CanvasRunner Makes Tiny Personal Apps for Your Phone

Field notes

CanvasRunner accepts self-contained app text copied or shared from Claude, ChatGPT, Gemini, or another source, then places it in a local Android sandbox. The documented flow includes naming confirmation rather than automatic creation, home-screen pinning, offline persistence, and an Inspector with JavaScript, network, and storage views. The site gives examples such as a five-day Lisbon planner and a habit tracker, while stating that local app data stays on the phone and that account backup is optional.