Best Triangle Right Apps

142+ iOS apps curated and reviewed

4.1 avg rating
16 free apps
Updated November 2026

The best triangle right apps on iPhone average 4.1★ across 142+ titles — we've ranked them by what real users actually keep on their phones. Updated November 2026.

Compare top Triangle Right Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Right AngleRight AngleFree3.9★ (30)NoYesNov 2026
2Right Triangle - CalculatorRight Triangle - CalculatorFree3.8★ (6)NoYesNov 2026
3Triangle Solver Free - Geometry CalculatorTriangle Solver Free - Geometry CalculatorFree3.6★ (40)NoYesMay 2026
4Triangle SolverTriangle SolverFree4.2★ (31)NoNoOct 2026
5Triangle Calculator PythagorasTriangle Calculator PythagorasFree4.0★ (1)YesYesOct 2026
6Triangle Calc ATriangle Calc A$0.99—NoNoOct 2026
7AngleRightAngleRightFree—NoNoNov 2026
8Solve Right Triangle ProSolve Right Triangle Pro$2.993.7★ (3)NoNoOct 2026

Top Picks for Triangle Right

Right Angle#1

Right Angle by Jerry Mayers

Triangles, trapezoids, circles
Editor's Choice
📊 Productivity
3.9😞(30 ratings)
FreeIn-App Purchases
Right Angle screenshot 1
Right Angle screenshot 2
Right Angle screenshot 3
Right Angle screenshot 4
Right Angle screenshot 5
Right Angle screenshot 6

This app provides precise calculations for geometric shapes like triangles, trapezoids, and circles. It offers multiple angle and length formats, a custom keyboard for job site use, and helpful error messages. Designed for professionals in construction, engineering, and trades.

What We Love

  • 👍 Easy to use
  • 🚀 Saves time
  • 🛠️ Useful for construction/trades
  • 📐 Accurate calculations
  • 💡 Unique functionality (historically)
  • 💰 Good value (historically)
  • ✅ Works flawlessly (historically)
  • 🔧 Helpful for various calculations (roofing, joinery, etc.)
  • 📱 Handy on the go
  • 🌟 Long-term user satisfaction (historically)

Room to Improve

  • 🐛 Recent updates removed key features
  • 🐛 In-app purchases required for previously free features
  • 🐛 Loss of purchase after update
  • 🐛 App now requires payment for features
  • 🐛 Misleading free app description
  • 🐛 Removed fraction support
  • 🐛 Removed feet and inches support
  • 🐛 Only provides one angle now (previously two)
  • 🐛 Keyboard hides input fields
  • 🐛 Inaccurate calculations (historically)
  • 🐛 Not worth the in-app purchases (historically)
  • 🐛 Missing metric units (historically)
  • 🐛 Rounds angles, generating wrong answers (historically)
  • 🐛 Crashes after startup (historically)
  • 🐛 Update issues leading to crashes (historically)
Right Triangle - Calculator#2
3.8(6 ratings)
FreeIn-App Purchases
Right Triangle - Calculator screenshot 1
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Right Triangle - Calculator screenshot 3
Right Triangle - Calculator screenshot 4
Right Triangle - Calculator screenshot 5
Right Triangle - Calculator screenshot 6

Instantly solve geometry homework and prepare for exams with this free calculator. It provides complete step-by-step solutions for all triangle quantities, including legs, hypotenuse, height, angles, perimeter, and area. Access learning videos and manage your solutions.

More Triangle Right apps to explore

FAQ about Triangle Right

What are the best triangle right apps for iPhone?
Right Angle tops our triangle right apps ranking as of November 2026, with a 3.9-star average from 30 App Store ratings, and it's free to download.
Yes — 16 of the top triangle right apps we rank are free to download, including Right Angle and Right Triangle - Calculator.
Right Angle has no ads and offers in-app purchases, according to its App Store listing as of November 2026.
We track 142+ triangle right apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.