Maths Numbers for Kids
v2.0 · 11.5 MB · code 30
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File information
UpdatedFeb 9, 2026
PublishedFeb 26, 2021
Packageau.com.penguinapps.android.math
Versionv2.0 (30)
Size11.5 MB
MD550285a7f1de2981dc00b4f3bec65cfb2
Min SDK23
Malware scanTRUSTED
Signature SHA18D:B2:61:EF:14:76:93:AE:26:0C:03:E9:63:03:8D:B1:82:07:FD:3F
SignerCN=Alex Ooi, OU=android, O=alexooi.com, L=Melbourne, ST=Victoria, C=au
Total downloads100,000
This version100,000
DeveloperPenguin Apps
Age ratingEveryone
What's new in v2.0
Bug fixes and performance improvements.
Security scan
TRUSTED
- Developer signature verified 2026-02-09
- Signature SHA1 8D:B2:61:EF:14:76:93:AE:26:0C:03:E9:63:03:8D:B1:82:07:FD:3F
- File MD5 50285a7f1de2981dc00b4f3bec65cfb2
How to install Maths Numbers for Kids v2.0 on Android 6.0 Marshmallow+
Takes about 2 minutes. You'll need roughly 11.5 MB of free storage.
- Grab au.com.penguinapps.android.math_30.apk — hit the Download button above (11.5 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 50285a7f1de2981d…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find au.com.penguinapps.android.math_30.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=Alex Ooi, OU=android, O=alexooi.com, L=Melbourne, ST=Victoria, C=au. 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 Maths Numbers for Kids — tap Open on the install screen, or find the Maths Numbers for Kids icon in your app drawer.
Common install errors for Maths Numbers for Kids
- "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.