Triangle Solver vs Right Triangle
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Triangle Solver
Calculate unknown sides and angles of a triangle with ease. Supports various input combinations, including two angles and one side, two sides and one angle, or three sides.
- Calculate unknown sides
- Calculate unknown angles
- Two angles and one side input
- Two sides and one angle input
- Three sides input
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If you know two angles and one side of a triangle, quickly and easily calculate the rest. Also handles cases where you know two sides and one angle, or three sides and no angles.
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.
- 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
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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
Verdict
The clearest difference is in-app purchases: Triangle Solver at none against Right Triangle's 8. Triangle Solver also leads on rating (4.2 vs 3.8) and ratings volume (31 vs 6). Right Triangle's advantage is update cadence (every 3 weeks vs every 21 months). On price, 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. Right Triangle sells 8 one-off in-app purchases. Triangle Solver asks for nothing beyond the download.
Triangle Solver holds the better App Store score, 4.2 against 3.8. That said, the two scores are not equally well evidenced: Triangle Solver has 31 ratings behind it against 6, so its average is the more settled of the two.
Triangle Solver ships an update every 21 months, Right Triangle every 3 weeks. The most recent releases landed on October 3, 2026 and October 2, 2026 respectively.
| Parameter | Triangle Solver | Right Triangle |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (31 ratings) — better | 3.8 (6 ratings) |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 31 — better | 6 |
| Update frequency | Every 21 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 97 MB | 180 MB |
| Age rating | 4+ | 4+ |
| Developer | William Jockusch | Glindemann, Sennoun, Langer GbR |
Customer experience
Triangle Solver
Right Triangle
Bugs and requests
Triangle Solver
Reported bugs
10 issues- Stopped working on iPhone and iPad
- App crashes
- Won't open on older devices
- Doesn't allow value entry
- Input fields not clear
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- Buttons are tiny and difficult to read
- Gives NAN answers
- Erases input when typing numbers
- Screen jumps when entering values
- Cannot enter any variables after upgrade
Requested features
6 requests- Add switch to radians feature
- Allow input of irrational numbers
- Show steps for solving problems
- Triangle shape changes to match values for accurate scale
- Option to use app sideways for larger keyboard
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- Ability to use squares
Right Triangle
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Triangle Solver
No in-app purchases
Right Triangle
- +30 User Tokens$0.29
- +1 Convenience Token / 6h, max. +2$0.59
- +2 Convenience Tokens / 6h, max. +4$0.99
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- +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 Triangle Solver free?
Is Right Triangle free?
Which has better reviews, Triangle Solver or Right Triangle?
Do Triangle Solver or Right Triangle have ads?
Which is updated more often, Triangle Solver or Right Triangle?
Other comparisons
