192+ iOS apps curated and reviewed
Every iPhone needs a few good lbs to kgs apps. We benchmark 192+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 |  | Free | 4.8★ (172K) | Yes | Yes | Jul 2026 |
| 2 |  | Free | 4.7★ (60) | Yes | No | Jul 2026 |
| 3 |  | Free | 4.8★ (10) | No | No | May 2026 |
| 4 |  | Free | 3.6★ (8) | Yes | No | Jul 2026 |
| 5 |  | Free | 4.6★ (16K) | No | Yes | Jul 2026 |
| 6 |  | Free | 4.6★ (13K) | Yes | Yes | Jul 2026 |
| 7 |  | Free | — | Yes | No | May 2026 |
| 8 |  | $0.99 | — | No | No | 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 pounds to kilograms with this straightforward utility. It offers a simple and user-friendly interface for quick unit conversions.
Easily calculate weight for barbells and manage your gym equipment. Convert between pounds and kilograms, track your plate inventory, and calculate your 1 Rep Max. This tool simplifies gym calculations for all users.
Easily convert weights between pounds, kilograms, and grams. This free tool is optimized for iPhone and provides quick conversions for travelers needing handy information on the go.
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.
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 kilograms and pounds in either direction. This utility requires no internet connection and no special device permissions to function.
Easily convert between various weight units in real-time. This tool is designed for quick and hassle-free conversions, suitable for a wide range of users.
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 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 transforms your device into a digital kitchen scale. Weigh ingredients and manage your cooking with precision. It's a handy tool for any culinary enthusiast.
Easily convert between pounds and kilograms with this versatile utility app. It also offers a wide range of other conversion tools for weight, length, currencies, time, and temperature.
Easily convert weights between pounds and grams with this straightforward utility. Customize the number of decimal places for your conversions.
Easily convert kilograms to stone and pounds with this straightforward utility. Simply select your starting unit, enter the value, and get instant conversion results.
Estimate the weight of objects using only your phone's camera. This AI-powered app transforms your device into a smart scale, providing instant weight and size estimates for various items from food to furniture. It also offers additional tools like text translation and calorie detection.
Record and track family weight data with a smart scale. Visualize progress with charts and reports, and sync with Apple Health. Supports up to 24 users for comprehensive family fitness monitoring.
This app acts as your personal keto coach, offering a powerful macro tracker with hundreds of recipes and diet tips. Easily log food using voice recognition or a barcode scanner, and receive a custom weight loss plan to reach your goals faster.