Pythagoras Calculator vs Trigonometry
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
Read full descriptionHide full description
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
Learn basic trigonometric formulas through interactive theory and fun games. Earn points to progress through levels and master the concepts.
- Memorize basic trigonometric formulas
- Interactive theory section
- Four included games
- Earn points to advance levels
- Beginner-friendly
Read full descriptionHide full description
- A simple and fun application to memorise the basic trigonometric formulas! - An interactive theory section and four games are included! - Earn points to advance to the next level!
Screenshots
Verdict
The clearest difference is review sentiment: Pythagoras Calculator at 83% against Trigonometry's 0%. Pythagoras Calculator also leads on rating (4.6 vs 1.0) and ratings volume (242 vs 4). Trigonometry's advantage is in-app purchases (none vs 8) and iOS requirement (13.4 vs 15.0). On price, update cadence, ads 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. Trigonometry asks for nothing beyond the download.
Pythagoras Calculator holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: Pythagoras Calculator has 242 ratings behind it against 4, 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's.
Pythagoras Calculator ships an update every 3 weeks, Trigonometry every 2 weeks. The most recent releases landed on October 18, 2026 and September 22, 2026 respectively.
| Parameter | Pythagoras Calculator | Trigonometry |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (242 ratings) — better | 1.0 (4 ratings) |
| Positive reviews | 83.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 242 — better | 4 |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.4 — better |
| Further details — not scored | ||
| Size | 179 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Glindemann, Sennoun, Langer GbR | Konstantinos Anagnostou |
Customer experience
Pythagoras Calculator
Trigonometry
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
Show 1 moreShow fewer
- 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
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
No in-app purchases
Questions
Is Pythagoras Calculator free?
Is Trigonometry free?
Which has better reviews, Pythagoras Calculator or Trigonometry?
Do Pythagoras Calculator or Trigonometry have ads?
Which is updated more often, Pythagoras Calculator or Trigonometry?
Other comparisons
