The best alternatives to Airfoil are Dabel, Weezzler, and LiveVoice. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of Airfoil?
AssemblyAI— Speech-to-Text API with superhuman accuracy
Live audio streaming platform where the speaker can invite any listener to join the conversation. Just hit a button and start recording; the stream will be automatically saved for you to share.
LiveVoice.io is the smart app solution for audio streaming like simultaneous translation, silent events, guided tours and more. No extra hardware needed: Live voice speaker and listener just use their smartphones or computers. Works via WIFI and mobile data.
DoCast is the app for seamless screen mirroring from your iPhone or iPad to your TV. Enjoy screen sharing between your iPhone or iPad and your TV using Chromecast technology, whether built-in to your TV or through a separate device.