Trigonometry calc vs Ratio & Proportion Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
Ratio & Proportion Calculator
Easily solve proportion problems by entering three of the four variables. This app provides detailed step-by-step solutions and saves all your calculations in a history for later review. Fractions, decimals, and constants are supported.
- Solve proportions with 3 variables
- Detailed solution steps
- Calculation history
- Supports fractions and decimals
- Option to remove ads
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Finish homework instantly. Prepare for exams stress-free. Free, complete step-by-step solutions. Enter your values and calculate the missing value of a proportion. HOW IT WORKS Enter your values in the correct fields and get started. You 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. 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 - 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 review sentiment: Ratio & Proportion Calculator at 67% against Trigonometry calc's 0%. Ratio & Proportion Calculator also leads on rating (4.7 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. Trigonometry calc sells 1 one-off in-app purchase and Ratio & Proportion Calculator sells 8 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Ratio & Proportion Calculator holds the better App Store score, 4.7 against 3.0. That said, the two scores are not equally well evidenced: Ratio & Proportion Calculator has 16 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of Trigonometry calc's written reviews are positive against 67% of Ratio & Proportion Calculator's.
Trigonometry calc ships an update every 3 months, Ratio & Proportion Calculator every 3 weeks. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.
| Parameter | Trigonometry calc | Ratio & Proportion Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) | 4.7 (16 ratings) — better |
| Positive reviews | 0.0% of reviews | 66.7% of reviews — better |
| Number of ratings | 2 | 16 — better |
| Update frequency | Every 3 months | Every 3 weeks — better |
| Ads | Yes | No — better |
| 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 | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 180 MB |
| Age rating | 4+ | 4+ |
| Developer | Bo Kalvslund | Glindemann, Sennoun, Langer GbR |
Customer experience
Trigonometry calc
Ratio & Proportion Calculator
In-app purchases
Trigonometry calc
- Premium$0.99
Ratio & Proportion Calculator
- +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$1.99
- Lifetime Access$1.99
Questions
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