196+ iOS apps curated and reviewed
Out of 196+ arbitrary triangle pro apps on iOS, 18 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | $2.99 | 5.0★ (1) | No | No | Sep 2026 | |
| 2 |  | Free | 4.2★ (30) | No | No | Aug 2026 | |
| 3 |  | Free | 5.0★ (2) | No | No | May 2026 | |
| 4 |  | Free | 3.6★ (40) | No | Yes | May 2026 | |
| 5 |  | Free | 4.9★ (243K) | Yes | No | Sep 2026 | |
| 6 |  | Free | 4.7★ (768) | No | Yes | Sep 2026 | |
| 7 |  | Free | 3.5★ (8) | No | No | May 2026 | |
| 8 |  | Free | 4.5★ (18K) | No | Yes | Sep 2026 |
This app calculates all unknown quantities of an arbitrary triangle. It displays the formulas used and provides step-by-step solutions, supporting decimals and fractions. Calculations are saved in history and can be shared.
Calculate unknown sides and angles of a triangle with ease. Supports various input combinations, including two angles and one side, two sides and one angle, or three sides.
Calculate side lengths, angles, area, and perimeter of right-angle triangles. Visualizes the triangle with adjustable precision and offers options to rotate, flip, and customize themes. Reuses previous entries for efficiency.
