Rule of Three Calculator
Solve proportions in seconds with local history and a clear interface.
Gastry · com.aplicaciones.gastry.regladetres
UpdatedApr 17, 2026
PublishedMar 27, 2026
Packagecom.aplicaciones.gastry.regladetres
MD5f5df375fbe3949c3eac90c8fd2422f99
SHA1 (signer)EA:FC:E5:39:27:6C:CF:C5:2E:E9:93:16:70:2C:00:75:A5:FA:98:96
Signed byCN=Juan Mauricio Piano Monz?, L=Sollana, ST=Valencia, C=ES
Architecturesx86, x86-64, armeabi-v7a, arm64-v8a
Malware scanTRUSTED
Contact[email protected]
Privacy policyView
What's new
Added support for inverse rule of three calculations.
Description
Rule of Three Calculator helps you solve direct proportions quickly, clearly, and comfortably on your phone.
Enter three values and get the fourth result instantly. The app keeps the classic rule-of-three layout in a clean 2x2 grid, so each calculation is easy to understand at a glance and convenient to use for both quick checks and repeated tasks.
It is designed for people who want simple calculations without extra steps or unnecessary clutter. It can be useful for study, shopping, cooking, work, measurements, percentages, conversions, and everyday math.
Main features:
- Fast direct proportion calculations
- Clean and easy-to-read design
- Instant result display
- Local history saved on the device
- Reuse previous calculations
- Delete individual entries or clear all history
- Simple use with no account or sign-in
Your history stays on your device, so you can review recent calculations and remove them whenever you want.
Enter three values and get the fourth result instantly. The app keeps the classic rule-of-three layout in a clean 2x2 grid, so each calculation is easy to understand at a glance and convenient to use for both quick checks and repeated tasks.
It is designed for people who want simple calculations without extra steps or unnecessary clutter. It can be useful for study, shopping, cooking, work, measurements, percentages, conversions, and everyday math.
Main features:
- Fast direct proportion calculations
- Clean and easy-to-read design
- Instant result display
- Local history saved on the device
- Reuse previous calculations
- Delete individual entries or clear all history
- Simple use with no account or sign-in
Your history stays on your device, so you can review recent calculations and remove them whenever you want.
Required features
- Faketouch android.hardware.faketouch
Permissions (10)
Rule of Three Calculator requests the following Android permissions:
- 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
- Access Network State android.permission.ACCESS_NETWORK_STATE
- Foreground Service android.permission.FOREGROUND_SERVICE
- Internet android.permission.INTERNET
- Wake Lock android.permission.WAKE_LOCK
- Com Android Vending Billing com.android.vending.BILLING
- Com Aplicaciones Gastry Regladetres Dynamic Receiver Not Exported Permission com.aplicaciones.gastry.regladetres.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
- Gms Permission Ad Id com.google.android.gms.permission.AD_ID
