142+ iOS apps curated and reviewed
The best accelerate calculating apps on iPhone average 4.5★ across 142+ 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 |  | $6.99 | — | — | No | May 2026 | |
| 2 |  | Free | 4.5★ (4) | No | No | Sep 2026 | |
| 3 |  | Free | 4.7★ (16) | No | No | Aug 2026 | |
| 4 |  | Free | 5.0★ (1) | Yes | No | Aug 2026 | |
| 5 |  | $19.99 | 4.7★ (526) | No | No | Sep 2026 | |
| 6 |  | Free | 3.6★ (41) | No | No | Sep 2026 | |
| 7 |  | Free | 5.0★ (3) | No | No | Sep 2026 | |
| 8 |  | Free | 4.7★ (342) | Yes | Yes | Sep 2026 |
This app offers a fast, multi-threaded calculator with a spreadsheet-like interface for easy editing and instant updates. It handles large numbers and complex expressions with arbitrary-precision arithmetic, making it suitable for various real-world calculations.
Enhance your mental arithmetic skills and become a human calculator. This app offers over 100 variants to practice addition, subtraction, multiplication, and division with adjustable difficulty and duration.
