245+ iOS apps curated and reviewed
The best metric conversions premium apps on iPhone average 4.4★ across 245+ titles — we've ranked them by what real users actually keep on their phones. Updated September 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | $4.99 | 3.0★ (2) | No | No | Sep 2026 | |
| 2 |  | Free | 4.8★ (15K) | No | No | Sep 2026 | |
| 3 |  | Free | 4.7★ (48K) | Yes | No | Sep 2026 | |
| 4 |  | Free | 4.8★ (193K) | Yes | Yes | Sep 2026 | |
| 5 |  | Free | 4.6★ (14K) | Yes | Yes | Sep 2026 | |
| 6 |  | Free | 4.8★ (157) | No | Yes | Sep 2026 | |
| 7 |  | Free | 5.0★ (2) | No | No | Aug 2026 | |
| 8 |  | Free | — | No | No | May 2026 |
This utility app offers a comprehensive suite of unit and currency conversions with a clean interface. It works offline and provides precise results, breaking down complex units into smaller components for detailed analysis. Users can save frequent conversions for quick access.
This app provides a comprehensive unit and currency converter with a user-friendly interface. It offers offline functionality, supports over 30,000 unit conversions, and includes more than 160 currencies with live exchange rates. Users can save favorite conversions and get precise results.
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.
