The K apps share what matters and work the same way.

Each app is useful by itself. Installed together, they share an identity, an AI model and their habits.

One recovery phrase covers every K app.

The K apps on one device share one identity and one 24-word recovery phrase. You write the phrase down once.

On Android, the phrase opens your .kept files again after a reinstall or on a new phone.

A .kept file is a private copy that only you can open.

Each of the four apps can seal a file of its own kind into a .kept file: a photo in K Photos, a document in K Docs, a scan in K Scan, a recording in K Audio. The file is sealed with strong encryption, and the key stays with you.

Opening a .kept file is always free.

Read what a .kept file is

One Writing pack serves three apps.

The writing model is large, so it is installed once. K Docs uses it to proofread and summarize. K Scan uses it to clean up recognized text. K Audio uses it to turn a transcript into notes.

Each app opens the files of its kind.

Android's Open with list offers the right K app for a file: K Photos for photos and videos, K Docs for PDF, Word and Markdown files, and K Audio for sound files. K Audio can also take the sound out of a video.

Learning one app teaches you the rest.

  • Press and hold an item to see its options.
  • Delete comes with Undo in every app.
  • A long job shows in the Tasks list and in a notification, with a Cancel button.
  • Settings look the same in every app, with dark, light and match-the-device themes.
  • One folder picker serves every app.

Each app stands alone.

No K app needs another one installed, and none needs an account.