Counter Keeper: Tally Counter
v1.0.21 · 5.6 MB · code 21
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File information
UpdatedSep 18, 2025
PublishedDec 22, 2022
Packagecom.mathdomaindevelopment.counterkeeper
Versionv1.0.21 (21)
Size5.6 MB
MD5760495323e0c2c7fe2147136c5b20e55
Min SDK21
Malware scanTRUSTED
Signature SHA1E4:14:E0:E0:6C:CC:B8:58:06:89:BB:8D:96:CF:9C:91:F1:12:08:C1
SignerCN=Edgar, OU=MATH Domain, O=MATH Domain Development, ST=CA, C=US
Total downloads10,000
This version10,000
DeveloperMATH Domain Development
Age ratingEveryone
What's new in v1.0.21
(1.0.21)
+ Updated target API to Android 15 (SDK 35): Added support for Predictive Back Gesture.
+ Updated Google Play Billing Library to 8.0.0.
+ Dialog shown after certain error occurs when setting up Callout Feedback now gives the options to Retry Setup or Keep Off.
+ Added missing translations for Chinese and Arabic.
+ Addressed several deprecations.
+ Updated target API to Android 15 (SDK 35): Added support for Predictive Back Gesture.
+ Updated Google Play Billing Library to 8.0.0.
+ Dialog shown after certain error occurs when setting up Callout Feedback now gives the options to Retry Setup or Keep Off.
+ Added missing translations for Chinese and Arabic.
+ Addressed several deprecations.
Security scan
TRUSTED
- Developer signature verified 2025-09-18
- Signature SHA1 E4:14:E0:E0:6C:CC:B8:58:06:89:BB:8D:96:CF:9C:91:F1:12:08:C1
- File MD5 760495323e0c2c7fe2147136c5b20e55
How to install Counter Keeper: Tally Counter v1.0.21 on Android 5.0 Lollipop+
Takes about 2 minutes. You'll need roughly 5.6 MB of free storage.
- Grab com.mathdomaindevelopment.counterkeeper_21.apk — hit the Download button above (5.6 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 760495323e0c2c7f…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.mathdomaindevelopment.counterkeeper_21.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=Edgar, OU=MATH Domain, O=MATH Domain Development, ST=CA, 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 TRUSTED).
- Done — open Counter Keeper: Tally Counter — tap Open on the install screen, or find the Counter Keeper: Tally Counter icon in your app drawer.
Common install errors for Counter Keeper: Tally Counter
- "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 5.0 Lollipop 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.