Challenge with Erin! Japanese v2.0.0
APK · 25.9 MB · version code 74 · Android 8.0+ · uploaded Apr 22, 2024
- Same certificate as v2.0.2, which matches Google Play Details
Quick check before downloading
Answer this to unlock the download. It keeps automated downloaders away.
Compared with the latest version
The latest version is v2.0.2, uploaded Sep 4, 2026 — about 2 years after this one.
- Size: this file is 25.9 MB; the latest is 40.6 MB (14.7 MB larger).
- Both versions request the same permissions.
File information
- Version
- v2.0.0 (74)
- Uploaded
- Apr 22, 2024
- Size
- 25.9 MB
- Requires
- Android 8.0+ (API 26)
- CPU support
- ARM (legacy), ARM 32-bit, ARM 64-bit
- Graphics
- OpenGL ES 2.0+
- Screen
- Small screens and larger
- MD5
- d0bc5f2df4828ea31e2a137f6dfeede3
- Signing certificate (SHA-1)
- DE:26:A2:44:D7:53:FE:9A:F9:EF:85:D1:B9:7A:E8:E5:33:FB:0A:18
- Signed by
- CN=Omori Hiroshi, OU=Research and Development Section Japanese-Language Institute Urawa, O=Japan Foundation, L=Saitama-City?, ST=Saitama Pref., C=JP
- File name
- jp-ne-erin-challengeerin-74-67468694-d0bc5f2df4828ea31e2a137f6dfeede3.apk
- Package
- jp.ne.erin.challengeerin
- Downloads (all versions)
- 50K+
- Age rating
- PEGI 3 · Everyone
What's new in v2.0.0
Upgrade due to user authentication and user data processing changes.
The previous version will not be available after this upgrade.
Please note that if you delete the application before updating, the data in the application will not be carried over.
Game data (OBB)
This app needs extra data files (234.1 MB) next to the APK. Their download links appear once the download is unlocked.
- Main OBB
- main.72.jp.ne.erin.challengeerin.obb (234.1 MB)
- Main OBB MD5
- 33af9e045121443cf5feadaddf46f756
Permissions (13)
This version requests 13 permissions, 4 of them sensitive.
- Camera Sensitive android.permission.CAMERA
- Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
- Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
- Record audio (microphone) Sensitive android.permission.RECORD_AUDIO
- Add home-screen shortcuts com.android.launcher.permission.INSTALL_SHORTCUT
- Change network state android.permission.CHANGE_NETWORK_STATE
- Full network access android.permission.INTERNET
- Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
- Google Play license check com.android.vending.CHECK_LICENSE
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Push messaging (app-defined) com.ourcompany.ourapp.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 “Japan Foundation” This is the certificate of the Google Play version.
- Same certificate as v2.0.2, which matches Google Play v2.0.2
Store checks
- Developer signature verified Apr 22, 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 (3 other versions compared). AAPKs doesn't scan files itself.
How to install Challenge with Erin! Japanese on Android 8.0+
You'll need about 285.9 MB of free space (the APK plus 234.1 MB of game data).
- Download the APK — tap Download APK above (25.9 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 jp-ne-erin-challengeerin-74-67468694-d0bc5f2df4828ea31e2a137f6dfeede3.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 d0bc5f2df4828ea31e2a137f6dfeede3. 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).
- Copy the game data — before the first launch, move the OBB file (234.1 MB), without renaming or unzipping, into Android/obb/jp.ne.erin.challengeerin/. On Android 11 and later many file managers can't open that folder; use the built-in Files app or copy it from a computer over USB.
- Open Challenge with Erin! Japanese — 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 ARM (legacy), 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.