Kettra: Habit Tracker

Tick off in the widget

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

The home screen widget shows your chains and takes the tap right there, without opening the app. No account, no server, everything stays on your device. Kettra turns every habit into a chain. Each day you tick off is one link. The chain grows for as long as you keep going, and that is the thing you will not want to break. TICK IT OFF WITHOUT OPENING THE APP • The home screen widget shows your chains and takes the tap right there • Lock screen widgets, for the glance in between • A second widget shows how much you kept over weeks or months • Straight from the notification • With Siri: "Tick off a habit in Kettra" • And of course with one tap in the app YOUR RHYTHM • Daily, on fixed weekdays, or a few times a week • Several times a day, with a count instead of a tick • Pause for a holiday or an illness: paused days do not break the chain NOTHING IS SET IN STONE • Fill in or take back a past day with a long press • Add a note to a day when the chain had a reason • Rename, reorder, delete, whenever you like WHAT YOU SEE • The week as a grid of chains, every habit in its own colour • Current chain, longest chain, and the total • Milestones from 2 days to 365, with the next one always in view REMINDERS THAT FOLLOW YOU • Fixed times, set per habit • Optionally, the reminder moves to the time you actually tick the habit off • "Chain at risk": one message, on the day there is genuinely something to lose YOUR DATA STAYS YOURS No account, no server, no sync, no ads, no trackers. Everything lives on your device. You can export all of it as a CSV file at any time, and if you delete the app the entries go with it. LIGHT OR DARK Kettra follows your phone, or you set it yourself. KETTRA PRO Kettra Pro opens with seven days free. After that you can create as many habits as you want, still without an account and still on your device only. Cancel any time in your App Store account settings. Days you have already logged stay readable and editable even after you cancel. Kettra is built for iPhone and for nothing else.

Ratings & Reviews

  • This app hasn’t received enough ratings or reviews to display an overview.

Kettra Pro is now the way in. Seven days free, then as many habits as you want — still no account, still only on your device. Days you have already logged stay readable and editable after you cancel. The yearly plan now shows its saving with a percent sign.

Version 1.0.1

The developer, Maximilian Kuchlbauer, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    Maximilian Kuchlbauer
    Size
    2.4 MB
    Category
    Health & Fitness
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    English and German
    Age Rating
    9+
    In-App Purchases
    Yes
    • Kettra Pro Monthly $3.99
    • Kettra Pro Yearly $24.99
    • Learn More
    Copyright
    © 2026 Maximilian Kuchlbauer
  • Developer Website
  • Privacy Policy

    • More by Maximilian Kuchlbauer

    You Might Also Like