250+ iOS apps curated and reviewed
Every iPhone needs a few good base calculator & converter apps. We benchmark 250+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated | |
|---|---|---|---|---|---|---|---|
| 1 |  | Free | 3.0★ (2) | No | No | Jul 2026 | |
| 2 |  | Free | 4.7★ (1.7M) | Yes | Yes | Oct 2026 | |
| 3 |  | Free | 4.8★ (3.2K) | Yes | Yes | Oct 2026 | |
| 4 |  | Free | 4.9★ (409K) | Yes | No | Oct 2026 | |
| 5 |  | $5.99 | 4.7★ (6.3K) | No | Yes | Oct 2026 | |
| 6 |  | Free | 4.6★ (10K) | Yes | Yes | Oct 2026 | |
| 7 |  | Free | 4.7★ (61K) | No | No | Oct 2026 | |
| 8 |  | Free | 1.7★ (3) | No | No | Aug 2026 |
Easily convert numbers between binary, octal, decimal, and hexadecimal bases. Perform arithmetic operations like addition, subtraction, multiplication, and division across different bases. The app also saves your calculation history for quick access.
This app offers a comprehensive suite of calculation tools, including basic, scientific, and unit conversion functions. It features an AI-powered math solver that can solve problems from photos and a dedicated math notes section for jotting down equations and diagrams. Accessibility options like dynamic text size and VoiceOver support are also included.
A free, classic calculator app with large, easy-to-press buttons and customizable skins. It supports basic arithmetic, memory functions, and can handle very large numbers without using scientific notation. Multitasking is also supported on compatible devices.
