Semper - Learn Vocabulary v5.2.020
APK · 17.4 MB · version code 2020 · Android 4.1+ · uploaded Jan 21, 2017
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File information
- Version
- v5.2.020 (2020)
- Uploaded
- Jan 21, 2017
- Size
- 17.4 MB
- Requires
- Android 4.1+ (API 16)
- CPU support
- Any (no native code)
- Graphics
- OpenGL ES 2.0+
- Screen
- Small screens and larger
- MD5
- 9d47639e2262548c067d9a3da80a2d13
- Signing certificate (SHA-1)
- B8:4C:BC:1F:BC:3D:1C:C7:CF:53:F4:69:9C:8C:BA:7D:AE:F9:1E:7F
- Signed by
- CN=Felix Nienstaedt, OU=UYB, O=UYB, L=Berlin, ST=Berlin, C=de
- File name
- co-unlockyourbrain-2020-23078558-9d47639e2262548c067d9a3da80a2d13.apk
- Package
- co.unlockyourbrain
- Downloads (all versions)
- 6.3K
- Age rating
- PEGI 3 · Everyone
What's new in v5.2.020
v2004
* Fixed the Math Bugs
* Many background improvements
v2003
* New study, you can now use Semper like a vocab book
* Added pack title on lock and loading screen
* Fixes bug with some locales (TR)
Permissions (27)
This version requests 27 permissions, 7 of them sensitive.
- Approximate location Sensitive android.permission.ACCESS_COARSE_LOCATION
- Display over other apps Sensitive android.permission.SYSTEM_ALERT_WINDOW
- Find accounts on the device Sensitive android.permission.GET_ACCOUNTS
- Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
- Precise location Sensitive android.permission.ACCESS_FINE_LOCATION
- Read contacts Sensitive android.permission.READ_CONTACTS
- Read phone status and identity Sensitive android.permission.READ_PHONE_STATE
- Add home-screen shortcuts com.android.launcher.permission.INSTALL_SHORTCUT
- Battery stats android.permission.BATTERY_STATS
- Control vibration android.permission.VIBRATE
- Disable keyguard android.permission.DISABLE_KEYGUARD
- Expand status bar android.permission.EXPAND_STATUS_BAR
- Full network access android.permission.INTERNET
- Get tasks android.permission.GET_TASKS
- In-app purchases (Google Play Billing) com.android.vending.BILLING
- Physical activity recognition com.google.android.gms.permission.ACTIVITY_RECOGNITION
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Push messaging (app-defined) co.unlockyourbrain.permission.C2D_MESSAGE
- Read Google service settings com.google.android.providers.gsf.permission.READ_GSERVICES
- Receive push notifications com.google.android.c2dm.permission.RECEIVE
- Remove home-screen shortcuts com.android.launcher.permission.UNINSTALL_SHORTCUT
- Reorder tasks android.permission.REORDER_TASKS
- Run at startup android.permission.RECEIVE_BOOT_COMPLETED
- Set alarm android.permission.SET_ALARM
- Unlockyourbrain maps receive (custom) co.unlockyourbrain.permission.MAPS_RECEIVE
- View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
- View network connections android.permission.ACCESS_NETWORK_STATE
Security & authenticity
Security rating: Trusted
Signing certificate
- Certificate issued to “UYB” Not the developer's name (“UnlockYourBrain”). Names in certificates can't be verified, so this alone proves nothing.
Store checks
- Developer signature under review Mar 8, 2025
- Antivirus scan passed Nov 27, 2020
- Uploaded by “arsene-lupin” Gold tier · 55,082 followers · uploading since 2012
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 Semper - Learn Vocabulary on Android 4.1+
You'll need about 34.7 MB of free space.
- Download the APK — tap Download APK above (17.4 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 co-unlockyourbrain-2020-23078558-9d47639e2262548c067d9a3da80a2d13.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 9d47639e2262548c067d9a3da80a2d13. 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 Semper - Learn Vocabulary — 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.