Atoms is the official companion app to James Clear's Atomic Habits, the 2018 habit-change book that Clear's site now says has sold more than 30 million copies worldwide.^1 Clear and Tiny launched the app in 2024 with design support from MetaLab, and the first-party site is still atoms.jamesclear.com.^3
The product follows the book's four laws — make it obvious, attractive, easy, and satisfying. You name the kind of person you want to become, then commit to a small starting action, a time, and a place.^4 Daily lessons from Clear sit next to reminders you can pin to the habit itself or spread through the day, plus progress insights meant to take about five minutes.^4 It is not about a perfect streak from day one; the site emphasizes consistency and adjusting habits that are not sticking.^4 Apple Watch logging is listed on the App Store page; Android has the official Play listing from Atoms.^5
It is a freemium, subscription-based habit coach, not a church product. Clear also published The Atomic Habits Workbook, an interactive companion with prompts and tracking templates, if you want the same framework on paper alongside the app.^7
