ProBrain
v1.1.8 · 10.6 MB · code 8
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File information
UpdatedJun 7, 2024
PublishedJul 8, 2021
Packagecom.ruchanokal.mathmaster
Versionv1.1.8 (8)
Size10.6 MB
MD5b802cf2db6fcacb9acc650aef1dc8191
Min SDK23
Malware scanUNKNOWN
Signature SHA144:95:BD:21:C5:09:4A:B3:07:6E:1E:C6:E2:40:FF:E8:57:D7:E9:C1
SignerCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Total downloads50
This version50
Developerokaltech
Age ratingEveryone
What's new in v1.1.8
First Publish
Security scan
UNKNOWN
- Developer signature verified 2024-06-07
- Signature SHA1 44:95:BD:21:C5:09:4A:B3:07:6E:1E:C6:E2:40:FF:E8:57:D7:E9:C1
- File MD5 b802cf2db6fcacb9acc650aef1dc8191
How to install ProBrain v1.1.8 on Android 6.0 Marshmallow+
Takes about 2 minutes. You'll need roughly 10.6 MB of free storage.
- Grab com.ruchanokal.mathmaster_8.apk — hit the Download button above (10.6 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 b802cf2db6fcacb9…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.ruchanokal.mathmaster_8.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 ProBrain — tap Open on the install screen, or find the ProBrain icon in your app drawer.
Common install errors for ProBrain
- "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 6.0 Marshmallow 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.