247+ iOS apps curated and reviewed
The best temperature converter apps on iPhone average 4.3★ across 247+ 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 | 4.8★ (94) | No | Yes | Aug 2026 |
| 2 |  | Free | 4.8★ (191K) | Yes | Yes | Aug 2026 |
| 3 |  | Free | 4.8★ (6.3K) | No | Yes | Aug 2026 |
| 4 |  | Free | 5.0★ (4) | No | No | May 2026 |
| 5 |  | Free | 4.6★ (1.6K) | Yes | Yes | Aug 2026 |
| 6 |  | Free | 2.5★ (2) | No | No | May 2026 |
| 7 |  | Free | 4.4★ (32) | Yes | No | Jul 2026 |
| 8 |  | Free | 4.8★ (369) | No | No | Aug 2026 |
Easily convert temperatures between Celsius and Fahrenheit with instant results. The app visually indicates the temperature using background color and offers adjustable precision. Home screen widgets provide quick access to conversions without any advertisements.
Easily convert between a wide range of units across 20 categories, including length, weight, temperature, and more. Features live currency updates for 155 world currencies, refreshed daily. Designed for simplicity and visual appeal.
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.
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 Fahrenheit and Celsius. Access current, historical, and forecasted weather data for any city in both units simultaneously.
Easily convert temperatures between Celsius, Fahrenheit, and Kelvin with a simple scrolling interface. Adjust values and see conversions update instantly.
Easily convert temperatures between Celsius, Fahrenheit, and Kelvin. This utility is ideal for travel, cooking, scientific applications, or daily use.
Effortlessly convert temperatures between Celsius, Fahrenheit, and Kelvin. This utility app provides a straightforward interface for quick and accurate conversions.
Quickly convert between thousands of units with an intelligent search and autocomplete feature. This app offers a streamlined interface, an integrated calculator, and the ability to save favorite conversions. It supports over 6,400 units across 51 categories, making it a comprehensive tool for all your conversion needs.
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.
Effortlessly convert between five major temperature scales, including Celsius, Fahrenheit, Kelvin, Rankine, and Réaumur. Customize your view, save favorite scales, and enjoy precise formatting for everyday use or scientific calculations.
Easily convert between various units of measurement, including currencies, temperature, length, and weight. This intuitive tool provides real-time currency exchange rates and a comprehensive list of conversions for everyday use.
Easily convert temperatures between Celsius, Fahrenheit, and Kelvin with an elegant and intuitive interface. Features dynamic background color changes based on temperature and supports decimal conversions.
Easily convert temperatures between Fahrenheit and Celsius. This straightforward utility is designed for simple and quick temperature conversions.
Easily convert temperatures between Fahrenheit, Celsius, and Kelvin scales. This utility app provides a simple interface for quick and accurate temperature conversions.