Workout Trainer AI
v12.7 · 96.1 MB · code 12715
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File information
UpdatedMar 28, 2026
PublishedMay 28, 2020
Packagecom.skimble.workouts
Versionv12.7 (12715)
Size96.1 MB
MD598681d09cc9181f3ed8708fc63e472de
Min SDK23
ABIsx86, x86-64, armeabi-v7a, arm64-v8a
Malware scanTRUSTED
Signature SHA1FF:44:00:35:87:2E:78:1B:8F:19:2A:03:94:31:8C:28:A8:E8:F5:F9
SignerCN=Gabriel Vanrenen, OU=Skimble, O=Skimble Inc, L=San Francisco, ST=CA, C=US
Total downloads10,000,000
This version10,000,000
DeveloperSkimble Inc.
Age ratingEveryone
What's new in v12.7
• Improved Form Feedback video analysis to help you improve your exercise technique!
• Updated Weekly Plans to improve workout selection & responses to feedback
• Continual user experience improvements and bug fixes
Do you like Workout Trainer? Rate us with 5 stars and tell your friends why we are your favorite workout app!
• Updated Weekly Plans to improve workout selection & responses to feedback
• Continual user experience improvements and bug fixes
Do you like Workout Trainer? Rate us with 5 stars and tell your friends why we are your favorite workout app!
Security scan
TRUSTED
- Developer signature verified 2026-03-28
- Signature SHA1 FF:44:00:35:87:2E:78:1B:8F:19:2A:03:94:31:8C:28:A8:E8:F5:F9
- File MD5 98681d09cc9181f3ed8708fc63e472de
How to install Workout Trainer AI v12.7 on Android 6.0 Marshmallow+
Takes about 2 minutes. You'll need roughly 96.1 MB of free storage.
- Grab com.skimble.workouts_12715.apk — hit the Download button above (96.1 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 98681d09cc9181f3…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.skimble.workouts_12715.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=Gabriel Vanrenen, OU=Skimble, O=Skimble Inc, L=San Francisco, 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 Workout Trainer AI — tap Open on the install screen, or find the Workout Trainer AI icon in your app drawer (this build targets x86/x86-64/armeabi-v7a/arm64-v8a devices).
Common install errors for Workout Trainer AI
- "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.
- Works on one phone but not another — this build ships x86/x86-64/armeabi-v7a/arm64-v8a native code. Devices with a different CPU will reject it.