192+ iOS apps curated and reviewed
Out of 192+ length converter app on iOS, 18 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | — | Yes | No | May 2026 |
| 2 |  | Free | 4.8★ (172K) | Yes | Yes | Jul 2026 |
| 3 |  | Free | — | No | Yes | May 2026 |
| 4 |  | Free | 3.6★ (150) | Yes | Yes | Jul 2026 |
| 5 |  | Free | 4.6★ (13K) | Yes | Yes | Jul 2026 |
| 6 |  | Free | 4.8★ (15K) | No | No | Jul 2026 |
| 7 |  | Free | 4.7★ (15K) | Yes | Yes | Jul 2026 |
| 8 |  | Free | — | Yes | Yes | May 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.
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 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 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.
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 for length, weight, volume, temperature, and more. This tool simplifies calculations for everyday needs and specific applications.
This app offers a comprehensive unit and hardness conversion tool with an easy-to-use interface. It includes currency conversion with updated exchange rates, over 300 engineering and scientific units, and a specialized hardness converter. Additional features like timezone conversion, pace calculation, and a standard calculator enhance its utility.
Easily convert lengths between various units including feet, inches, meters, decimeters, centimeters, and millimeters. This tool is designed for quick and accurate conversions for a wide range of users.
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 various units of measurement with this free utility app. It supports conversions for length, area, volume, mass, time, digital storage, energy, and currency.
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.
Convert lengths between modern and historical units, including ancient civilizations. Offers smart formatting, custom precision, and a favorites list for frequently used conversions. Supports iPhone, iPad, and Mac.
This app offers a comprehensive unit conversion tool with support for over 500 units across 20 categories. It includes special units for various Asian regions and provides convenient operation modes, sharing capabilities, and customizable themes.
Easily convert between various units of measurement across 15 categories, including length, mass, volume, speed, and temperature. Offers a premium subscription for advanced features and an ad-free experience.
This utility app offers a simple and powerful way to perform various unit conversions. It supports a wide range of categories and allows users to request new conversions to be added. Available on iPhone and iPad, it's designed for ease of use.
