244+ iOS apps curated and reviewed
The best free ring size app on iPhone average 4.5★ across 244+ titles — we've ranked them by what real users actually keep on their phones. Updated October 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.5★ (6.9K) | Yes | Yes | Nov 2026 | |
| 2 |  | Free | 4.2★ (2.4K) | Yes | Yes | Nov 2026 | |
| 3 |  | Free | 4.1★ (18) | No | No | Oct 2026 | |
| 4 |  | Free | 4.7★ (614) | No | Yes | Oct 2026 | |
| 5 |  | Free | — | No | No | May 2026 | |
| 6 |  | Free | 4.5★ (81) | No | Yes | Oct 2026 | |
| 7 |  | Free | 4.9★ (9) | No | No | Nov 2026 | |
| 8 |  | Free | 4.7★ (30) | No | Yes | Oct 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.
This application helps you accurately measure ring and finger sizes without the need for physical tools. It offers a user-friendly interface and supports various measurement systems for precise results, making online jewelry shopping easier.
Measure your ring size accurately by placing a ring on your screen and adjusting a dot to match its inner diameter. Get your size in seconds without needing a physical sizer.
