Kadō
A privacy-first open source habit tracker for iPhone and iPad with a non-binary habit score, optional iCloud sync, and no account or subscription.
Kadō is an open source (MIT) habit tracker for iPhone and iPad with three core commitments: a non-binary habit score instead of a fragile streak, complete data privacy, and a fully native Apple experience. It is built entirely in SwiftUI with SwiftData for local storage, and has zero third-party dependencies.
The habit score — an exponential moving average inspired by Loop Habit Tracker on Android — rewards long-term consistency instead of punishing a single missed day. Habits can be binary, counters, or timers, on daily, N-days-per-week, specific-weekday, or every-N-days schedules, and any past day can be edited directly from the monthly calendar. The app ships with Home Screen and Lock Screen widgets, Siri and Shortcuts support, per-habit reminders, per-day notes, and an overview matrix of all habits across days.
Where paid iOS trackers like Streaks or Habitify are closed source and streak- or subscription-centric, Kadō is free with no account, no subscription, and no telemetry. All data stays on device, sync is optional and goes only through your own private iCloud database, and lossless JSON and CSV export keeps you in control of your data. An optional Tip Jar exists but unlocks nothing — the entire app is free.
