Built to know less about you, not more.
A private system for the parts of life you don't share.
The premise
Most software today is built to learn everything it can about you, because that's how it makes money. heller is built the other way - every product designed so it doesn't need to know, and couldn't sell what it doesn't have.
On your phone
Write it down before you forget it.
Notes stays as fast as the thought you're trying to keep. Open it, write, close it - already saved, already encrypted, before you've locked your phone again.
Mobile - all notes
Mobile - note open
On your Mac
The same words, more room to think.
The desktop app isn't a bigger phone screen. It's built for longer writing, faster switching between notes, and getting out of the way once you've started.
Early exploration - heller Notes
Private by construction
No recovery, by design.
If we could reset your password, so could someone else. heller doesn't hold a spare key to your Personal or Professional vault - not because we chose not to build one, but because we chose not to be able to.
Architecture
Privacy is a limit, not a promise.
heller, built from years of ideas.
The first experiments began in autumn 2025, exploring what heller could become and the principles it would stand for.
Those ideas are taking shape in Notes: a place to capture a thought, and the first product we’re building.
The foundation
Free isn't the trial. It's the foundation. Every person using heller without paying is why the people who do pay can trust it.
Encryption
powered by
AES-256Key derivation
powered by
Argon2Early access
Be early.
We're building in the open, slowly, on purpose.
Sign up for an invitation to test an early version and share your feedback.