244+ iOS apps curated and reviewed
DiaMeter is the household name in diameter, but it's far from the only option. We track 244+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.7★ (7) | No | Yes | Sep 2026 | |
| 2 |  | Free | 4.5★ (6.7K) | Yes | Yes | Sep 2026 | |
| 3 |  | Free | — | No | No | Sep 2026 | |
| 4 |  | Free | — | No | No | May 2026 | |
| 5 |  | Free | 4.6★ (5) | No | Yes | Sep 2026 | |
| 6 |  | Free | — | No | No | Jul 2026 | |
| 7 |  | Free | 4.1★ (22) | No | Yes | May 2026 | |
| 8 |  | Free | 3.5★ (11) | Yes | No | May 2026 |
This app helps manage diabetes by tracking blood sugar, insulin doses, and carbohydrate intake. It provides clear statistics and reminders to help users achieve better control over their condition. Features include a bread unit calculator and educational articles.
Easily determine your ring size across multiple countries using metric or imperial units. Features visual guides and supports various international sizing standards. Share your size and explore a jewelry catalog.
This utility app provides a straightforward way to calculate circle properties. Simply input one known value (radius, diameter, circumference, or area) to instantly get the results for the others. It's designed for quick and no-fuss calculations.
