PaperPlane is a fully offline P2P file transfer app for Android. Zero accounts, zero cloud, zero data collection — files move directly between devices over local WiFi, so your only limit is your wifi speed.
What stands out: a stripped-down UI designed for non-technical users, chunked transfers with phase-based timeout handling that eliminate drops on 30MB+ files, and the fact that it was built solo, end-to-end, by a second-year CS student.
