Support

A to-do app with an ocean in it. Every task you add drops a piece of litter into your personal aquarium. Finish it and the litter is cleaned up, you earn shells and the water gets clearer. Let tasks slip and the water clouds over.

Krll is free to use. Delphis is optional and arrives with the official launch — $2.99 a month or $24.99 a year (save 30%) — and adds no ads, no daily task limit, up to 20 projects, repeating tasks, your whole archive, custom colors, friends as editors and offline use.

Your private tasks are stored in your own iCloud account and sync between your Apple devices. Tasks you share with friends are end-to-end encrypted, so only the people in the project can read them — not even Krll. Contacts are matched with one-way hashes and never leave your phone in readable form. The free plan shows ads. See our Privacy Policy for details.

Krll is an iPhone app, currently in beta on TestFlight — tap Try Krll at the top of this page to join. Your private tasks sync between your Apple devices through your iCloud account.

Yes. Add friends by Krll ID, from your contacts or by invite link, then share a project with them. Shared projects are end-to-end encrypted and need a connection to edit. On the free plan friends join as viewers; with Delphis they can edit too.