250+ iOS apps curated and reviewed
Finding the right trigonometry calculator apps can be overwhelming with so many options. We've analyzed 250+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 5.0★ (3) | Yes | Yes | Sep 2026 | |
| 2 |  | Free | 4.8★ (53K) | Yes | Yes | Sep 2026 | |
| 3 |  | Free | 4.3★ (78) | No | No | Aug 2026 | |
| 4 |  | Free | 4.7★ (768) | No | Yes | Sep 2026 | |
| 5 |  | $1.99 | 1.3★ (3) | No | No | Jul 2026 | |
| 6 |  | Free | 4.7★ (140) | Yes | No | Sep 2026 | |
| 7 |  | Free | 4.8★ (1.9K) | Yes | No | Sep 2026 | |
| 8 |  | Free | — | Yes | No | Jul 2026 |
This app calculates key values for right-angled and scalene triangles with high precision. It offers a user-friendly interface, flexible angle units, and includes a reference guide to trigonometric formulas. A subscription unlocks calculation steps and removes ads.
This app offers a modern graphing calculator experience on your iPhone. It features fast, interactive touch-screen graphing, scrollable windows, and intelligent error messages for a more intuitive user experience. Designed to be a usable alternative to physical graphing calculators.
This application calculates unknown sides and angles of both regular and right triangles. It supports various input combinations, including two sides and an angle, two angles and a side, three sides, or two sides and an angle for right triangles.
