246+ iOS apps curated and reviewed
Looking for free unit converter apps? 19 of our 246+ 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★ (192K) | Yes | Yes | Aug 2026 |
| 2 |  | Free | 4.7★ (48K) | Yes | No | Aug 2026 |
| 3 |  | Free | 4.6★ (16K) | No | Yes | Aug 2026 |
| 4 |  | Free | 4.7★ (1.4K) | Yes | No | Aug 2026 |
| 5 |  | Free | 4.6★ (13K) | Yes | Yes | Aug 2026 |
| 6 |  | Free | 4.9★ (18) | No | No | Jul 2026 |
| 7 |  | Free | 4.8★ (81K) | Yes | Yes | Aug 2026 |
| 8 |  | Free | 5.0★ (2) | No | Yes | Aug 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.
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.
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 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 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 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 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 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.
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 comprehensive suite of conversion tools for various units and currencies. It simplifies complex calculations across physical dimensions, mass, time, energy, electricity, and more. Ideal for students and professionals needing precise measurements.
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.
This versatile tool simplifies daily tasks by offering quick and reliable conversions for over 20 unit types. Its clean, intuitive interface makes converting measurements easy for students, professionals, and travelers alike. Enjoy offline functionality and a lightweight design that won't drain your device's resources.
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.
Easily perform calculations for over 19 categories of units used in daily life. This offline, free application offers a unique design and user-friendly interface for fast and accurate results.
This utility app offers conversions for over 110 units across 10 categories. It was last updated in early 2011 and plans to add more units and categories in a future summer update.
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.
This app offers a comprehensive unit conversion tool with a clean interface and extensive customization options. It supports offline use and includes a currency converter, making it a versatile utility for various conversion needs.