At a glance
- Latest version
- v2.0.14 (114)
- Updated
- Sep 1, 2026 (1 month ago)
- APK size
- 14.7 MB
- Requires
- Android 7.0+ (API 24)
- CPU support
- x86 32-bit, x86 64-bit, ARM 32-bit, ARM 64-bit
- Category
- Tools (app)
- Permissions
- 10
- Developer contact
- [email protected]
- Privacy
- Developer's privacy policy
About this APK
Rule of Three Calculator is an app by Gastry in the Tools category. It includes native code for x86 32-bit, x86 64-bit, ARM 32-bit and ARM 64-bit, so it runs on practically every phone.
It asks for 10 permissions, none of them sensitive. It asks for the same permissions as version 2.0.13. The app offers in-app purchases through Google Play and can read the advertising ID that ad and analytics services use.
What's new in v2.0.14
Description
From the listing uploaded by “appupdater”.
Version history
3 versions are listed, going back to v2.0.11.
Security & authenticity
Signing certificate
- Signature matches the Google Play version Checked by the source store on Sep 1, 2026.
- Certificate issued to “Juan Mauricio Piano Monz?” This is the certificate of the Google Play version.
- Same certificate as the 2 other versions checked
Store checks and file details
- Developer signature verified Sep 1, 2026
- Validated against Google Play Sep 1, 2026
- Signed byCN=Juan Mauricio Piano Monz?, L=Sollana, ST=Valencia, C=ES
- Signing certificate (SHA-1)EA:FC:E5:39:27:6C:CF:C5:2E:E9:93:16:70:2C:00:75:A5:FA:98:96
- File MD57f793b2517082a0cf16d7daad00d9e17
- Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020
Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures (2 other versions compared). AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.
Permissions (10)
Rule of Three Calculator requests 10 permissions, none of them sensitive.
- Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
- Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
- Access adservices topics android.permission.ACCESS_ADSERVICES_TOPICS
- Advertising ID com.google.android.gms.permission.AD_ID
- Full network access android.permission.INTERNET
- In-app purchases (Google Play Billing) com.android.vending.BILLING
- Internal broadcast protection (app-defined) com.aplicaciones.gastry.regladetres.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Prevent the device from sleeping android.permission.WAKE_LOCK
- Run foreground services android.permission.FOREGROUND_SERVICE
- View network connections android.permission.ACCESS_NETWORK_STATE
Required hardware & features
- Basic touch input android.hardware.faketouch
Rule of Three Calculator APK: questions and answers
Can I install this APK over the version I already have?
Yes, if your installed copy is older. It is signed like the Google Play version, so Android installs it as an update and keeps your data.
Is Rule of Three Calculator free?
The APK is free to download, but the app offers in-app purchases through Google Play.
Is the Rule of Three Calculator APK safe?
No one can promise that a file is safe, but some things can be checked. The source store rates this file Trusted. Its signature matches the Google Play version. It is signed with the same certificate as the 2 other versions checked. After downloading, check that the file's MD5 is 7f793b2517082a0cf16d7daad00d9e17.
