249+ iOS apps curated and reviewed
Finding the right unit conversion app can be overwhelming with so many options. We've analyzed 249+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.
| # | 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 | 3.6★ (163) | Yes | Yes | Nov 2026 | |
| 4 |  | Free | 4.6★ (16K) | No | Yes | Nov 2026 | |
| 5 |  | Free | 4.7★ (1.4K) | Yes | Yes | Nov 2026 | |
| 6 |  | Free | 4.7★ (408) | Yes | Yes | Oct 2026 | |
| 7 |  | Free | 4.6★ (14K) | Yes | Yes | Nov 2026 | |
| 8 |  | Free | — | No | No | May 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 between hundreds of units across 43 categories, including currency with daily updated rates. Customize your workflow by hiding or reordering units and categories.
