Master trigonometry with this comprehensive mobile helper. It offers a textbook, visual explanations, and video lessons covering all essential formulas and theorems. Prepare for your exams with detailed content and easy-to-understand explanations.





243+ iOS apps curated and reviewed
Every iPhone needs a few good trigonometry calculator identities apps. We benchmark 243+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 | Free | 2.0★ (4) | No | Yes | May 2026 | ||
| 2 | Free | 5.0★ (3) | Yes | Yes | Sep 2026 | ||
| 3 | Free | — | — | No | Jul 2026 | ||
| 4 | Free | 1.0★ (4) | No | No | May 2026 | ||
| 5 | Free | 4.7★ (768) | No | Yes | Oct 2026 | ||
| 6 | Free | — | No | No | Aug 2026 | ||
| 7 | $1.99 | 4.7★ (477) | No | Yes | Oct 2026 | ||
| 8 | Free | — | — | No | May 2026 |





Master trigonometry with this comprehensive mobile helper. It offers a textbook, visual explanations, and video lessons covering all essential formulas and theorems. Prepare for your exams with detailed content and easy-to-understand explanations.






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.