218+ iOS apps curated and reviewed
Out of 218+ ruler millimeters apps on iOS, 19 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 |  | Free | 4.3★ (35K) | No | Yes | Oct 2026 | |
| 2 |  | $3.99 | 4.4★ (108) | No | No | Aug 2026 | |
| 3 |  | Free | 3.5★ (934) | No | Yes | Oct 2026 | |
| 4 |  | Free | 3.5★ (79) | Yes | No | Oct 2026 | |
| 5 |  | Free | 3.7★ (24) | Yes | Yes | Oct 2026 | |
| 6 |  | Free | 5.0★ (1) | No | Yes | Aug 2026 | |
| 7 |  | Free | 3.9★ (205) | No | No | May 2026 | |
| 8 |  | Free | — | Yes | No | May 2026 |
This app provides a versatile toolkit for all your measurement needs. It includes a classic ruler, a tape measure, and a camera ruler for precise measurements. Easily switch between units and document your findings by adding measurements directly to photos.
This app transforms your device into a versatile measuring tool. It allows for precise measurements of length, area, diameter, and angles using the touchscreen. Easily split objects into equal parts and switch between millimeters and inches for your convenience.
This app allows you to measure lengths accurately in both inches and centimeters. It provides a simple and straightforward tool for quick measurements.
