Quit Weed App: Klar

Klar is the app to quit weed for iOS and Android. It takes you through cannabis withdrawal with a science-based 90-day program: sobriety tracker, daily check-ins, withdrawal monitor, THC detox calculator and adaptive lessons.

The assessment at the start is free; full access runs on a subscription. Klar is available in English, German, Spanish, French and Portuguese, and works for quitting for good as well as for a tolerance break.

Download on the App StoreGet it on Google Play
47
withdrawal symptoms tracked
76
adaptive lessons
90
day program
5
languages

What the Klar app does

  • Sobriety Tracker: Track your weed-free days with a beautiful, motivating counter
  • Collectible Milestone Cards: Earn holographic cards for streaks, savings, and wins — collect all 64 and share them
  • Daily Check-ins: Quick daily reflections to build awareness and accountability
  • Withdrawal Monitor: Track clarity, sleep, and cravings against the typical recovery curve
  • THC Detox Calculator: Earlier and cautious estimates for urine, saliva, blood and hair, counted from your last logged use, with every source one tap away
  • Health Milestones: See real improvements in sleep, memory, motivation, and lung health
  • Money Saved: Watch your savings grow — in your own currency
  • Adaptive Lessons: The right science-based lesson for a heavy day, a slip, or a rough symptom
  • Identity Ritual: One line a night to reinforce who you're becoming
  • Your Why: Pin a photo or a note and keep your reason one tap away
  • Craving Tools: Breathing exercises and Dawnrunner, a calming mini-game to ride out urges
  • Home Screen Widgets: Your streak, savings, and recovery at a glance

How the 90-day program works

Phase 1: Detox (Days 1-14)

Navigate the first two weeks with withdrawal symptom tracking, craving management tools, and daily encouragement designed for the hardest part of quitting.

Phase 2: Rebuild (Days 15-45)

Develop new habits, understand your triggers, and learn coping strategies that stick. Watch your brain chemistry rebalance.

Phase 3: Thrive (Days 46-90)

Solidify your new lifestyle, celebrate major milestones, and build the foundation for long-term cannabis freedom.

Klar vs. a plain day counter

FeatureKlarPlain day counter
Count clean daysYesYes
Track withdrawal symptoms47 symptoms, against the recovery curveNo
THC detox calculatorUrine, saliva, blood, hairNo
Lessons and program76 adaptive lessons, 90 daysNo
Craving toolsBreathing exercises and DawnrunnerRarely
Delete your dataAnytime in SettingsVaries

As of October 2026. For head-to-head comparisons with individual apps, see the comparison pages.

Common questions

Is the Klar app free?+
The download and the personal assessment at the start are free. Full access to every feature and lesson runs on a subscription; the price is shown in the App Store and on Google Play in your currency. You can cancel anytime in your account settings.
Is Klar available for Android?+
Yes. Klar is on the App Store for iPhone and on Google Play for Android.
Does the app work for a tolerance break?+
Yes. Whether you quit for good or take a tolerance break, the counter, the check-ins and the lessons work the same way.
What makes Klar different from a plain day counter?+
A day counter shows how long you have been clean. Klar also shows what is happening in your body: the withdrawal monitor compares clarity, sleep and cravings with the typical recovery curve, the THC detox calculator estimates your detection windows, and the lessons give you the right strategy for a rough day.
Is Klar science-based?+
The recovery curves and lessons are built on published research on cannabis withdrawal, including the recovery of CB1 receptors and the dopamine system. Klar is a self-help tool, not a medical device; see a doctor if your withdrawal symptoms are severe.
What happens to my data?+
Your data is never sold. You can delete your account and all of your data anytime in Settings.

Track your progress

See your brain healing in real time

Klar tracks 47 withdrawal symptoms and visualizes your dopamine and CB1 receptor recovery day by day.

Try Klar Now

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Medical Disclaimer: This content is for informational purposes only and does not constitute medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider for medical guidance. If you are in crisis, call 988 (Suicide & Crisis Lifeline) or text HOME to 741741.