Best Trigonometry Ratio Apps

247+ iOS apps curated and reviewed

3.5 avg rating

16 free apps

Updated September 2026

Looking for free trigonometry ratio apps? 16 of our 247+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Trigonometry Ratio Apps (September 2026)

#	App	Price	Rating	Ads	In-App Purchases	Updated
1	Trigonometry!	Free	2.0★ (4)	No	Yes	May 2026
2	Trigonometry(Math Drills)	Free	—	No	No	Aug 2026
3	Trigonometry for Beginners	Free	4.7★ (10)	Yes	Yes	Sep 2026
4	Trigonometry Toolkit by CS	Free	—	—	No	Jul 2026
5	Ezy Trigonometry	Free	2.5★ (44)	No	No	May 2026
6	Trigonometry	Free	1.0★ (4)	No	No	May 2026
7	Trigonometry Unit Circle	Free	—	—	No	May 2026
8	Trigonometry 360	Free	—	No	No	Aug 2026

Top Picks for Trigonometry Ratio

Trigonometry! by AppCrab

trigonometry

Editor's Choice

📚 Education

2.0(4 ratings)

FreeIn-App Purchases

Master trigonometry with this comprehensive mobile helper. It offers a textbook, visual explanations, and video lessons covering all essential formulas and theorems. Prepare for your exams with detailed content and easy-to-understand explanations.

Trigonometry(Math Drills) by 郷田村

Strong Contender

📚 Education

0.0(0 ratings)

Free

Master trigonometry concepts offline with this educational app. It covers essential topics like the Pythagorean theorem, right triangles, special angles, and shape measurements. Challenge yourself to improve your rank and test your knowledge.

Trigonometry for Beginners by Aswian Editri Sutriandi

Trigonometry lesson & exercise

Worth Considering

📚 Education

4.7(10 ratings)

FreeAdsIn-App Purchases

Master trigonometry with interactive lessons and exercises designed for beginners. This app offers step-by-step explanations, fun challenges, and instant feedback to build your confidence from basic angles to word problems.

More Trigonometry Ratio apps to explore

Trigonometry Toolkit by CS

by ChatStick Company Limited

This app serves as a comprehensive trigonometry learning tool for students. It features an interactive unit circle, a table of exact trigonometric ratios, and a handbook of formulas to aid understanding.

Interactive unit circleExact trigonometric ratios tableHandbook of trigonometric formulas

Trigonometry for beginners

Free

Learn basic trigonometric formulas through interactive theory and fun games. Earn points to progress through levels and master the concepts.

Memorize basic trigonometric formulasInteractive theory sectionFour included games

📚 Education

(4)

free

Trigonometry Unit Circle

Your trigonometry playground

Unit Circle, Quiz & Angles

Free

📚 Education

(0)

Trigonometry Helper - Solver

Geometry Homework Scanner Help

Free

Solve trigonometry problems instantly by uploading a photo. Get step-by-step explanations for a deeper understanding. Review past solutions with history tracking.

Instant photo-based problem solvingStep-by-step solution explanationsHistory tracking of past problems

🔧 Utilities

(5)

subscription

Trigonometry Formulas

All Trigonometry Formulas

$0.99

Access a comprehensive collection of trigonometry formulas, including ratios, functions, standard angle values, and identities. This app covers basic to advanced topics like inverse circular functions and properties of triangles, serving as a handy reference for students and enthusiasts.

Trigonometric Ratios and FunctionsBasic Trigonometric FormulasStandard Angle Values

📚 Education

(2)

paid

Trigonometry Identities Proofs

Solving Trigonometry Proofs

$0.99

Learn and practice trigonometric identity proofs with step-by-step solutions. Compare your work to the app's detailed explanations, revealing each step individually.

42 trigonometric identity proofsStep-by-step solution revealCompare your work to app solutions

Triangle Solver + Trig Calc

$1.99

This app helps you quickly solve for unknown angles and sides of right-angled triangles. It provides a workings view for understanding the math, a scale drawing of the triangle, and a reference for basic trigonometric formulas. You can input angles in various formats and choose your desired decimal precision.

Solve right-angled trianglesWorkings view for solutionsScale drawing of solved triangle

🔧 Utilities

(477)

free with in-app purchases

Trigonometry Practice

MCQ Practice for Trigonometry

Memorize the Unit Circle

Free

This app helps students quickly memorize the unit circle. It quizzes users on sine, cosine, tangent, and inverse trigonometric values for key angles. Developed by students for students, it's ideal for precalculus learners.

Unit circle memorizationQuizzes on trig valuesFocus on key angles

Calculations on right triangle

Free

Calculate side lengths and angles in right-angled triangles using Pythagorean theorem and trigonometry functions. Learn basic trigonometry concepts. An optional premium version removes ads and unlocks a general triangle calculator.

Calculate side lengthsCalculate anglesPythagorean Theorem

📚 Education

(2)

free with in-app purchases

Touch Trigonometry

Learn trigonometry with touch

Free

📚 Education

(0)

Angle Finder Calculator

Trigonometry made simple

Free

This geometry tool simplifies trigonometry and triangle calculations. It provides quick and accurate results for various measurements, including angles, sides, area, and advanced geometric properties. Ideal for students, professionals, and anyone needing precise calculations.

Triangle angle calculationSide length and hypotenuse calculationArea and perimeter calculation

Pythagoras,Derivatives,Volume

Free

This app simplifies complex math concepts with a wide range of calculation tools. It covers geometry, trigonometry, derivatives, and more, making math accessible for users worldwide. Easily perform calculations for triangles, volumes, areas, and fractions.

Rectangle triangle calculationsPythagorean theoremTrigonometry functions

📚 Education

(11)

free with in-app purchases

Trigonometric Time Attack

Master TrigonometricFunctions.

Free

📚 Education

(0)

FAQ about Trigonometry Ratio

What are the best trigonometry ratio apps for iPhone?

Trigonometry! tops our trigonometry ratio apps ranking as of September 2026, with a 2.0-star average from 4 App Store ratings, and it's free to download.

Are there free trigonometry ratio apps for iPhone?

Yes — 16 of the top trigonometry ratio apps we rank are free to download, including Trigonometry! and Trigonometry(Math Drills).

Does Trigonometry! have ads or in-app purchases?

Trigonometry! has no ads and offers in-app purchases, according to its App Store listing as of September 2026.

How many trigonometry ratio apps are on the App Store?

We track 247+ trigonometry ratio apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.

What topics does Trigonometry! cover?

Trigonometry! covers a wide range of topics including Right Triangle Trigonometry, Angles, Trigonometric Functions, General Triangles, Identities, Radian Measure, Graphing, and Complex Numbers.

How does Trigonometry! help with learning?

Trigonometry! provides a textbook, ordered sets of basic formulas with explanations, and 172 video lessons to aid in understanding and reviewing concepts.