Airfoil Alternatives

SoundWire does audio mirroring (audio cast). You can use any music player on your PC or laptop like Spotify, YouTube, or iTunes and stream low-latency live sound over WiFi directly to your Android device.

Listen to your PC audio, use your phone as a mic or stream audio from your phone

freemium

Warmup Inbox is a tool that automates the process of warming up your email inboxes, raising your sender reputation and inbox health automatically.

Try for free paid Free Trial $12.0 / Monthly (Per inbox, per month.)

Stream What You Hear.

AirPlay lets you stream music throughout your entire house — wirelessly.

TuneBlade - Stream audio to Airport Express, Apple TV, AirPlay compatible speakers and HiFi Receivers.

AirParrot is an interesting piece of software that allows you to view content from your Mac desktop through your television set if you have an Apple TV that can act as a bridge between the two devices. Read more about AirParrot.

Huge range of supported formats.

Play all audio from your Mac through multiple AirPlay speakers at the same time. iOS 11 and macOS 10. 13 High Sierra both add multi-room AirPlay support to the operating sytem, making Porthole redundant.

AirPlay Mirror your computer screen and sound to your Apple TV or ChromeCast just like you AirPlay your iPhone/iPad display

RaopX is software that is designed to stream any audio of your PC from your Apple devices by configuring both devices with their IP address.

AudioStreamer is a free web-based audio streamer which gives you easy access to your music.

It is an AirPlay-compatible audio receiver that are capable of receiving the audio files from the PC, iDevices, and any AirPlay compatible platforms.

Chromecast local files from Linux - supports MKV, subtitles and 4K!