Pythagoras Calculator vs Trigonometry calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pythagoras Calculator
Easily calculate any side of a right-angled triangle using the Pythagorean theorem. Input two sides to find the third, with all calculations saved in a history. Supports fractions and offers an ad-free option.
- Pythagorean theorem calculations
- Calculate any of the three sides
- History of calculations
- Supports fraction input
- Shareable solutions
- Ad-free option
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Finish your homework instantly. Prepare for exams without stress. Free, complete step-by-step solutions. Enter two sides and calculate the third using the Pythagorean theorem. HOW IT WORKS Enter your values in 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, for example: - which features are used - how many solutions are generated This helps us improve. We cannot draw any conclusions about you. COSTS Everything is free to use. 24/7 access to your solutions. All solution steps are always fully available. If you need many solutions in a short time, various purchase options are available. EXTRAS - 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.
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.
- Calculate side lengths
- Calculate angles
- Pythagorean Theorem
- Trigonometry functions
- Learn simple trigonometry
- General triangle calculator (premium)
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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
Screenshots
Verdict
The clearest difference is review sentiment: Pythagoras Calculator at 83% against Trigonometry calc's 0%. Pythagoras Calculator also leads on rating (4.6 vs 3.0) and ads (none vs shown). 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
Both are free to download. Pythagoras Calculator sells 8 one-off in-app purchases and Trigonometry calc sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Pythagoras Calculator holds the better App Store score, 4.6 against 3.0. That said, the two scores are not equally well evidenced: Pythagoras Calculator has 242 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 83% of Pythagoras Calculator's written reviews are positive against 0% of Trigonometry calc's.
Pythagoras Calculator ships an update every 3 weeks, Trigonometry calc every 3 months. The most recent releases landed on September 22, 2026 and September 6, 2026 respectively.
| Parameter | Pythagoras Calculator | Trigonometry calc |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (242 ratings) — better | 3.0 (2 ratings) |
| Positive reviews | 83.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 242 — better | 2 |
| Update frequency | Every 3 weeks — better | Every 3 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 179 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Glindemann, Sennoun, Langer GbR | Bo Kalvslund |
Customer experience
Pythagoras Calculator
Trigonometry calc
Bugs and requests
Pythagoras Calculator
Reported bugs
6 issues- App crashes or fails to calculate
- Paid ad removal not working properly
- Fraudulent payment processing through third-party sites
- Occasional incorrect calculation results
- App not functioning on iPhone 5SE and older devices
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- Persistent ads despite payment for removal
Requested features
6 requests- Calculate triangle angles
- Support angle-based calculations with one side
- Better monetization without aggressive ads
- Improved ratings system
- Real-time results display
Show 1 moreShow fewer
- Support for non-right triangles
Trigonometry calc
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Pythagoras Calculator
- +30 User Tokens$0.29
- +1 Convenience Token / 6h, max. +2$0.59
- +2 Convenience Tokens / 6h, max. +4$0.99
Show 5 moreShow fewer
- +150 User Tokens$0.99
- +300 User Tokens$1.49
- +4 Convenience Tokens / 6h, max. +8$1.59
- Remove Ads$1.99
- Lifetime Access$1.99
Trigonometry calc
- Premium$0.99
Questions
Is Pythagoras Calculator free?
Is Trigonometry calc free?
Which has better reviews, Pythagoras Calculator or Trigonometry calc?
Do Pythagoras Calculator or Trigonometry calc have ads?
Which is updated more often, Pythagoras Calculator or Trigonometry calc?
Other comparisons
