onLM is a powerful AI chat app that runs entirely on your iPhone and iPad — no cloud, no servers, no data collection. Every conversation stays on your device, always.
"The most private way to use AI on iOS."
Your conversations never leave your device. No accounts, no analytics, no tracking — ever. When you delete the app, everything disappears with it.
Download a model once, then use it anywhere — on a plane, in the mountains, or simply off the grid. No internet required for conversations.
Pick from 10+ open-source language models optimized for mobile, or use Apple Intelligence on supported devices. Switch models anytime.
Download the app, pick a model, start chatting. No monthly fees, no token limits, no paywalls.
onLM offers a curated selection of the best open-source models, optimized for on-device performance with 4-bit quantization.