This free utility app provides seamless number system conversions between hexadecimal, binary, and decimal. It offers a clean, customizable interface with full calculation history and supports essential arithmetic and bitwise operations.






248+ iOS apps curated and reviewed
The best hexadecimal calc apps on iPhone average 4.2★ 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 | 4.9★ (25) | No | No | Oct 2026 | ||
| 2 | $1.99 | — | No | No | May 2026 | ||
| 3 | Free | 4.7★ (929) | No | Yes | Nov 2026 | ||
| 4 | Free | 4.9★ (48) | No | No | Oct 2026 | ||
| 5 | Free | 4.1★ (15) | Yes | No | Oct 2026 | ||
| 6 | Free | 4.8★ (183) | No | No | Oct 2026 | ||
| 7 | Free | — | Yes | Yes | May 2026 | ||
| 8 | $1.99 | — | No | No | Sep 2026 |






This free utility app provides seamless number system conversions between hexadecimal, binary, and decimal. It offers a clean, customizable interface with full calculation history and supports essential arithmetic and bitwise operations.




This application serves as a versatile calculator designed for programmers. It supports conversions and calculations across binary, decimal, and hexadecimal number systems.