Rule of Three is the simplest and most intuitive way to learn and calculate proportions.
Whether you're a student, a teacher, or someone who needs quick answers for everyday situations, this app helps you understand and apply the Rule of Three with clarity and confidence.
β What is the Rule of Three?
The Rule of Three is an easy method used to solve proportional problems. If you know three values in a proportion, the app helps you instantly find the fourth. Itβs useful for math learning, financial calculations, recipe adjustments, unit conversions, and everyday reasoning.
π’ Key Features
β Easy Calculations
Enter the known values, tap βCalculate,β and get your result immediately.
No confusion, no unnecessary steps.
β Learn the Concept
A dedicated Learn section explains the Rule of Three in a fun, simple, and visual way.
You'll discover:
- What the Rule of Three is
- Common real-life examples
- How to calculate step by step
- Interesting history and math facts
Suitable for all ages and skill levels.
β Visual Proportion Display
See your proportion represented with a colorful, easy-to-understand bar chart.
Perfect for visual learners, teachers, and students.
β Shareable Results
Generate a clean, beautiful image of your calculation to share with friends, classmates, or coworkers.
Great for homework, reports, or quick communication.
(Images are created locally and not stored by the app.)
β Designed for Everyone
- Kids
- Adults
- Students
-Teachers
-Professionals
- Anyone needing quick proportional reasoning
The interface is clean, friendly, and suitable both for quick calculations and for learning.
π Where is the Rule of Three Used?
- School math problems
- Percentage changes
- Recipe scaling
- Travel and speed planning
- Financial comparisons
- Discounts and prices
- Unit conversions
- Productivity and work planning
If it involves proportions, this app makes it simple.
π Private by Design
The app does not collect personal data, does not track you, and does not require an internet connection to function.
Everything happens on your device.
π― Why You'll Love It
- Fast and accurate
- Great for learning or teaching
- Helps build intuitive mathematical thinking
- Clean design
- No distractions
- Works fully offline
Master proportions the easy way.
Download Rule of Three and make proportional reasoning simple, visual, and fun.