Gravity is a notes app built on Andrej Karpathy's append-and-review note. Everything goes into one list, newest at the top. Old notes sink, and a swipe brings one back. You pay once, and your notes stay on your devices. New since the last launch: live Markdown, checklists, full exports, and a gravity CLI on the Mac that lets Claude Code, Codex or your own scripts read and write your notes. For iPhone, iPad, Mac and Android.

Gravity is a private, ultra-fast notes app with one stream and a simple rule: bump what matters. Forget folders and tags, just open and type. Instant capture with shortcuts keeps your flow, while older notes naturally drift down. If something is still relevant, hit bump to bring it back to the top. It syncs via iCloud with no accounts, tracking, or subscriptions. Inspired by the Karpathy method, Gravity isn't a complex second brain. It's just your thoughts. Stop organizing and start thinking.