Sloth Roll turns iPhone screenshots into calendar events, places and expenses on-device

Sloth Roll is an iPhone app built for the Hacktoberfest Open-Source AI Challenge that reads screenshots with an open-weight vision model running locally on the phone. Each screenshot becomes a swipeable card that adds an event to Calendar, opens a place in Apple Maps, or saves a receipt to an in-app expense list. The app also flags blurry, duplicate or unhelpful screenshots for one-tap deletion through iOS's Recently Deleted flow. Processing happens entirely on-device after a one-time model download of about 1.8 GB, so it works offline. In a test scan of 50 new images, the app read 43 and found 19 actions in roughly 3.7 minutes.