Rectangle Calculator
v1.3 · 1.5 MB · code 7
Verify you're human
Solve this to start the download.
File information
UpdatedMay 19, 2024
PublishedOct 31, 2020
Packagecom.sis.rectanglecalc
Versionv1.3 (7)
Size1.5 MB
MD59bbe8acdb47fcc9fa5131c6e98937f5e
Min SDK14
Malware scanTRUSTED
Signature SHA12A:34:06:1C:BC:2A:82:9A:25:0A:E7:14:64:BE:A2:8B:20:99:84:8A
SignerCN=Sparkle Solutions, OU=Sparkle, O=Sparkle, L=Singapore, ST=Singapore, C=SG
Total downloads5,000
This version5,000
DeveloperSparkle Solutions
Age ratingEveryone
What's new in v1.3
Options to limit and extend decimal places.
Security scan
TRUSTED
- Developer signature verified 2024-05-19
- Signature SHA1 2A:34:06:1C:BC:2A:82:9A:25:0A:E7:14:64:BE:A2:8B:20:99:84:8A
- File MD5 9bbe8acdb47fcc9fa5131c6e98937f5e
How to install Rectangle Calculator v1.3 on Android API 14+
Takes about 2 minutes. You'll need roughly 1.5 MB of free storage.
- Grab com.sis.rectanglecalc_7.apk — hit the Download button above (1.5 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 9bbe8acdb47fcc9f…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find com.sis.rectanglecalc_7.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=Sparkle Solutions, OU=Sparkle, O=Sparkle, L=Singapore, ST=Singapore, C=SG. 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 Rectangle Calculator — tap Open on the install screen, or find the Rectangle Calculator icon in your app drawer.
Common install errors for Rectangle 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.