182+ iOS apps curated and reviewed
Looking for free flow rate converter apps? 14 of our 182+ 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 |  | $0.99 | 5.0★ (1) | No | No | May 2026 |
| 2 |  | Free | 4.7★ (47K) | Yes | No | Jul 2026 |
| 3 |  | Free | 4.8★ (122K) | Yes | No | Jul 2026 |
| 4 |  | Free | 4.9★ (126K) | Yes | No | Jul 2026 |
| 5 |  | $2.99 | 3.0★ (1) | No | No | May 2026 |
| 6 |  | $9.99 | 4.8★ (5.1K) | No | No | Jul 2026 |
| 7 |  | Free | 4.6★ (16K) | No | Yes | Jul 2026 |
| 8 |  | Free | 4.3★ (210) | No | No | Jul 2026 |
This utility app calculates flow rates in milliliters per hour based on substance concentration and dosage. It can also determine the required dosage for a set flow rate. Features a user-friendly interface and an iPad widget for quick calculations.
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 send money internationally to over 200 countries and 100+ currencies. Get competitive rates, track transfers, and choose flexible payment and payout methods. Millions trust this app for fast, secure, and reliable global money transfers.
Easily convert currencies with real-time exchange rates for over 150 global currencies, including cryptocurrencies. This app offers a simple interface and offline functionality, making it ideal for travelers. Exchange rates update automatically, and conversions happen as you type.
Easily convert between various units of flow rate, including volume-based, mass-based, and mole-based measurements. Essential for physics and engineering applications involving fluid dynamics and hydrometry.
This app offers a fast and intuitive way to convert between thousands of units and currencies. Simply type to search and select units, with automatic category detection and intelligent suggestions. It includes advanced features like a built-in calculator and bookmark organization.
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 a wide range of units for length, area, mass, temperature, volume, and more. This app offers a comprehensive set of conversion tools for everyday and professional use.
Effortlessly convert between hundreds of units across 26 essential categories with this precision calculator. Designed for speed and simplicity, it offers accurate results in seconds for students, professionals, and travelers alike. Enjoy offline functionality and a customizable experience.
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 comprehensive solution for converting units across more than 20 common categories, including over 400 units. It supports mixed units and currency exchange with real-time updates, making it useful for work, study, and daily life. The app features a scientific calculator and a user-friendly interface.
This app offers a comprehensive unit and currency conversion tool with a visually appealing interface and extensive unit options. It supports standard and non-standard units, compound conversions, and fraction input, making it versatile for various needs.
Easily convert between various units and currencies with a simple, intuitive interface. Features live currency updates for 155 world currencies, refreshed every 15 minutes. Optimized for a wide range of Apple devices, including iPads with Split View support.
Easily convert units across 22 different measures with this intuitive tool. It supports converting a single unit to up to three others simultaneously, offering over 12,000 conversion pairs for various needs.
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.
Calculate fluid flow rate and pressure loss in pipes. This app helps engineers determine pipe diameter, maximum pipe length, and friction loss for both liquid and gas flows, including fittings and elevation changes. Results can be shared as Excel or PDF reports.
This app offers a comprehensive unit and currency converter with over 1500 units across 65 categories. It features advanced search, customization, and two conversion modes for convenience, performing calculations as you type.
Easily convert over 700 units across 30 categories with this powerful tool. It offers a user-friendly interface, dark mode support, and a backspace key for quick corrections. Save time on all your measurement conversion needs.
This app offers an enhanced unit conversion experience with a beautiful interface and extensive customization. It provides over 700 units across 30 categories, advanced search and filtering, and shortcuts for quick conversions. It also supports widgets and Apple Watch for convenient access.
Calculate hydrant flow rates and determine maximum water system flow. This tool uses a standard variation of the Hazen-Williams formula for calculations. Imperial units are currently supported, with metric coming soon.