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Best Trigonometry Help Apps

242+ iOS apps curated and reviewed

4.0 avg rating
18 free apps
Updated August 2026

Looking for free trigonometry help apps? 18 of our 242+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Trigonometry Help Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Trigonometry Help LiteTrigonometry Help LiteFree4.7★ (768)NoYesAug 2026
2Trigonometry HelpTrigonometry Help$1.994.7★ (477)NoYesAug 2026
3Trigonometry Helper - SolverTrigonometry Helper - SolverFree4.2★ (5)NoYesMay 2026
4PhotomathPhotomathFree4.8★ (733K)NoYesAug 2026
5MathMaster: Math Solver & HelpMathMaster: Math Solver & HelpFree4.6★ (12K)YesYesAug 2026
6Trigonometry!Trigonometry!Free2.0★ (4)NoYesMay 2026
7Math.Math.Free4.7★ (1.6K)NoYesAug 2026
8Trigonometry for BeginnersTrigonometry for BeginnersFree4.7★ (10)YesYesAug 2026

Top Picks for Trigonometry Help

Trigonometry Help Lite#1

Trigonometry Help Lite by Armchair Engineering

Triangle Calculator + Workings
Editor's Choice
📚 Education
4.7😊(768 ratings)
FreeIn-App Purchases
Trigonometry Help Lite screenshot 1
Trigonometry Help Lite screenshot 2
Trigonometry Help Lite screenshot 3
Trigonometry Help Lite screenshot 4

This app quickly calculates unknown angles and sides of right-angled triangles. It offers a workings view for detailed solutions, scale drawings, and a formula reference. Input angles in various formats and customize decimal precision.

What We Love

  • 👍 Simple and intuitive user interface
  • 🚀 Quick and fast calculations
  • 💼 Practical for professional use (construction, surveying)
  • ✅ Reliable and doesn't crash

Room to Improve

  • 💰 Unclear upgrade value proposition
  • 📊 Limited decimal place precision in free version
  • 🔍 Insufficient feature differentiation between tiers
Trigonometry Help#2

Trigonometry Help by Armchair Engineering

Triangle Solver + Trig Calc
Strong Contender
🔧 Utilities
4.7😊(477 ratings)
$1.99In-App Purchases
Trigonometry Help screenshot 1
Trigonometry Help screenshot 2
Trigonometry Help screenshot 3
Trigonometry Help screenshot 4
Trigonometry Help screenshot 5

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.

What We Love

  • 🚀 Quick and easy to use
  • 👍 User-friendly interface
  • 🔧 Helpful for tradesmen and professionals
  • ⚙️ Accurate calculations

Room to Improve

  • 🔢 Limited to right-angled triangles only
  • 🔍 Lacks advanced trig functions
  • 🔀 No option to rotate/flip the triangle view

More Trigonometry Help apps to explore

4
Photomath
Photomath
Photomath
Learn math, step-by-step
Free

Scan any math problem to receive instant, step-by-step explanations and accurate solutions. This app breaks down complex problems into manageable steps, helping users understand the 'how' and 'why' of math. It supports a wide range of math topics, from basic arithmetic to advanced calculus.

Scan math problemsStep-by-step explanationsWord problem solver
📚 Education
(733K)
free with in-app purchases
5
MathMaster: Math Solver & Help
MathMaster: Math Solver & Help
MathMaster: Math Solver & Help
Homework Helper & AI Tutor
Free

Solve math problems instantly by taking a photo or entering an equation. Get step-by-step solutions to understand the process and improve your math skills. Covers a wide range of topics from basic arithmetic to calculus.

Camera-based problem solvingStep-by-step solutionsHandwritten and printed math recognition
📚 Education
(12K)
free with in-app purchases
6
Trigonometry!
Trigonometry!
Trigonometry!
trigonometry
Free

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.

