211+ iOS apps curated and reviewed
Looking for free unit conversion free apps? 19 of our 211+ 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★ (190K) | Yes | Yes | Aug 2026 |
| 2 |  | Free | 4.7★ (47K) | Yes | No | Aug 2026 |
| 3 |  | Free | 4.6★ (13K) | Yes | Yes | Aug 2026 |
| 4 |  | Free | — | No | No | Jul 2026 |
| 5 |  | Free | 4.6★ (16K) | No | Yes | Aug 2026 |
| 6 |  | Free | 4.7★ (15K) | Yes | Yes | Aug 2026 |
| 7 |  | Free | 4.8★ (932) | Yes | No | Aug 2026 |
| 8 |  | Free | 3.6★ (150) | Yes | 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.
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.
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.
This app is a versatile unit and currency converter with a user-friendly interface. It supports a wide range of conversion categories, including real-world and crypto currencies, with automatic exchange rate updates. Customize your experience with design options, dark mode, and adjustable home screen layouts.
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 hundreds of units across 43 categories, including currency with daily updated rates. Customize your workflow by hiding or reordering units and categories.
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 hundreds of units and currencies with lightning-fast results. This app offers an ultra-sleek design and supports various unit variations for US, UK, and Canada. Quickly find and convert with its intuitive search feature.
This app simplifies unit conversions with a wide range of tools. Easily convert currencies, weights, measurements, and time with a user-friendly interface. It's designed for quick and accurate calculations.
Easily convert between over 1000 units across 17 categories, including currency with live rates. Save frequent conversions and access them quickly via a widget. Enjoy fun facts related to units while you convert.
Easily convert over 100 units across various categories like temperature, length, and weight. View conversion formulas, copy results, and share them directly. Enjoy a private, ad-free experience with a native iOS design.
This application provides a comprehensive tool for converting a wide range of metric units across various categories. It's designed for everyday use, financial transactions, and professional applications in fields like real estate and engineering.
Easily convert between 76 measurement units across eight common types, including length, weight, temperature, and volume. Features a built-in calculator and optional currency conversion with daily exchange rate updates.
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.
This app offers a fast and user-friendly way to convert units and currencies. Customize your conversion lists and get instant results as you type, with support for over 350 units and 160 currencies. It also includes a built-in calculator and offline currency data.
This app offers a comprehensive unit conversion tool with over 300 units across 27 categories. It supports compound units, date calculations, and conversions between various number systems, including historical units. The interface is designed for ease of use with smart keyboards and customizable display options.
This app offers a simple and powerful way to convert between over 140 units across 12 categories. Easily switch between units, customize your experience with themes, and share your results.
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.