECEIVE_BOOT_COMPLETED
- Run foreground services android.permission.FOREGROUND_SERVICE
- Schedule exact alarms android.permission.SCHEDULE_EXACT_ALARM
- Show notifications android.permission.POST_NOTIFICATIONS
- 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 Jun 4, 2026.
- Certificate issued to “Mosa Lingua” This is the certificate of the Google Play version.
- Same certificate as the 4 other versions checked
Store checks
- Developer signature verified Jun 4, 2026
- Validated against Google Play Jun 4, 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 (4 other versions compared). AAPKs doesn't scan files itself.
How to install Learn Russian Fast: Course on Android 8.0+
You'll need about 111.3 MB of free space.
- Download the APK — tap Download APK above (55.6 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-mosalingua-rulite-269-75060457-46bed8c90147e5f1cd9c3d8af1d71755.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 46bed8c90147e5f1cd9c3d8af1d71755. 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 Learn Russian Fast: Course — 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 8.0+). Download it again, or pick an older version.
- “App not compatible with your device” — this build contains native code for x86 32-bit, 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.