Ordered set of basic formulas and theorems172 video lessonsEasy-to-read and understand textbook
📚 Education
(4)
free
7
Math.
Math.
Math.
Math Help with a Tutor
Free

Access a comprehensive library of math courses with video lessons, interactive practice, and self-tests. Get personalized help for all levels, from elementary school to college and standardized test preparation. Offers a 3-day free trial.

Extensive course libraryVideo lessonsInteractive practice
📚 Education
(1.6K)
subscription
8
Trigonometry for Beginners
Trigonometry for Beginners
Trigonometry for Beginners
Trigonometry lesson & exercise
Free

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.

Tailored for beginnersInteractive step-by-step lessonsFun and challenging exercises
📚 Education
(10)
free with in-app purchases
9
Trigonometry
Trigonometry
Trigonometry
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
10
Trigonometry(Math Drills)
Trigonometry(Math Drills)
Trigonometry(Math Drills)
by 郷 田村
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.

Offline learningPythagorean theoremRight triangle trigonometry
📚 Education
(0)
free
11
Math Learner: Learning Game
Math Learner: Learning Game
Math Learner: Learning Game
Fun extra classroom problems
Free

Engage in fun, game-based math practice with thousands of lessons and exercises. This app uses proven methodologies to build foundational skills and accelerate progress, offering an interactive experience with high-accuracy digit recognition. It provides unlimited offline access and is constantly updated with new content for all levels.

Thousands of exercisesGame-based learning strategiesUnlimited online/offline use
📚 Education
(121K)
subscription
12
Trigonometry Toolkit by CS
Trigonometry Toolkit by CS
Trigonometry Toolkit by CS
by ChatStick Company Limited
Free
📚 Education
(0)
13
Trigonometry Unit Circle
Trigonometry Unit Circle
Trigonometry Unit Circle
Your trigonometry playground
Free
📚 Education
(0)
14
Ezy Trigonometry
Ezy Trigonometry
Ezy Trigonometry
by KGiants
Free

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
📚 Education
(44)
free
15
Mental Math Games & Practice
Mental Math Games & Practice
Mental Math Games & Practice
Brain Training, Multiplication
Free

Enhance your number skills with this engaging application designed for brain training and math practice. It offers a variety of exercises and games to improve speed, accuracy, and confidence in calculations. Suitable for students, professionals, and anyone looking to sharpen their mental math abilities.

700+ math exercisesCustomizable quizzesTimed math games
📚 Education
(1.6K)
free with in-app purchases
16
Speed Trigonometry
Speed Trigonometry
Speed 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
📚 Education
(5)
free
17
Trigonometry Formulas
Trigonometry Formulas
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
18
Beautiful Trigonometry
Beautiful Trigonometry
Beautiful Trigonometry
See how trigonometry moves
Free
📚 Education
(0)
19
Trigonometry calc
Trigonometry calc
Trigonometry calc
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
20
Trigonometry 360
Trigonometry 360
Trigonometry 360
Unit Circle, Quiz & Angles
Free
📚 Education
(0)

FAQ about Trigonometry Help

What are the best trigonometry help apps for iPhone?
Trigonometry Help Lite tops our trigonometry help apps ranking as of August 2026, with a 4.7-star average from 768 App Store ratings, and it's free to download.
Yes — 18 of the top trigonometry help apps we rank are free to download, including Trigonometry Help Lite and Trigonometry Helper - Solver.
Trigonometry Help Lite has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 242+ trigonometry help apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
Trigonometry Help Lite is a triangle calculator designed to quickly and easily find unknown angles and sides of any right-angled triangle. It provides accurate solutions, a view of the mathematical workings (with an upgrade), and a scale drawing of the solved triangle.
Key features include accurate solving of right-angled triangles, a workings view to see the math behind solutions, a scale drawing of the triangle, a reference of basic trig formulas, and the ability to enter angles in various formats (radians, decimal degrees, degrees/minutes/seconds) with customizable decimal places.