Trigonometry calc vs Isosceles Triangle
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
Isosceles Triangle
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Finish homework instantly. Prepare for exams stress-free. Free, complete step-by-step solutions. Enter your values and calculate legs, base, 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, for example: - which features are used - how many solutions are generated This helps us improve. No conclusions can be drawn about you. COSTS Everything is free to use. 24/7 access to your solutions. All solution steps remain fully available at all times. If you need many solutions in a short time, various purchase options are available. EXTRAS - overview of all quantities - acute and obtuse triangles - 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 ads: Isosceles Triangle at none against Trigonometry calc's shown. Isosceles Triangle also leads on update cadence (every 3 weeks vs every 3 months). On price, in-app purchases, device support and iOS requirement 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 Isosceles Triangle sells 8 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Trigonometry calc ships an update every 3 months, Isosceles Triangle every 3 weeks. The most recent releases landed on September 6, 2026 and September 24, 2026 respectively.
| Parameter | Trigonometry calc | Isosceles Triangle |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 2 — 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 | — |
| 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 |
In-app purchases
Trigonometry calc
- Premium$0.99
Isosceles Triangle
- +30 User Tokens$0.29
- +1 Convenience Token / 6h, max. +2$0.59
- +150 User Tokens$0.99
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- +2 Convenience Tokens / 6h, max. +4$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 Trigonometry calc free?
Is Isosceles Triangle free?
Do Trigonometry calc or Isosceles Triangle have ads?
Which is updated more often, Trigonometry calc or Isosceles Triangle?
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