Letterly is described as 'Mobile app that converts any speech to clear and well-structured text. It's more than just a transcription. With the help of AI, you can transform your voice into structured notes, catchy social media posts, readable meeting summaries, formal emails and much more' and is a audio transcription tool in the office & productivity category. There are more than 100 alternatives to Letterly for a variety of platforms, including Web-based, Mac, iPhone, iPad and Windows apps. The best Letterly alternative is Vibe Transcribe, which is both free and Open Source. Other great apps like Letterly are Handy STT, FUTO Voice Input, Voxtral and Hyprnote.