# Triangle Calculator 90° angle — Right angle triangle solver > Solves right-angled triangle problems, calculating sides and angles. (iPhone/iPad app by Claire Holmes.) - Source: https://appshunter.io/ios/app/triangle-calculator-90-angle/id815332883 (this page in markdown: same URL + `.md`) - Developer: [Claire Holmes](https://appshunter.io/developer/397229185) - Category: Utilities, Productivity - Price: $1.99 - Rating: 1.00/5 from 1 App Store ratings · 5 written reviews indexed - Age rating: 4+ - Requires: iOS 9.0 · 43 MB - Languages: American English - Released: 2014-02-12 - Data updated: 2026-06-10 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/triangle-calculator-90-angle/id815332883/reviews.md ## What is Triangle Calculator 90° angle? Versatile app that makes it easy to solve right-angled (90°) triangle problems. Quickly and easily find out the unknown side length(s) and angle(s) to your triangle problems at the press of a button. Never have to remember right-angled triangle trigonometry again! ## Key features - Solves 90° triangle problems - Calculates unknown sides - Calculates unknown angles - Easy to use interface - No trigonometry memorization needed ## Recent user reviews (5 of 5) All indexed reviews: https://appshunter.io/ios/app/triangle-calculator-90-angle/id815332883/reviews.md ### 1/5 — DO NOT BUY *2023-06-12* This app doesn’t work. I will be reporting it to Apple. All you get is a picture of a dog!!!!! ### 1/5 — Not working *2021-06-08* Just bought this. Tried to open got a picture of a dog and it closed ### 3/5 — Not accurate enough *2021-01-17* I downloaded this to use as a quick calculator whilst machine programming. The parts I work on are measured in Imperial but the rounding is to 3dp which means my answers are in thousands of an inch and I need 10th of a thousandth of an inch. Other than that it would have been perfect. ### 1/5 — Better Web pages than this. *2019-02-07* It should solve with data in two fields. **Developer response:** Can you please provide an example we can replicate to allow us to investigate ### 1/5 — BS App *2017-10-16, version 1* Doesn't do anything. :( **Developer response:** There is now an update for the latest iOS versions. Please update and use. ## Frequently asked questions about Triangle Calculator 90° angle ### What is Triangle Calculator 90° angle? Triangle Calculator 90° angle is a utility app designed to solve problems related to right-angled triangles. It allows users to quickly find unknown side lengths and angles. ### How much does Triangle Calculator 90° angle cost? Triangle Calculator 90° angle is a paid app, priced at $1.99. There are no in-app purchases or subscriptions required. ### What devices support Triangle Calculator 90° angle? Triangle Calculator 90° angle is available for iPhone and iPod devices. It is designed for iOS. ### Is Triangle Calculator 90° angle suitable for children? Triangle Calculator 90° angle has an age rating of 4+, making it suitable for younger users who are learning basic geometry or for general use. ### When was Triangle Calculator 90° angle last updated? The latest version of Triangle Calculator 90° angle was released on October 10, 2018. The app was initially released on February 12, 2014. ### Does Triangle Calculator 90° angle have ads? No, Triangle Calculator 90° angle does not contain advertisements. As a paid application, it offers an ad-free experience. ### What is the user feedback on Triangle Calculator 90° angle? Based on the available data, Triangle Calculator 90° angle has one rating of 1.0 stars. This indicates a very low user satisfaction score from the single review. ## Version history (last 3 releases) ### 2.0.1 — 2018-10-10 Small UI fixes ### 2.0.0 — 2018-10-02 Updated for use with the latest iOS versions. ### 1 — 2014-02-11 No release notes. ## Apps similar to Triangle Calculator 90° angle | App | Rating | Price | Category | | --- | --- | --- | --- | | [QR Bot](https://appshunter.io/ios/app/qr-bot/id1618074682) | 4.5 (26) | Free | Utilities | | [Math AI: Scientific Calculator](https://appshunter.io/ios/app/math-ai-scientific-calculator/id1470445841) | 4.2 (1,446) | Free | Utilities | | [Headphone Check](https://appshunter.io/ios/app/headphone-check/id418445917) | 4.6 (207) | Free | Utilities | | [Quick Share - Data Transfer](https://appshunter.io/ios/app/quick-share-data-transfer/id1602491160) | 3.3 (68) | Free | Utilities | | [Construction Calculator](https://appshunter.io/ios/app/construction-calculator/id1092417398) | 4.7 (554) | Free | Utilities | | [WorldTime: Tell Time](https://appshunter.io/ios/app/worldtime-tell-time/id6446325495) | — | Free | Utilities | ## More apps by Claire Holmes - [Radiator / BTU Calculator](https://appshunter.io/ios/app/radiator-btu-calculator/id397251605) - [Carpet calculator / estimator](https://appshunter.io/ios/app/carpet-calculator-estimator/id406825264) - [Clapperboard / Clapboard Slate](https://appshunter.io/ios/app/clapperboard-clapboard-slate/id411034432) - [Gas Rate Heat Input Calculator](https://appshunter.io/ios/app/gas-rate-heat-input-calculator/id415565802) - [Pipe Offset Calculator](https://appshunter.io/ios/app/pipe-offset-calculator/id426519976) - [BMI Calc - Body Mass Index](https://appshunter.io/ios/app/bmi-calc-body-mass-index/id438060833) All apps by Claire Holmes: https://appshunter.io/developer/397229185 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*