Build better habits, one day at a time.

Atomi is a beautifully simple habit tracker built on the proven science behind Atomic Habits. Whether you're starting a morning meditation, daily exercise routine, or any positive habit — Atomi makes tracking effortless and rewarding.

WHY ATOMI?

Most habit trackers overwhelm you with features. Atomi does the opposite — it focuses on what actually works: making habits obvious, easy, and satisfying. Every design decision is guided by the four laws of behavior change.

FEATURES

• Daily checklist — See today's habits at a glance. One tap to mark complete.
• Smart cues — Attach triggers to each habit ("After morning coffee", "Before bed") so you never forget.
• Streak tracking — Watch your consistency grow with visual streak counters and a 7-day progress trail.
• Calendar view — See your completion history month by month with color-coded dots.
• Heat map — A GitHub-style contribution grid that shows your effort over time.
• Progress charts — Weekly and monthly bar charts that reveal your patterns.
• Achievements — Earn badges and XP as you build consistency and hit milestones.
• Dark mode — Full light and dark theme support, plus system auto-switching.
• 100% offline — All data stays on your device. No account required. No sign-up.
• Local backup — Export your data as JSON or CSV.

BUILT ON SCIENCE

Atomi integrates the four laws of behavior change from Atomic Habits into its design:

1. Make it obvious — Set clear cues and reminders
2. Make it attractive — Streak motivation keeps you going
3. Make it easy — One-tap tracking, no complexity
4. Make it satisfying — Visual progress rewards your effort

PRIVACY FIRST

Your habit data never leaves your phone. No accounts, no cloud sync, no tracking. Just you and your habits.

Atomi is an independent app inspired by the book Atomic Habits by James Clear. It is not affiliated with, endorsed by, or officially connected to James Clear or the Atomic Habits brand.