245+ iOS apps curated and reviewed
If you already know Ring Sizer by Jason Withers ©, this is the deeper bench. 245+ ring sizing apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of October 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.5★ (6.9K) | Yes | Yes | Oct 2026 | |
| 2 |  | Free | 4.7★ (614) | No | Yes | Oct 2026 | |
| 3 |  | Free | 4.1★ (18) | No | No | Oct 2026 | |
| 4 |  | Free | 4.2★ (2.4K) | Yes | Yes | Oct 2026 | |
| 5 |  | Free | — | No | No | May 2026 | |
| 6 |  | Free | 1.0★ (1) | No | No | Aug 2026 | |
| 7 |  | Free | 3.5★ (2) | Yes | No | Sep 2026 | |
| 8 |  | Free | 4.8★ (464) | Yes | 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.
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.
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.
