Mayank Bidawatka, co-founder of Koo, has launched PicSee, a new photo-sharing app for iOS and Android. PicSee automatically detects and shares photos of friends in your camera roll without needing a messaging system. Users can send sharing requests to friends, and the app detects and sends new photos of them, with a 24-hour review period. The app prioritizes privacy with on-device face detection, encrypted connections, and no cloud storage. Billion Hearts, the company behind PicSee, raised $4 million in funding last year. PicSee aims to address social engagement by adding chat features, album creation, and integration with Google Photos/iCloud, along with face detection for videos.