About

Airfoil, developed by Rogue Amoeba, is a versatile freemium and proprietary audio streaming application primarily for Mac, with support for Windows and iOS via its Airfoil Satellite app. It enables users to send any audio source, from music services like Spotify and Pandora to web browsers and system-wide audio, to multiple AirPort Express units, Apple TVs, Bluetooth speakers, and other computers or mobile devices simultaneously, ensuring synchronized playback. Key features include a clean design, AirPlay support, a system-wide equalizer, and the ability to control volume for digital outputs (like TOSLINK) that typically lack this. Airfoil also offers unique capabilities to correct audio sync problems, which are often challenging with AirPlay alone, and allows on-the-fly management of connected network devices. While praised for its robust functionality and support for older iOS versions (e.g., iOS 9), some users have noted intermittent audio pitch distortion, stuttering under heavy system load, and a fixed 2-second audio buffer. Rogue Amoeba is recognized for its strong customer support, offering personal email assistance and listening to user feedback, and operates on a paid, non-subscription model with discounted upgrades, emphasizing user ownership over data mining. It positions itself as a leading solution for advanced, synchronized multi-room audio streaming, offering capabilities beyond native macOS audio routing.