Hey everyone,

Honestly, I built this because I kept losing stuff in my own notes app.

Not losing it as in deleted. It was all still there. I just couldn’t find it. I’d remember writing something down months ago, search for it, and get nothing, because I’d used completely different words back then.

The one that got me was searching “burned out.” Nothing came up. Then, scrolling forever, I found it: “exhausted from my job.” Same thought, different words. I’d been looking right past it.

So I made Cairn. You throw a thought in, and later you search for whatever comes to mind and it finds the right one. Typing “trouble sleeping” brings up “lay awake until 2am.”

It also reminds you about stuff you said you’d do and kind of forgot. And sometimes an old note just pops back up when you write something similar, which is weirdly nice when it happens.

The AI runs on your phone, so your notes stay with you. No account either.

It’s free. There’s a one-time unlock if you want the extra bits. No subscription.

It’s still early, so if anything feels off, please tell me. And I’m curious: has this happened to you too, where you know you wrote it down somewhere but just can’t find it?