248+ iOS apps curated and reviewed
Looking for free unit converter apps? 20 of our 248+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.8★ (191K) | Yes | Yes | Aug 2026 |
| 2 |  | Free | 4.6★ (16K) | No | Yes | Aug 2026 |
| 3 |  | Free | 4.6★ (13K) | Yes | Yes | Aug 2026 |
| 4 |  | Free | 4.7★ (47K) | Yes | No | Aug 2026 |
| 5 |  | Free | 4.8★ (932) | Yes | No | Aug 2026 |
| 6 |  | Free | 4.9★ (18) | No | No | Jul 2026 |
| 7 |  | Free | 4.0★ (2) | No | No | May 2026 |
| 8 |  | Free | 5.0★ (1) | No | Yes | Jul 2026 |
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.
This app offers a powerful and user-friendly unit converter with 16 categories, including currency, length, and temperature. It allows for custom unit lists and provides live exchange rate updates for 148 currencies. Unlock all features with a one-time in-app purchase.
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.
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.
Easily convert between various units of measurement including length, weight, temperature, and currency. Features automatic currency updates, a vast selection of currencies, and customizable display options for accuracy and rounding. Optimized for multitasking on iPad and offers a beautiful dark design.
Easily perform instant unit conversions across a vast array of categories, from engineering to everyday life. Features include dark mode, favorites, and dual language support for enhanced usability. Ideal for scientists, engineers, students, and anyone needing quick, accurate conversions.
Easily convert between various units of measurement across 12 categories including length, mass, temperature, and digital storage. Ideal for cooking, personal measurements, or general calculations.
This app offers a simple and intuitive interface for converting various units of measurement. It categorizes essential units for daily life, living, science, and miscellaneous needs, with built-in currency conversion and math calculators.
This app offers a comprehensive unit and currency converter with a vast array of categories and calculators for everyday needs. It allows users to customize templates, download shared ones, and provides automatic exchange rate updates for 167 world currencies.
Easily convert between metric and imperial units for weight, length, temperature, area, and time. This app offers precise, fast results with a clean interface, working offline for daily, travel, school, or work needs.
Easily convert between hundreds of units across 43 categories, including currency with daily updated rates. Customize your workflow by hiding or reordering units and categories.
Easily convert over 160 currencies and 350 physical units with real-time updates and offline capabilities. Create a favorites list for quick access to frequently used conversions and enjoy geo-based currency options. An ad-free version is available for purchase.
This app offers a wide range of unit conversions for various measurements, from temperature to length. It features a user-friendly interface, customizable themes, and smart features that remember your frequent conversions. It also links to external apps for specialized tasks.
This app provides a comprehensive unit and currency converter with a user-friendly interface. It offers offline functionality, supports over 30,000 unit conversions, and includes more than 160 currencies with live exchange rates. Users can save favorite conversions and get precise results.
Effortlessly convert currencies, weights, sizes, distances, and more with this intuitive unit converter. Features voice input and the ability to save favorite conversions for quick access. Offers a comprehensive solution for all your conversion needs.
A straightforward unit converter designed for ease of use and efficiency. It offers a wide range of conversion options without any advertisements, saving battery and data. All conversions are performed on a single, intuitive screen.
Easily convert between various units with this offline utility. View all conversions simultaneously without needing to switch screens, making it incredibly straightforward to use.
Easily switch between metric and imperial measurements for length, area, mass, temperature, and more. This tool offers quick, accurate conversions with an intuitive interface and offline functionality.