Best Proportion Ratio Solver Apps

248+ iOS apps curated and reviewed

2.8 avg rating
17 free apps
Updated July 2026

The best proportion ratio solver apps on iPhone average 2.8★ across 248+ titles — we've ranked them by what real users actually keep on their phones. Updated July 2026.

Compare top Proportion Ratio Solver Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Ratio Solver: ProportionsRatio Solver: ProportionsFreeNoNoMay 2026
2Proportion Ratio SolverProportion Ratio SolverFreeYesNoMay 2026
3Ratio Calculator - ProportionRatio Calculator - Proportion$4.99NoNoMay 2026
4Proportion_CalculatorProportion_CalculatorFree2.0★ (2)NoNoMay 2026
5Proportion SolverProportion SolverFree3.0★ (2)YesNoJul 2026
6Ratio & Proportion CalculatorRatio & Proportion CalculatorFree4.7★ (16)NoYesJul 2026
7Ratio SimplifierRatio SimplifierFreeNoYesMay 2026
8Ratio Calculator ToolRatio Calculator ToolFree3.3★ (12)NoYesJul 2026

Top Picks for Proportion Ratio Solver

More Proportion Ratio Solver apps to explore

4
Proportion_Calculator
Proportion_Calculator
Proportion_Calculator
Proportion Calculator
Free

This app helps you find the unknown value in proportions by showing step-by-step calculations. It's useful for various applications, from cooking to science, and offers a simple, fast, and visually appealing way to solve proportion problems.

Solves for unknown values in proportionsProvides labeled step-by-step explanationsFast calculation speed
📚 Education
(2)
free
5
Proportion Solver
Proportion Solver
Proportion Solver
Proportion solver
Free

This app provides step-by-step solutions for mathematical proportions. It's designed for students and math enthusiasts to learn, practice, and simplify calculations with an intuitive interface and theoretical resources.

Automatic proportion solving with stepsTheory cards for understandingAdvanced math keyboard
📚 Education
(2)
ad-supported
6
Ratio & Proportion Calculator
Ratio & Proportion Calculator
Ratio & Proportion Calculator
Complete solution, all steps
Free

Easily solve proportion problems by entering three of the four variables. This app provides detailed step-by-step solutions and saves all your calculations in a history for later review. Fractions, decimals, and constants are supported.

Solve proportions with 3 variablesDetailed solution stepsCalculation history
📚 Education
(16)
free with in-app purchases
7
Ratio Simplifier
Ratio Simplifier
Ratio Simplifier
GCD Calculator & Simplifier
Free
🔧 Utilities
(0)
8
Ratio Calculator Tool
Ratio Calculator Tool
Ratio Calculator Tool
Ratio calculating companion
Free

This utility app specializes in calculating proportions, solving for an unknown value in direct and inverse ratio equations. It handles scenarios like price increases and speed decreases, offering a simple yet effective tool for proportion-based problems.

Direct proportion calculationsInverse proportion calculationsSolves for unknown values in ratios
🔧 Utilities
(12)
free
9
Proportions App
Proportions App
Proportions App
by Paolo Montalto
Free

This utility app quickly calculates unknown values in everyday ratios. It features a clean interface for easy setup and instant results, making it ideal for school, work, or daily tasks.

Solve proportions instantlyQuick setup for unknown valuesClean and minimal interface
🔧 Utilities
(1)
free
10
Ratio Calculator Pro
Ratio Calculator Pro
Ratio Calculator Pro
X:Y
Free
🔧 Utilities
(0)
11
Ratio Calculator!
Ratio Calculator!
Ratio Calculator!
Create & Scale Custom Ratios
$0.99
🔧 Utilities
(0)
12
Rule of Three Calculator
Rule of Three Calculator
Rule of Three Calculator
by Saran Dumronggittigule
Free

This utility app helps you solve problems involving ratios and proportions. It calculates an unknown number based on the relationship between two other known numbers.

Ratio calculationProportion solvingFinds unknown numbers
🔧 Utilities
(4)
free
13
Systems of equations solver
Systems of equations solver
Systems of equations solver
2x2 and 3x3 System Solver
$3.99

This calculator helps solve systems of linear equations with two or three variables. It provides step-by-step solutions, supports various coefficient types, and displays results in both decimal and fractional formats. Users can save and email their equation history.

Solves 2x2 and 3x3 systemsStep-by-step solutionsInteger, fractional, and decimal coefficients
📚 Education
(1)
paid
14
Photo Math Solver
Photo Math Solver
Photo Math Solver
Math problem solver by camera
Free

Instantly solve math problems by taking a picture or typing them in. Get detailed, step-by-step explanations for a wide range of math topics, from basic algebra to advanced calculus. Features include AI-powered camera solving, handwritten problem support, equation graphing, and a scientific calculator.

AI-powered math cameraStep-by-step solutionsHandwritten problem solving
📚 Education
(3)
free with in-app purchases
15
Simple ratio calculator
Simple ratio calculator
Simple ratio calculator
Formula Saving Functionality
Free

Easily calculate and save frequently used ratios with a clean, user-friendly interface. Ideal for scientific experiments, cooking, and design projects, this tool simplifies proportion management for enhanced learning and hobbies.

User-friendly, simple UIFormula saving functionalityRatio calculation for experiments
📊 Productivity
(0)
ad-supported
16
Ratio Calculation
Ratio Calculation
Ratio Calculation
by Tomohiko Akamine
Free
📊 Productivity
(0)
17
Ratio & Text Calculator
Ratio & Text Calculator
Ratio & Text Calculator
for proportional expressions
Free

This utility app simplifies calculations for proportional expressions and mathematical formulas. It offers a dedicated ratio calculator for recipes and proportions, and a text calculator that accepts keyboard input or Apple Pencil for complex equations.

Ratio calculator for proportional expressionsAddition ratio calculationsText calculator for mathematical expressions
🔧 Utilities
(4)
free
18
Math Problem Solver Generator
Math Problem Solver Generator
Math Problem Solver Generator
The best Math Problem Solver
Free
🔧 Utilities
(0)
19
Ratio Visualizer: Golden Ratio
Ratio Visualizer: Golden Ratio
Ratio Visualizer: Golden Ratio
Design Tool & Ratio Calculator
Free
🎨 Graphics & Design
(0)
20
MathPal AI - Math Solver Tutor
MathPal AI - Math Solver Tutor
MathPal AI - Math Solver Tutor
AI notes, flashcards, quizzes
Free
📚 Education
(0)

FAQ about Proportion Ratio Solver

Are there free proportion ratio solver apps for iPhone?
Yes — 17 of the top proportion ratio solver apps we rank are free to download, including Ratio Solver: Proportions and Proportion Ratio Solver.
Ratio Solver: Proportions has no ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 248+ proportion ratio solver apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.