242+ iOS apps curated and reviewed
If you already know Trigonometry calc, this is the deeper bench. 242+ trigonometry calc apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of August 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 3.0★ (2) | Yes | Yes | Sep 2026 | |
| 2 |  | Free | 5.0★ (3) | Yes | Yes | Jul 2026 | |
| 3 |  | Free | 4.7★ (768) | No | Yes | Sep 2026 | |
| 4 |  | Free | 2.0★ (4) | No | Yes | May 2026 | |
| 5 |  | $1.99 | 4.7★ (477) | No | Yes | Sep 2026 | |
| 6 |  | Free | — | — | No | Jul 2026 | |
| 7 |  | Free | 1.0★ (4) | No | No | May 2026 | |
| 8 |  | Free | — | No | No | Aug 2026 |
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.
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 quickly calculates unknown angles and sides of right-angled triangles. It offers a workings view for detailed solutions, scale drawings, and a formula reference. Input angles in various formats and customize decimal precision.
