246+ iOS apps curated and reviewed
The best caculator for apple watch apps on iPhone average 4.3★ across 246+ titles — we've ranked them by what real users actually keep on their phones. Updated August 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 3.0★ (8.9K) | No | No | Aug 2026 |
| 2 |  | Free | 5.0★ (3) | No | No | May 2026 |
| 3 |  | Free | 4.7★ (1.7M) | Yes | Yes | Aug 2026 |
| 4 |  | Free | 4.9★ (404K) | Yes | No | Aug 2026 |
| 5 |  | Free | 4.9★ (33K) | Yes | Yes | Aug 2026 |
| 6 |  | Free | 4.7★ (3.5K) | No | Yes | Aug 2026 |
| 7 |  | Free | 1.3★ (36) | No | No | May 2026 |
| 8 |  | Free | 5.0★ (4) | No | Yes | May 2026 |
This app offers both basic and scientific calculators for quick solutions to mathematical expressions. It also features a "Math Notes" function that allows users to type or write out equations and see them solved inline, with support for variables and graphing.
A straightforward and user-friendly calculator designed for simplicity and ease of use on your iPhone and Apple Watch. It offers essential calculation functions without unnecessary complexity.
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.
This utility app offers a clean and intuitive interface for performing calculations. It prioritizes a user-friendly design with large buttons and a clear display for quick and efficient use.
This app offers a straightforward calculation experience, focusing on essential functions without unnecessary complexity. It includes basic arithmetic, percentage calculations, and advanced functions like square root. Users can customize the appearance with multiple color schemes and utilize features like result copying and split-screen multitasking on iPad.
A free, redesigned calculator app offering a simpler, more intuitive experience across Apple devices. Features include customizable themes, advanced scientific functions, and unit conversion, all optimized for various screen sizes and interactions.
This app offers a simple calculator designed for Apple Watch and iPhone. It features a clean interface, displays the day and time, and allows for clearing entries with a press. Installation is straightforward via the Apple Watch app.
Perform basic and complex calculations on your Apple Watch and iPhone. Access a history of your equations and edit them. Upgrade for advanced features like currency conversion and ad-free experience.
This app offers a smart calculator experience across iPad, iPhone, and Apple Watch. It features a history of calculations, the ability to edit equations, and a convenient dark mode. Easily share your results and enjoy enhanced productivity with its user-friendly interface.
This app combines a powerful calculator with a comprehensive unit converter. It offers standard, scientific, and fraction calculations, along with over 600 units across 20 categories. Users can customize units, add notes to calculations, and enjoy a visually appealing interface with multiple themes.
This app offers both basic and scientific calculation modes with over 30 scientific operations. It allows for customization of the app's appearance and includes features for note-taking, drawing, and viewing calculation history. It supports high accuracy calculations and nested parentheses.
A straightforward and functional calculator designed for smartwatches. It offers a simple, user-friendly interface for quick calculations directly on your wrist.
A straightforward calculator designed specifically for your Apple Watch. Perform calculations quickly and easily directly from your wrist, with a simple interface for everyday math needs.
A straightforward and lightweight calculator app offering essential functions like random number generation, exponents, roots, and logarithms. It also serves as a companion for Apple Watch users, providing convenient access to calculations on their wrist.
This app offers a classic scientific calculator with both simple and engineering modes. It allows users to save calculations, customize the background with personal images, and preview expressions. It supports a range of Apple devices and includes dark/light modes.