181+ iOS apps curated and reviewed
The best celsius fahrenheit apps on iPhone average 4.6★ across 181+ titles — we've ranked them by what real users actually keep on their phones. Updated July 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.6★ (1.6K) | Yes | Yes | Jul 2026 |
| 2 |  | Free | 4.8★ (1.4K) | No | Yes | Jul 2026 |
| 3 |  | Free | 4.4★ (239) | Yes | No | Jul 2026 |
| 4 |  | Free | 4.6★ (31) | Yes | No | Jul 2026 |
| 5 |  | Free | 4.8★ (6.3K) | No | Yes | Jul 2026 |
| 6 |  | $0.99 | — | No | No | Jul 2026 |
| 7 |  | Free | 4.5★ (145) | No | No | Jul 2026 |
| 8 |  | Free | — | Yes | No | May 2026 |
Easily convert temperatures between Fahrenheit and Celsius. Access current, historical, and forecasted weather data for any city in both units simultaneously.
This app displays current temperatures in both Celsius and Fahrenheit simultaneously. It's designed for individuals living abroad or those traveling, helping them easily understand and adapt to different temperature scales. Enjoy a visually appealing interface with comprehensive weather details and convenient home and lock screen widgets.
This free digital thermometer app uses GPS to measure and display the ambient temperature in Fahrenheit. It includes a Fahrenheit to Celsius conversion calculator and a barometer function for compatible devices. It also shows sunrise and sunset times, offering a reference for outdoor activities.
Easily convert temperatures between Fahrenheit and Celsius. This straightforward utility is designed for simple and quick temperature conversions.
Easily convert temperatures between Celsius, Fahrenheit, and Kelvin with a clean and intuitive interface. This utility app offers quick and accurate conversions for everyday use. Ads are present but can be removed via a one-time purchase.
Easily convert temperatures between Fahrenheit and Celsius with this intuitive tool. Ideal for travelers or those working internationally, it handles conversions in both directions and validates input to prevent errors. Enjoy a clean interface with light and dark modes.
This app measures ambient temperature using GPS and displays it in Celsius, with a converter to Fahrenheit. It also includes a barometer and sunrise/sunset times. Useful for checking outdoor conditions and planning outfits.
Easily convert temperatures between Fahrenheit, Celsius, and Kelvin scales. This utility app provides a simple interface for quick and accurate temperature conversions.
View weather in both Celsius and Fahrenheit simultaneously without needing to switch settings or perform mental calculations. This app is designed for travelers, expats, and households with mixed-unit preferences, offering a clean, ad-free experience with essential weather information.
Effortlessly convert temperatures between Celsius, Fahrenheit, and Kelvin. This utility app provides a straightforward interface for quick and accurate conversions.
Quickly convert temperatures between Fahrenheit and Celsius with instant results. This ad-free utility works offline, offering animated visuals and contextual labels for easy understanding. It supports negative temperatures and includes reference points for common scenarios.
This app provides dual temperature readings in both Fahrenheit and Celsius, along with customizable weather details like air quality and lightning proximity. It offers various display formats and widget options for easy access to your preferred weather information.
This app provides accurate weather forecasts with real-time temperature updates, displaying both Fahrenheit and Celsius simultaneously. It features a customizable home screen widget to help users easily adapt to and learn temperature conversions.
This utility app offers a straightforward way to convert between multiple temperature units simultaneously. It features a dedicated numeric keyboard with support for negative numbers and decimals, ensuring quick and accurate conversions for various scientific and travel needs.
Easily convert temperatures between Celsius, Fahrenheit, and Kelvin. Simply input your temperature, and the app will automatically display the converted results.
Easily convert temperatures between Celsius and Fahrenheit with a simple sliding interface or button taps. View both scales simultaneously for quick reference. This app requires no internet connection.
Effortlessly convert temperatures between eight different units including Celsius, Fahrenheit, Kelvin, and more. This app provides accurate conversions with clear formulas, making it ideal for students and professionals needing quick temperature calculations.