250+ iOS apps curated and reviewed
The best free calculator apps on iPhone average 4.5★ across 250+ titles — we've ranked them by what real users actually keep on their phones. Updated October 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 4.9★ (260K) | Yes | No | Oct 2026 | |
| 2 |  | Free | 4.2★ (1.4K) | No | No | Oct 2026 | |
| 3 |  | Free | 4.7★ (18K) | Yes | Yes | Oct 2026 | |
| 4 |  | Free | 4.7★ (1.7M) | Yes | Yes | Oct 2026 | |
| 5 |  | Free | 4.9★ (409K) | Yes | No | Oct 2026 | |
| 6 |  | Free | 4.7★ (14K) | Yes | No | Oct 2026 | |
| 7 |  | Free | 4.7★ (84K) | No | Yes | Oct 2026 | |
| 8 |  | Free | 4.9★ (34K) | Yes | Yes | Oct 2026 |
Perform essential arithmetic operations with a straightforward calculator app. Its large buttons and clear display ensure ease of use, supporting both portrait and landscape orientations.
A straightforward and reliable calculator application designed for iPad and iOS 9. It offers a standard calculation experience with a charming piano sound effect and is optimized for high-resolution screens.
A straightforward and intuitive calculator app designed for ease of use. It offers a history bar, customizable themes, and advanced mathematical functions, ensuring a pleasant and efficient calculation experience on your device.
