Best Right Triangle Solver Apps

250+ iOS apps curated and reviewed

3.8 avg rating
14 free apps
Updated September 2026

Trig Solver is the household name in right triangle solver, but it's far from the only option. We track 250+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Right Triangle Solver Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Trig SolverTrig SolverFree4.3★ (78)NoNoAug 2026
2Triangle Solver Free - Geometry CalculatorTriangle Solver Free - Geometry CalculatorFree3.6★ (40)NoYesMay 2026
3Triangle SolverTriangle SolverFree4.2★ (30)NoNoAug 2026
4Triangle Solver for iOS 7Triangle Solver for iOS 7Free4.4★ (5)NoNoMay 2026
5TriSolver - Triangle SolverTriSolver - Triangle SolverFree1.0★ (1)NoYesAug 2026
6Trigonometry MasterTrigonometry Master$12.992.5★ (2)NoNoAug 2026
7Right Triangle - CalculatorRight Triangle - CalculatorFree3.8★ (6)NoYesAug 2026
8Triangle HelpTriangle HelpFree5.0★ (1)NoNoMay 2026

Top Picks for Right Triangle Solver

4.3😐(78 ratings)
Free
Trig Solver screenshot 1
Trig Solver screenshot 2

This application calculates unknown sides and angles of both regular and right triangles. It supports various input combinations, including two sides and an angle, two angles and a side, three sides, or two sides and an angle for right triangles.

What We Love

  • 👍 Simple and easy to use
  • 🚀 Fast calculations
  • ✅ Accurate results (for many users)
  • 💡 Useful for schoolwork
  • 🛠️ Great for job site/machinists
  • 💯 Saves time
  • 🌟 Life saver for grades

Room to Improve

  • 🐛 Inaccurate results reported
  • 💸 Ads are present and distracting
  • 📉 Rounding issues
  • 🚫 No option to remove ads (for some)
  • ⚠️ App stopped working after updates
  • 😵‍💫 Input issues (dark mode, hidden buttons)
  • 🤔 Limited decimal places
  • ❌ Not for serious/precise engineering
4.2😐(31 ratings)
Free
Triangle Solver screenshot 1
Triangle Solver screenshot 2
Triangle Solver screenshot 3
Triangle Solver screenshot 4

Calculate unknown sides and angles of a triangle with ease. Supports various input combinations, including two angles and one side, two sides and one angle, or three sides.

What We Love

  • 👍 Simple and easy to use
  • 📐 Accurate calculations
  • ✨ Ad-free experience
  • 📐 Dynamic triangle diagram
  • 🚀 Quick results
  • 👍 Very helpful for work/school
  • 💡 Free of charge
  • 👍 Clear interface
  • 👍 Good graphics
  • 👍 Solves for any triangle

Room to Improve

  • 🐛 Crashes frequently
  • 🐛 Stopped working on iOS
  • 🐛 Input fields not clear
  • 🐛 Ads can be intrusive
  • 🐛 Difficult to use with irrational numbers
  • 🐛 Tiny buttons
  • 🐛 Doesn't allow value entry
  • 🐛 UI is broken
  • 🐛 Only accepts integers
  • 🐛 Ad banner introduced in update

More Right Triangle Solver apps to explore

FAQ about Right Triangle Solver

What are the best right triangle solver apps for iPhone?
Trig Solver tops our right triangle solver apps ranking as of September 2026, with a 4.3-star average from 78 App Store ratings, and it's free to download.
Yes — 14 of the top right triangle solver apps we rank are free to download, including Trig Solver and Triangle Solver Free - Geometry Calculator.
Trig Solver has no ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 250+ right triangle solver apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.
This app can calculate unknown sides and angles for both regular and right triangles. It offers solutions based on different combinations of known sides and angles.
For a regular triangle, you can input two sides and an angle, two angles and a side, or three sides. The app will then calculate the remaining values.