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Trusted by 150,000+ users

Your Path to a Clearer Relationship with Cannabis.

The #1 app for cannabis users ready to quit, cut back, or take a break - backed by proven behavior change methods.

Download on the App Store Get it on Google Play
Clear30 app on iPhone

Trusted by leading institutions

Cannabis today is not what it used to be

3% THC 1970's Cannabis

Natural, mild potency

1970's Cannabis

30% THC Today's Cannabis

10x more potent

Today's Cannabis

19M+ Americans meet criteria for Cannabis Use Disorder

Source
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2-3x Higher Risk of Suicidal Thoughts

Daily cannabis users face 2-3x greater risk of suicidal ideation - even without a depression diagnosis.

Volkow et al. (2021), JAMA Network Open

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Increased Anxiety & Depression

Cannabis use in adolescence is linked to significantly higher rates of anxiety and depression in young adulthood.

Gobbi et al. (2019), JAMA Psychiatry

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Impaired Attention, Memory & Decision-Making

Heavy use disrupts the cognitive functions people rely on every day — focus, recall, and clear thinking.

Solowij et al. (2002), Neuropsychopharmacology

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Increased Risk of Psychosis

Daily use of high-potency cannabis is significantly associated with first-episode psychotic disorders.

Di Forti et al. (2019), The Lancet Psychiatry

Real Results in Just 30 Days.

90%
Average decrease in cannabis use
Among users who select they're committed to taking a break
89%
Report improved mental health
After their first 30 days

How Clear30 resets your relationship with cannabis

Why Users and Institutions Trust Clear30

Dr. Fred Muench A. Thomas McLellan, PhD

Built by World-Leading Experts

Founded by Dr. Fred Muench, who led the world's largest mobile addiction study, and advised by A. Thomas McLellan, PhD, former Deputy Director of National Drug Control Policy under President Obama.

Between the founding team and advisory board, hundreds of peer-reviewed publications with tens of thousands of citations across addiction science, digital behavior change, and cannabis research.

University of Michigan Harvard University

Ongoing Research Collaborations

Partnered with the University of Michigan's Dynamic Intervention Decision Making Center on randomized controlled trials to build and refine Clear30's intervention model.

Collaborating with The Recovery Research Institute at Harvard to study user demographics and validate the program's efficacy.

National Institutes of Health

Research-Backed by the NIH

Clear30's development is funded through the National Institutes of Health and the National Institute on Drug Abuse - the gold standard in federal research funding.

Clear30

Proven at Scale

150,000+ downloads. 4.8 stars. The #1 cannabis support app worldwide.

What are our users saying?

★★★★★

4.8 stars * 2,400+ reviews

Great app if you want to stop smoking weed

★★★★★

It helped me a lot. I hit 30 days after like 5 years of daily use - nonstop. Very proud of myself 🌿

Dan5033

Finally something personal!

★★★★★

I didn't want to fully quit - I just wanted to monitor my use and cut it down. Nobody tried to force me, and peer support helped a lot when cravings hit.

Lori S.

It really helps.

★★★★★

I needed something like this to quit. I didn't have many people to hold me accountable, but the community here helped a ton. Worth trying if youve been struggling.

Farf33

Incredible guided meditations!

★★★★★

The meditations really get me through cravings, and the insight on getting your power back (and how cravings work) is genuinely useful.

Marissa U.

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Choose Your Own Path to Get Clear

📊

Track Use

Mental Clarity

⏸️

Take a Break

Reduce Dependency

⚖️

Moderate

Reduce Anxiety

🎯

Quit Forever

Increase Energy

Frequently Asked Questions

What is Clear30?
Clear30 is a mobile app that helps people take a 30-day break from cannabis — and beyond. Whether you want to take a break, cut back, or quit for good, Clear30 provides a personalized, science-backed program with daily content, guided meditations, AI-powered support, community, and access to a real human peer support coach. Clear30 is the #1 cannabis support app worldwide with over 140,000 downloads and a 4.8-star rating.
Is Clear30 only for people who want to quit weed?
No. Clear30 is called Clear30 because the core program is a 30-day break from cannabis. But after your break, you can choose the path that's right for you — whether that's a moderation program, mindful use, or quitting for good. You can also simply track your use to stay intentional. Clear30 meets you where you are.
Is Clear30 available on Android?
Yes. Clear30 is available on both iOS and Android.
What kind of support does Clear30 offer?
Clear30 offers multiple layers of support. There's an in-app AI that understands your personal journey and provides conversational guidance. There's also a real human peer support coach who is trained and will text with you directly. And there's a full in-app community where you can post, respond to others, and create or join groups for accountability.
Is Clear30 evidence-based?
Yes. Clear30's development is funded by the National Institutes of Health (NIH) and the National Institute on Drug Abuse (NIDA). The app was founded by Dr. Fred Muench, who led the world's largest mobile addiction study, and is advised by A. Thomas McLellan, PhD, former Deputy Director of National Drug Control Policy under President Obama. Clear30 has active research partnerships with Harvard University and the University of Michigan, and peer-reviewed research has been published in leading journals including Psychology of Addictive Behaviors.
Who is Clear30 designed for?
Clear30 is designed for everyone. Our users range from 18 years old to 88 years old. While the app is built to be engaging enough for younger users who are accustomed to modern, interactive apps, people of all ages benefit from the program.
Can universities or organizations partner with Clear30?
Yes. Universities and organizations can partner with Clear30 to make the app available to their students or members through our voucher program. We work with institutions including the University of Michigan, Dartmouth, Northwestern, and the City of Detroit. To learn more or book a demo, book a demo here.
Is user data private?
Yes. All user data is anonymized. Institutional partners do not see individual user information — they receive aggregate, anonymized reporting only.
How does Clear30 work?
When you sign up, you'll go through a personalized onboarding that asks about your cannabis use, your goals, and your relationship with weed. Based on your answers, Clear30 builds a tailored experience — daily videos, meditations, journal prompts, and AI-driven conversations that adapt to you. You'll also receive dynamic text messages and notifications based on how you're progressing. It's not a one-size-fits-all program — everything is shaped by what you share during onboarding.
How much does Clear30 cost?
Clear30 is a subscription-based app. An annual subscription is $39.99/year, and lifetime access is available for $119.99.
How long is the Clear30 program?
The original Clear30 program is 30 days long, and you can repeat it as many times as you'd like. After your initial break, longer-term programs — including mindful use, moderation, and long-term quitting pathways — can last up to a year, with new content continually being added.
What results do Clear30 users see?
Users who select that they're committed to taking a break see a 90% average decrease in cannabis use. Across all users and all goals — whether cutting back, moderating, or quitting — the average decrease in use is 71%. And 89% of users report improved mental health after their first 30 days.
Is Clear30 a medical or therapeutic service?
No. Clear30 is not a medical or therapeutic service. It is a digital wellness and behavior change program designed to support people in making intentional decisions about their cannabis use.
Can parents sign their kids up for Clear30?
Not yet, but we're working on it. If you're interested in signing up someone under 18, email support@clear30.org to join our waitlist.
Can Clear30 be customized for my institution?
Yes. Multiple partners already have customized versions of Clear30 that highlight their institution's specific support pathways and resources. Customizations can include integrating your campus or organizational wellness resources directly into the app experience.