CrazyThu

CrazyThu is an unofficial iOS client for Tsinghua Tree Hole (New T Hole). New T Hole is open to current students and alumni of Tsinghua University in Beijing. You can sign in using a student or alumni email address. If you are already signed in on the web, you can copy your token and use it on the app's sign-in page. You can also link your university email address to GitHub for indirect verification. The app stores tokens and other authentication information locally and does not upload them to third-party servers.

CrazyThu supports browsing the timeline, trending posts, and curated posts; reading comments; viewing images and polls; and basic text posting and commenting.

Nearby provides public local chat over Bluetooth mesh networking. Nearby devices can discover, receive, and relay messages without an internet connection. Nearby identities are unverified and messages are not private.