Koe App is an AI-driven web application designed for secure audio and video transcription services. Supporting various formats like mp3, wav, and mp4, it utilizes OpenAI's Whisper model for local transcriptions, ensuring user privacy. The app also features an API for seamless integration, enabling faster speech-to-text functionality. Additionally, users can generate subtitles from transcriptions and utilize voice dictation for efficient content creation.

The app offers AI-powered translation services through ChatGPT, although this feature does require data to be sent to OpenAI's servers. Koe App is available under a lifetime license model, with a 14-day refund policy for unsatisfied users. While the initial release occurred on November 19, 2023, feedback on accuracy and options has been limited, suggesting areas for improvement.