249+ iOS apps curated and reviewed
If you already know Unit Converter, this is the deeper bench. 249+ length converter apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of August 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.8★ (192K) | Yes | Yes | Aug 2026 |
| 2 |  | Free | — | No | Yes | Aug 2026 |
| 3 |  | Free | 4.8★ (15K) | No | No | Aug 2026 |
| 4 |  | Free | — | Yes | No | May 2026 |
| 5 |  | Free | 4.7★ (1.9K) | No | Yes | Aug 2026 |
| 6 |  | Free | 4.6★ (16K) | No | Yes | Aug 2026 |
| 7 |  | Free | 4.7★ (48K) | Yes | No | Aug 2026 |
| 8 |  | Free | 4.7★ (42) | 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.
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 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.
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.
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.
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.
Easily convert between various units of length, from micrometers to miles. Includes a built-in calculator for added convenience.
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 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 a vast array of units used globally. This utility app aims to support the most common units and plans to add more over time. It's designed for quick and accurate conversions.
Easily convert measurements across various categories like temperature, length, and volume. This app offers accurate results with a user-friendly interface, supporting both metric and imperial units.
