Math Challenge - Brain Workout
v1.0.1 · 4 MB · code 2
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File information
UpdatedOct 29, 2024
PublishedSep 9, 2019
Packagecom.yersinapps.math_challenge
Versionv1.0.1 (2)
Size4 MB
MD52b7d41362d71bc1d898bd8c446437ec0
Min SDK8
Malware scanTRUSTED
Signature SHA14C:CC:7A:A8:10:C7:E4:C1:FC:B9:B7:27:D4:FE:D1:17:F7:88:BD:96
SignerCN=Vu Hung Son
Total downloads1,605
This version1,605
DeveloperJet VHS
Age ratingMedium Maturity
Security scan
TRUSTED
- Developer signature verified 2015-01-30
- Scanned for malware 2020-10-08 11:43:19
- Signature SHA1 4C:CC:7A:A8:10:C7:E4:C1:FC:B9:B7:27:D4:FE:D1:17:F7:88:BD:96
- File MD5 2b7d41362d71bc1d898bd8c446437ec0
How to install Math Challenge - Brain Workout v1.0.1 on Android API 8+
Takes about 2 minutes. You'll need roughly 4 MB of free storage.
- Grab com.yersinapps.math_challenge_2.apk — hit the Download button above (4 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 2b7d41362d71bc1d…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.yersinapps.math_challenge_2.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=Vu Hung Son. 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 TRUSTED).
- Done — open Math Challenge - Brain Workout — tap Open on the install screen, or find the Math Challenge - Brain Workout icon in your app drawer.
Common install errors for Math Challenge - Brain Workout
- "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 API 8 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.