Comparison

Trigonometry calc vs Triangle Calculator Pythagoras

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

Use Trigonometry Calc to calculate sidelengths and angles in the right angled triangle. By the help of Pythagorean Theorem and some trigonometry functions you can in this app calculate side lengths and angles in any right angled triangle. Learn simple trigonometry. •Math •Trigonometry •Pythagorean Theorem Trigonometry Premium Go ad-free forever and unlock the advanced General Triangle Calculator (SAS/SSA/ASA). Solve any triangle, not just right triangles

About

Triangle Calculator Pythagoras

This geometry tool simplifies right-angled triangle calculations. It instantly solves for missing sides, angles, area, and perimeter using the Pythagorean theorem and trigonometry. It also displays the formulas used for each calculation, aiding understanding.

Highlights
  • Pythagorean Theorem Solver
  • Trigonometry Functions
  • Instant Area and Perimeter Calculation
  • View Calculation Formulas
  • Input known measurements to find missing values
Features
Read full description

Solve any right triangle from two values – and any other triangle from three. RIGHT TRIANGLES (FREE) Enter any two of: leg a, leg b, hypotenuse c, angle α or angle β (at least one side). Triangle Calculator finds every missing side and angle, plus the area, perimeter and height to the hypotenuse, using the Pythagorean theorem and sine, cosine and tangent. Swap the legs with one tap; a check confirms α + β = 90°. ANY TRIANGLE Enter any three values – sides a, b, c and angles A, B, C – and solve SSS, SAS, ASA, AAS and the ambiguous SSA case. Every missing side and angle and the triangle type (acute, right, obtuse; equilateral, isosceles, scalene) are free. Pro adds area, perimeter, all three heights, inradius, circumradius and the second SSA solution. VALUES ON THE DRAWING The triangle is redrawn to the true proportions of your answer, with every value written right on it. Prefer a list? Switch to the Classic layout in Settings. SEE HOW IT'S SOLVED Each result comes with its formula and your numbers, for example c = √(3² + 4²) = 5. DEGREES, MINUTES, SECONDS (PRO) Type and read angles like 36°52′12″ – for plans, surveying and job-site work. CLEAR, HONEST ANSWERS The app tells you when values can't form a triangle – a hypotenuse shorter than a leg, sides that break the triangle inequality, or angles that add up to too much – instead of returning a wrong number. FORMULA LIBRARY & HISTORY A searchable library of right-triangle and any-triangle formulas with worked examples, and a history of your calculations to reopen any time (free keeps your last 5). EVERYWHERE YOU WORK iPhone, iPad and Mac, portrait or landscape, light or dark mode – in English, German, Japanese, Turkish, Spanish, French, Italian and Russian. On iPad and Mac: a sidebar, a full-height drawing and keyboard shortcuts. TRIANGLE CALCULATOR PRO • No ads • Full Any Triangle results: area, perimeter, heights, radii and both SSA solutions • Every step of every solution • Angles in degrees, minutes and seconds • Unlimited history and Copy All The right-triangle solver and every side and angle of any triangle are always free. Pro options and prices are shown in the app. Terms of Use: https://monsware.com/right-triangle-terms Privacy Policy: https://monsware.com/right-triangle-privacy

Screenshots

Trigonometry calc4 screens
Triangle Calculator Pythagoras4 screens

Verdict

The call

The clearest difference is rating: Triangle Calculator Pythagoras at 4.0 against Trigonometry calc's 3.0. Triangle Calculator Pythagoras also leads on update cadence (monthly vs every 3 months). Trigonometry calc's advantage is iOS requirement (15.6 vs 17.0). On price, review sentiment, ratings volume and ads 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 Triangle Calculator Pythagoras sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Triangle Calculator Pythagoras holds the better App Store score, 4.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

UpkeepUpdate frequency

Trigonometry calc ships an update every 3 months, Triangle Calculator Pythagoras monthly. Both last shipped on October 24, 2026.

Scorecard3 real differences · 7 level
Trigonometry calc versus Triangle Calculator Pythagoras: the parameters behind the verdict, then further details
ParameterTrigonometry calcTriangle Calculator Pythagoras
PriceFreeFree
Rating3.0 (2 ratings)4.0 (1 ratings) — better
Positive reviews0.0% of reviews0.0% of reviews
Number of ratings2 — better1
Update frequencyEvery 3 monthsMonthly — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better17.0
Further details — not scored
Size10 MB22 MB
Age rating4+4+
DeveloperBo KalvslundMuhammed Samil DEMIR

Customer experience

Trigonometry calc

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

Triangle Calculator Pythagoras

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

1 purchases

Trigonometry calc

One-time1
  • Premium$0.99
3 purchases

Triangle Calculator Pythagoras

Subscriptions3
  • Weekly Premium3 Days trial$1.997 Days
  • Monthly Premium3 Days trial$4.991 Month
  • Premium Yearly7 Days trial$19.991 Year

Questions

Is Trigonometry calc free?
Trigonometry calc is free to download, with in-app purchases available.
Is Triangle Calculator Pythagoras free?
Triangle Calculator Pythagoras is free to download, with in-app purchases available.
Which has better reviews, Trigonometry calc or Triangle Calculator Pythagoras?
Triangle Calculator Pythagoras is rated higher. Trigonometry calc averages 3.0 out of 5 from 2 ratings, while Triangle Calculator Pythagoras averages 4.0 from 1 ratings.
Do Trigonometry calc or Triangle Calculator Pythagoras have ads?
Both Trigonometry calc and Triangle Calculator Pythagoras show ads.
Which is updated more often, Trigonometry calc or Triangle Calculator Pythagoras?
Trigonometry calc ships an update every 3 months, and Triangle Calculator Pythagoras monthly. Most recently, Trigonometry calc was updated on October 24, 2026 and Triangle Calculator Pythagoras on October 24, 2026.

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