Comparison

Trigonometry Calc vs Right Triangle

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Trigonometry Calc

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.

Highlights
  • Calculate side lengths
  • Calculate angles
  • Pythagorean Theorem
  • Trigonometry functions
  • Learn simple trigonometry
  • General triangle calculator (premium)
Features
Read full description

Solve right triangles in seconds. Enter two values and Trigonometry Calc finds the missing side or angle. CALCULATE SIDES • Find side a, b or the hypotenuse c with the Pythagorean theorem • Clear diagrams show which side you are solving for CALCULATE ANGLES • Find angle A from two sides using sine, cosine or tangent • Results in degrees ANY TRIANGLE – PREMIUM • Solve triangles without a right angle using SAS, SSA and ASA • See all missing sides and angles at once LEARN THE THEORY • The unit circle with sin, cos and tan explained • An illustrated walk-through of the Pythagorean theorem • All formulas the app uses, in one place GOOD FOR • Students in math, physics and technical subjects • Homework and checking your own calculations • Carpenters, builders and DIY projects that need angles and lengths PREMIUM One purchase removes all ads forever and unlocks the general triangle calculator. No subscription. Works on iPhone and iPad.

About

Right Triangle

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.

Highlights
  • Step-by-step solutions
  • Calculates legs, hypotenuse, height, angles, perimeter, area
  • Supports all length units
  • Curated learning videos
  • Feedback on incorrect inputs
  • Manage saved solutions
Features
Read full description

Finish homework instantly. Prepare for exams without stress. Free, complete step-by-step solutions. Enter your values and calculate legs, hypotenuse, height, angles, perimeter, and area. HOW IT WORKS Enter your values into the correct fields and get started. You’ll receive the solution instantly and can share it with friends or classmates. YOUR PERSONAL DATA We don’t need it. Only anonymized data is collected, such as: - which features are used - how many solutions are generated This helps us improve. We cannot identify you. COST Everything is free to use. 24/7 access to your solutions. All solution steps always remain complete. If you need many solutions in a short time, various purchase options are available. EXTRAS - overview of all variables - all length units - curated learning videos - feedback on incorrect inputs - manage your own solutions - app introduction CONTACT Questions and feedback via Discord or directly in the app review.

Screenshots

Trigonometry Calc4 screens
Right Triangle4 screens

Verdict

The call

The clearest difference is rating: Right Triangle at 3.8 against Trigonometry Calc's 3.0. Right Triangle also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 3 months). On price, in-app purchases, monetization model and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Trigonometry Calc sells 1 one-off in-app purchase and Right Triangle sells 8 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Right Triangle holds the better App Store score, 3.8 against 3.0. Both are backed by a comparable volume of ratings — 2 and 6 respectively.

UpkeepUpdate frequency

Trigonometry Calc ships an update every 3 months, Right Triangle every 3 weeks. The most recent releases landed on November 11, 2026 and November 10, 2026 respectively.

Scorecard4 real differences · 6 level
Trigonometry Calc versus Right Triangle: the parameters behind the verdict, then further details
ParameterTrigonometry CalcRight Triangle
PriceFreeFree
Rating3.0 (2 ratings)3.8 (6 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings26 — better
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size8 MB180 MB
Age rating4+4+
DeveloperBo KalvslundGlindemann, Sennoun, Langer GbR

Customer experience

Trigonometry Calc

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews6 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Right Triangle

All ratings6 ratings
Positive66.7%
Neutral16.7%
Negative16.7%

In-app purchases

1 purchases

Trigonometry Calc

One-time1
  • Premium$0.99
8 purchases

Right Triangle

One-time8
  • +30 User Tokens$0.29
  • +1 Convenience Token / 6h, max. +2$0.59
  • +2 Convenience Tokens / 6h, max. +4$0.99
Show 5 more
  • +150 User Tokens$0.99
  • +300 User Tokens$1.49
  • +4 Convenience Tokens / 6h, max. +8$1.59
  • Remove Ads$2.99
  • Lifetime Access$2.99

Questions

Is Trigonometry Calc free?
Trigonometry Calc is free to download, with in-app purchases available.
Is Right Triangle free?
Right Triangle is free to download, with in-app purchases available.
Which has better reviews, Trigonometry Calc or Right Triangle?
Right Triangle is rated higher. Trigonometry Calc averages 3.0 out of 5 from 2 ratings, while Right Triangle averages 3.8 from 6 ratings.
Do Trigonometry Calc or Right Triangle have ads?
Trigonometry Calc shows ads; Right Triangle does not.
Which is updated more often, Trigonometry Calc or Right Triangle?
Trigonometry Calc ships an update every 3 months, and Right Triangle every 3 weeks. Most recently, Trigonometry Calc was updated on November 11, 2026 and Right Triangle on November 10, 2026.

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