Brain Train
v1.22 · 64.8 MB · code 22
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File information
UpdatedJun 7, 2024
PublishedOct 15, 2021
Packagecom.GejjoGames.BrainTrain
Versionv1.22 (22)
Size64.8 MB
MD53a916f155cd543008756241332e37ff9
Min SDK24
ABIsarmeabi-v7a, arm64-v8a
Malware scanUNKNOWN
Signature SHA18C:D4:FD:3A:46:0F:A2:60:9F:96:48:5C:DA:A6:F6:12:F5:5C:5E:AB
SignerCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Total downloads500
This version500
DeveloperGejjo Games
Age ratingEveryone
What's new in v1.22
Bug fixes
Security scan
UNKNOWN
- Developer signature verified 2024-06-07
- Signature SHA1 8C:D4:FD:3A:46:0F:A2:60:9F:96:48:5C:DA:A6:F6:12:F5:5C:5E:AB
- File MD5 3a916f155cd543008756241332e37ff9
How to install Brain Train v1.22 on Android 7.0 Nougat+
Takes about 2 minutes. You'll need roughly 64.8 MB of free storage.
- Grab com.GejjoGames.BrainTrain_22.apk — hit the Download button above (64.8 MB). If your browser warns about APK files, choose Keep or Download anyway — that warning fires on every APK, not just this one.
- Trust your browser to install — on Android 8+ go to Settings → Apps → Special access → Install unknown apps, pick the app you downloaded with (Chrome, Firefox, Files, etc.), and flip Allow from this source. On older Android, toggle Unknown sources under Security.
- (Optional) Verify the file — compute the MD5 of the downloaded APK and make sure it matches 3a916f155cd54300…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.GejjoGames.BrainTrain_22.apk in your Files app under Downloads, then tap it. Android's package installer will appear.
- Check the signer — the install screen will name the publisher. For this build it should read CN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US. If it doesn't match, cancel — you have the wrong file.
- Review permissions & tap Install — scroll the permission list, then confirm. If Play Protect flags it, tap Install anyway (this APK was scanned as UNKNOWN).
- Done — open Brain Train — tap Open on the install screen, or find the Brain Train icon in your app drawer (this build targets armeabi-v7a/arm64-v8a devices).
Common install errors for Brain Train
- "App not installed" — usually means an older or differently-signed version is already on your device. Uninstall it first, then retry. Your data may be lost unless you back it up.
- "Parse error" — the APK is for a newer Android than yours. This version needs Android 7.0 Nougat or later. Pick an older build from the versions list below.
- "There was a problem parsing the package" — the download was interrupted. Delete the file and re-download over Wi-Fi.
- Works on one phone but not another — this build ships armeabi-v7a/arm64-v8a native code. Devices with a different CPU will reject it.