Trigonometry Calculator
v1.5 · 2.7 MB · code 39
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File information
UpdatedSep 13, 2025
PublishedSep 13, 2025
Packagehorton.b.com.trigonometrycalculator
Versionv1.5 (39)
Size2.7 MB
MD56691f145e3dfc6e5623cd8771f821ddd
Min SDK14
Malware scanTRUSTED
Signature SHA1F1:16:8E:C5:E2:9E:C5:50:25:C3:5F:AD:5C:C8:8F:65:66:95:06:6D
SignerCN=Ben Horton, L=Huntingdon, ST=Cambridgeshire, C=GB
Total downloads1,000,000
This version1,000,000
DeveloperHoritech
Age ratingEveryone
What's new in v1.5
Welcome to the new Trigonometry Calculator!
• Fresh, modern design with theme selection
• More control over calculations
• Now includes a Scalene Triangle Calculator
• Subscribe to unlock advanced features and remove ads
• Fresh, modern design with theme selection
• More control over calculations
• Now includes a Scalene Triangle Calculator
• Subscribe to unlock advanced features and remove ads
Security scan
TRUSTED
- Developer signature verified 2018-05-24
- Scanned for malware 2020-11-07 15:54:55
- Signature SHA1 F1:16:8E:C5:E2:9E:C5:50:25:C3:5F:AD:5C:C8:8F:65:66:95:06:6D
- File MD5 6691f145e3dfc6e5623cd8771f821ddd
How to install Trigonometry Calculator v1.5 on Android API 14+
Takes about 2 minutes. You'll need roughly 2.7 MB of free storage.
- Grab horton.b.com.trigonometrycalculator_39.apk — hit the Download button above (2.7 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 6691f145e3dfc6e5…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find horton.b.com.trigonometrycalculator_39.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=Ben Horton, L=Huntingdon, ST=Cambridgeshire, C=GB. 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 Trigonometry Calculator — tap Open on the install screen, or find the Trigonometry Calculator icon in your app drawer.
Common install errors for Trigonometry 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 API 14 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.