BBaseRebuild

The app for James Clear's 4 Laws

Atomic Habits built into your daily routine.

James Clear's book teaches the 4 Laws of Behavior Change — Make it Obvious, Make it Attractive, Make it Easy, and Make it Satisfying. BaseRebuild is the habit tracker that implements every single one. Get 1% better every day, for free.

12,000+ rebuilders2M+ habits trackedFree forever plan

Your Atomic Habits

Day 47 of your rebuild

37% better this month
Morning pages47 days
1Make it Obvious·6:00 AM
Read 10 pages32 days
2Make it Attractive·After lunch
Two-minute stretch47 days
3Make it Easy·After coffee
Track streak47 days
4Make it Satisfying·Before bed

AI Coach: “You've shown up 47 days straight. You're not building habits — you're becoming someone who never misses. That's identity change in action.”

The 4 Laws of Behavior Change, built in.

James Clear's framework isn't theory — it's engineering. Every feature in BaseRebuild maps to one of these laws so your habits form automatically.

1Make it Obvious

The cue triggers the habit. If you don't see it, you won't do it.

Habits run on cues — time, location, preceding action, emotional state, or other people. Making the cue obvious puts the habit on autopilot. Hiding the cue (for bad habits) makes relapse harder.

Time-based reminders

Set an exact time for each habit. BaseRebuild sends a push notification so the cue finds you, not the other way around.

Habit stacking

Link new habits to existing ones: 'After [current habit], I will [new habit].' Group them in your dashboard so they appear together.

2Make it Attractive

The more attractive the opportunity, the more likely it is to become habit-forming.

Dopamine rises not when you receive a reward, but when you anticipate it. Temptation bundling — pairing a habit you need to do with one you want to do — hijacks this circuit for good habits.

Beautiful dashboard

A clean, dark-mode interface that feels good to open. No clutter, no ads, no nagging. Just your habits and your progress.

Visual progress

Calendar heatmaps fill with color as you build consistency. Watching the grid light up is its own anticipation reward.

3Make it Easy

The less friction, the more likely you are to follow through.

The Two-Minute Rule: scale any habit down to a version that takes two minutes or less. Master showing up before you master the skill. Reduce the steps between you and the habit to near zero.

Two-minute starts

Name your habit with the tiny version: 'Put on running shoes' not 'Run 5K'. Check it off in one tap. Momentum handles the rest.

One-tap check-ins

Open the app, tap the circle, done. No forms, no notes required, no friction. The entire check-in takes under 2 seconds.

4Make it Satisfying

We repeat behaviors that are immediately rewarded. We avoid behaviors that are immediately punished.

The Cardinal Rule of Behavior Change: what is rewarded is repeated, what is punished is avoided. Immediate satisfaction locks in the habit; delayed gratification alone rarely works.

Streak counters

Every check-in increments your streak. The number going up is instant satisfaction — and losing it hurts, which keeps you showing up.

Weekly AI review

Every Sunday, the AI coach reads your week and reflects your identity: 'You showed up 6/7 days — you're becoming someone who never misses.'

“You do not rise to the level of your goals. You fall to the level of your systems.”

— James Clear, Atomic Habits

Everything you need to compound.

The 4 laws handle behavior change. These features handle everything else — tracking, accountability, and the analytics that show 1% adding up.

Year-view calendar heatmap

See every check-in as a colored cell on a GitHub-style grid. The visual of an unbroken streak is motivation that words can't replicate. 1% better shows up as 37% better by year-end.

Weekly AI coach

Every Sunday, the AI reads your check-in patterns and sends a personalized review: what worked, what slipped, and the one habit to focus on next week. Identity reinforcement, automated.

Accountability pacts

Put money on the line. If you miss your habit, your stake goes to a charity you hate. Commitment devices work — research shows a 3x increase in follow-through.

Works everywhere

Web, iPhone, Android, tablet, desktop. Installs as a PWA with offline check-ins and push notifications. Your habits follow you, not the other way around.

Completion analytics

Track your weekly, monthly, and all-time completion rates. See which days you're strongest, which habits slip first, and where your focus should go.

Flexible frequencies

Daily, weekly (3x/week), or specific days (Mon/Wed/Fri). The streak engine respects your cadence — skipping a non-scheduled day doesn't break your streak.

Questions about Atomic Habits

Common questions about implementing James Clear's system with a habit tracker.

1% better starts now.

You've read the book. You know the framework. Now you need the system that runs it for you — every day, automatically, with streaks that hurt to break and an AI that sees your progress.

Free forever. No credit card. 12,000+ people building atomic habits.