244+ iOS apps curated and reviewed
The best a complex calc apps on iPhone average 4.2★ across 244+ 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 | 4.7★ (25) | No | No | Nov 2026 | |
| 2 |  | Free | 4.3★ (6) | No | No | Nov 2026 | |
| 3 |  | Free | 4.5★ (147K) | Yes | Yes | Nov 2026 | |
| 4 |  | Free | 1.0★ (1) | No | Yes | Nov 2026 | |
| 5 |  | Free | 4.6★ (5.1K) | Yes | Yes | Nov 2026 | |
| 6 |  | Free | — | No | No | Jul 2026 | |
| 7 |  | Free | 4.7★ (16K) | Yes | Yes | Nov 2026 | |
| 8 |  | Free | 5.0★ (8) | Yes | Yes | Oct 2026 |
Perform complex calculations with a modern, user-friendly interface. Offers both basic and scientific modes, including support for complex numbers and advanced functions. This lightweight application provides a history of computations and is completely free with no advertisements.
Perform complex number calculations with ease. Convert between rectangular and exponential forms, and utilize four basic operations. Features quick copy-paste functionality and automatic dark mode.
This utility app offers a straightforward calculation experience with a vast selection of over 80 customizable themes. Personalize your calculator's appearance to suit your style while performing everyday math tasks.
