246+ iOS apps curated and reviewed
Unit Converter is the household name in size converter, but it's far from the only option. We track 246+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.8★ (200K) | Yes | Yes | Nov 2026 | |
| 2 |  | Free | 4.7★ (48K) | Yes | No | Nov 2026 | |
| 3 |  | Free | 3.2★ (5) | No | No | May 2026 | |
| 4 |  | Free | 4.6★ (14K) | Yes | Yes | Nov 2026 | |
| 5 |  | Free | 4.6★ (16K) | No | Yes | Nov 2026 | |
| 6 |  | Free | — | — | No | Sep 2026 | |
| 7 |  | $3.99 | — | No | No | Sep 2026 | |
| 8 |  | Free | 5.0★ (2) | Yes | No | Oct 2026 |
Easily convert between a vast array of units and currencies with live exchange rates. This app offers a simple, intuitive interface for over 20 categories, making it ideal for everyday tasks and travel.
Quickly convert between thousands of units with an intelligent search and autocomplete feature. This app offers a streamlined interface, an integrated calculator, and the ability to save favorite conversions. It supports over 6,400 units across 51 categories, making it a comprehensive tool for all your conversion needs.
Easily convert clothing and shoe sizes across international standards. Select your local size from a dropdown, and instantly see equivalent measurements for women's and men's apparel worldwide.
