Karv

Every habit costs energy. As you master them, they get easier. The only app built on how your brain actually forms habits.

Start free. No account needed.

iOS link to download the app
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Your Willpower Has Limits. Karv Knows.

Most habit apps let you add 20 habits and pretend that's fine. It's not. Karv gives you 100 energy units per day. Each habit costs some. Add too many, you run out. That forces you to pick what matters. Fewer habits, better results.
creation screen

Habits Get Easier the More You Do Them

Every new habit starts hard. That's real. But repeat it and you unlock milestones based on habit science. At each one, the energy cost drops. Some habits barely cost anything once mastered. Your brain turns effort into autopilot.
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Features

Energy-Based System

100 units. That's your daily budget. Each habit costs energy based on how hard it is. Can't fit everything? Good. That's the point: focus on what matters.

Mastery Milestones

Science-based milestones that reward your consistency. Each one makes the habit easier. Keep building until it barely costs a thought.

Daily Dashboard

Open the app, see today's habits, check them off. Your energy gauge updates in real-time. No journaling, no planning. Just do the work.

Folders & Organization

Group habits by area: fitness, work, morning routine. Keep things clean so you can find what matters when it matters.

Statistics & Insights

Heatmap calendar, streak tracking, completion rates, and recovery metrics. See patterns you'd never notice on your own.

Offline & Private

No accounts. No cloud. No tracking. Your data lives on your device and nowhere else. Export anytime. We don't even have a server.

Frequently Asked Questions

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I am Oussama

I built Karv because every habit tracker I tried had the same problem: adding a new habit felt free. It isn't. Starting a new habit costs willpower, attention, and energy. But no app reflected that. Karv's energy system mirrors how your brain works. New habits are expensive — they require conscious effort. But repeat something enough times and it becomes automatic. The neural pathway is carved. That's the name. Karv. From carving. Every completion is a stroke of the chisel. At 100 repetitions, the habit costs nothing. It's part of who you are.
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