248+ iOS apps curated and reviewed
The best conversion tool apps on iPhone average 3.8★ across 248+ titles — we've ranked them by what real users actually keep on their phones. Updated November 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.8★ (200K) | Yes | Yes | Nov 2026 | |
| 2 |  | Free | 4.8★ (15K) | Yes | No | Nov 2026 | |
| 3 |  | Free | 2.0★ (7) | No | No | Nov 2026 | |
| 4 |  | Free | — | Yes | No | Sep 2026 | |
| 5 |  | $4.99 | 4.5★ (19) | No | No | Oct 2026 | |
| 6 |  | Free | 4.7★ (3) | No | No | May 2026 | |
| 7 |  | Free | — | No | No | Aug 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.
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.
This utility app allows users to convert a wide range of file types, including documents, music, eBooks, and images. It supports numerous target formats and offers advanced options like PDF password protection and metadata removal from images.
