Matrix Determinant Calculator
v25.9.2 · 539.7 KB · code 71
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File information
UpdatedSep 29, 2025
PublishedJan 24, 2020
Packagean.DeterminantX
Versionv25.9.2 (71)
Size539.7 KB
MD59084d41dfae650780b97f1ac40ea87e9
Min SDK21
Malware scanTRUSTED
Signature SHA175:C9:81:67:02:93:40:62:AE:2C:C2:9B:5F:B5:47:43:3B:A7:F0:52
SignerCN=Georg Kiefer, L=Koblenz, ST=Germany, C=DE
Total downloads100,000
This version100,000
DeveloperGK Apps
Age ratingEveryone
What's new in v25.9.2
- Updated to target Android 15 (API level 36) for improved compatibility and future support.
- Minor technical improvements and optimizations.
- Minor technical improvements and optimizations.
Security scan
TRUSTED
- Developer signature verified 2025-09-29
- Signature SHA1 75:C9:81:67:02:93:40:62:AE:2C:C2:9B:5F:B5:47:43:3B:A7:F0:52
- File MD5 9084d41dfae650780b97f1ac40ea87e9
How to install Matrix Determinant Calculator v25.9.2 on Android 5.0 Lollipop+
Takes about 2 minutes. You'll need roughly 539.7 KB of free storage.
- Grab an.DeterminantX_71.apk — hit the Download button above (539.7 KB). 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 9084d41dfae65078…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find an.DeterminantX_71.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=Georg Kiefer, L=Koblenz, ST=Germany, C=DE. 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 Matrix Determinant Calculator — tap Open on the install screen, or find the Matrix Determinant Calculator icon in your app drawer.
Common install errors for Matrix Determinant Calculator
- "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.