Aiko is an on-device transcription app that converts speech to text from meetings, lectures, and more. Powered by OpenAI's Whisper model, it supports audio in over 100 languages and ensures complete privacy. Aiko includes upcoming features such as batch conversion, improved performance on iOS, and integration with ChatGPT. While it does not support editing, it offers better accuracy and transcribes audio and video files with the option to export to various formats.