247+ iOS apps curated and reviewed
Every iPhone needs a few good ring size measure free apps. We benchmark 247+ 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 | 4.5★ (6.7K) | Yes | Yes | Oct 2026 | |
| 2 |  | Free | 4.7★ (604) | No | Yes | Sep 2026 | |
| 3 |  | Free | 4.6★ (51) | No | Yes | Sep 2026 | |
| 4 |  | Free | — | No | No | May 2026 | |
| 5 |  | Free | 4.2★ (2.4K) | Yes | Yes | Oct 2026 | |
| 6 |  | Free | 4.4★ (9) | No | No | Sep 2026 | |
| 7 |  | Free | 4.6★ (184) | No | Yes | Sep 2026 | |
| 8 |  | Free | 4.8★ (456) | Yes | Yes | Sep 2026 |
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.
Accurately measure your finger size or compare existing rings to find the perfect fit. This tool simplifies ring sizing for confident online purchases and jewelry selection.
Accurately determine your ring size using your phone's camera and screen. Offers four easy methods, including AR measurement and on-screen guides. Includes a comprehensive size chart for multiple regional standards.
