Matrix Calculator (Matrices)
v3.2 · 7.3 MB · code 31
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File information
UpdatedJan 30, 2026
PublishedMar 28, 2021
Packagecalculator.matrix.matcalc
Versionv3.2 (31)
Size7.3 MB
MD588c7d288233e9b9eef19a1b3f6c6bb4e
Min SDK24
Malware scanTRUSTED
Signature SHA13D:9A:F4:06:D2:19:DE:72:D6:C6:3C:E8:C4:84:FF:B5:F2:88:64:3C
SignerCN=Pantelis Bouboulis, OU=ArchSoft Mobile, O=ArchSoft, L=Pireas, ST=Greece, C=GR
Total downloads100,000
This version100,000
DeveloperSTEMath
Age ratingEveryone
Security scan
TRUSTED
- Developer signature verified 2026-01-30
- Signature SHA1 3D:9A:F4:06:D2:19:DE:72:D6:C6:3C:E8:C4:84:FF:B5:F2:88:64:3C
- File MD5 88c7d288233e9b9eef19a1b3f6c6bb4e
How to install Matrix Calculator (Matrices) v3.2 on Android 7.0 Nougat+
Takes about 2 minutes. You'll need roughly 7.3 MB of free storage.
- Grab calculator.matrix.matcalc_31.apk — hit the Download button above (7.3 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 88c7d288233e9b9e…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find calculator.matrix.matcalc_31.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=Pantelis Bouboulis, OU=ArchSoft Mobile, O=ArchSoft, L=Pireas, ST=Greece, C=GR. 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 Calculator (Matrices) — tap Open on the install screen, or find the Matrix Calculator (Matrices) icon in your app drawer.
Common install errors for Matrix Calculator (Matrices)
- "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 7.0 Nougat 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.