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Best Trigonometry Help Apps

244+ iOS apps curated and reviewed

4.0 avg rating
18 free apps
Updated October 2026

Looking for free trigonometry help apps? 18 of our 244+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Trigonometry Help Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Trigonometry HelpTrigonometry Help$1.994.7★ (477)NoYesOct 2026
2Trigonometry Help LiteTrigonometry Help LiteFree4.7★ (768)NoYesOct 2026
3Trigonometry Helper - SolverTrigonometry Helper - SolverFree4.2★ (5)NoYesMay 2026
4PhotomathPhotomathFree4.8★ (733K)NoYesOct 2026
5MathMaster: Math Solver & HelpMathMaster: Math Solver & HelpFree4.6★ (12K)YesYesOct 2026
6Trigonometry Toolkit by CSTrigonometry Toolkit by CSFree——NoJul 2026
7SportCitySportCityFree4.9★ (260)NoNoOct 2026
8Beautiful TrigonometryBeautiful TrigonometryFree—NoYesMay 2026

Top Picks for Trigonometry Help

Trigonometry Help#1

Trigonometry Help by Armchair Engineering

Triangle Solver + Trig Calc
Editor's Choice
🔧 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
  • 🔍 Convenient for on-site use

Room to Improve

  • 🔢 Limited to right-angled triangles only
  • 🔍 Lacks advanced trig functions
  • 🔀 No option to rotate/flip the triangle view
Trigonometry Help Lite#2

Trigonometry Help Lite by Armchair Engineering

Triangle Calculator + Workings
Strong Contender
📚 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
  • 📚 Helpful for learning trigonometry
  • 🎯 Straight-to-the-point functionality
  • ✔️ Accurate results for basic calculations

Room to Improve

  • 💰 Unclear upgrade value proposition
  • 📊 Limited decimal place precision in free version
  • 🔍 Insufficient feature differentiation between tiers
  • ⚠️ Calculation accuracy issues reported

More Trigonometry Help apps to explore

FAQ about Trigonometry Help

What are the best trigonometry help apps for iPhone?
Trigonometry Help tops our trigonometry help apps ranking as of October 2026, with a 4.7-star average from 477 App Store ratings, and it's priced at $1.99.
Yes — 18 of the top trigonometry help apps we rank are free to download, including Trigonometry Help Lite and Trigonometry Helper - Solver.
Trigonometry Help has no ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 244+ trigonometry help apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.