AssemblyAI is described as 'Is API for speech recognition. They’ve built “accurate, simple and customizable” technology that the team claims is what “Stripe did to payments,” but for speech. The voice technology industry is growing fast, due to the popularity of Siri, Alexa and Google Home' and is a audio transcription tool in the audio & music category. There are more than 50 alternatives to AssemblyAI for a variety of platforms, including Web-based, Mac, Windows, SaaS and iPhone apps. The best AssemblyAI alternative is FUTO Voice Input, which is both free and Open Source. Other great apps like AssemblyAI are Whisper, Aqua Voice, Whisper-Zero and Otter.ai.