Heron's Formula
v1.3 · 1.4 MB · code 3
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File information
UpdatedMar 24, 2020
PublishedDec 6, 2018
Packagecroneycomputing.heronsformula
Versionv1.3 (3)
Size1.4 MB
MD5f3e48a960c3e320441270672a6a3fdec
Min SDK15
Malware scanTRUSTED
Signature SHA151:17:89:4E:DE:14:14:64:C6:F5:5C:29:7B:51:F2:8F:93:23:80:C7
SignerCN=Tyler Croney, OU=Croney Computing, O=Croney Computing, L=Deltona, ST=Florida, C=US
Total downloads1,000
This version1,000
DeveloperCroney Computing
Age ratingEveryone
What's new in v1.3
You can now enter decimal input values
Now displaying the value of S
Layout and ease of use fixes
Fixed various problems with rounding
Now displaying the value of S
Layout and ease of use fixes
Fixed various problems with rounding
Security scan
TRUSTED
- Developer signature verified 2020-03-24
- Scanned for malware 2020-11-15 23:58:21
- Signature SHA1 51:17:89:4E:DE:14:14:64:C6:F5:5C:29:7B:51:F2:8F:93:23:80:C7
- File MD5 f3e48a960c3e320441270672a6a3fdec
How to install Heron's Formula v1.3 on Android API 15+
Takes about 2 minutes. You'll need roughly 1.4 MB of free storage.
- Grab croneycomputing.heronsformula_3.apk — hit the Download button above (1.4 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 f3e48a960c3e3204…. Any difference means the file is corrupted or tampered — delete and re-download.
- Open the APK — tap the download notification, or find croneycomputing.heronsformula_3.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=Tyler Croney, OU=Croney Computing, O=Croney Computing, L=Deltona, ST=Florida, 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 Heron's Formula — tap Open on the install screen, or find the Heron's Formula icon in your app drawer.
Common install errors for Heron's Formula
- "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 15 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.