Math King
v1.11 · 3.5 MB · code 11
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File information
UpdatedApr 25, 2026
PublishedJan 3, 2019
Packagecom.sorex.mathking
Versionv1.11 (11)
Size3.5 MB
MD50cadfe5cc489d9e30bc69f615ec27713
Min SDK9
Malware scanTRUSTED
Signature SHA110:CE:4B:B4:EC:A1:AA:0D:03:0A:39:24:24:93:38:16:6F:DC:E9:33
SignerCN=Geert Verschueren, O=Sorex, C=BE
Total downloads100
This version100
DeveloperGeertV
Age ratingEveryone
What's new in v1.11
Privacy policy added to the app.
Changes to the main menu.
App starts faster.
Changes to the main menu.
App starts faster.
Security scan
TRUSTED
- Developer signature verified 2018-01-15
- Scanned for malware 2020-10-31 04:33:19
- Signature SHA1 10:CE:4B:B4:EC:A1:AA:0D:03:0A:39:24:24:93:38:16:6F:DC:E9:33
- File MD5 0cadfe5cc489d9e30bc69f615ec27713
How to install Math King v1.11 on Android API 9+
Takes about 2 minutes. You'll need roughly 3.5 MB of free storage.
- Grab com.sorex.mathking_11.apk — hit the Download button above (3.5 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 0cadfe5cc489d9e3…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.sorex.mathking_11.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=Geert Verschueren, O=Sorex, C=BE. 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 King — tap Open on the install screen, or find the Math King icon in your app drawer.
Common install errors for Math King
- "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 9 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.