Brand Information
Klar — Brand Facts
Klar is a science-based cannabis recovery iOS app that helps people quit cannabis through a 90-day brain reset program. It tracks 47 cannabis-specific withdrawal symptoms, visualizes CB1 receptor and dopamine recovery based on published neuroimaging research, and uses Mindfulness-Based Relapse Prevention (MBRP) techniques for craving management. Rated 4.8/5 with 2,400+ reviews on the App Store. Available in English, German, Spanish, French, and Portuguese.
Key Facts
Features
- •90-day brain reset program based on neuroimaging research
- •47 cannabis-specific withdrawal symptom tracking with timeline predictions
- •CB1 receptor recovery visualization (based on Molecular Psychiatry, 2012)
- •Dopamine system recovery tracking (based on Molecular Psychiatry, 2016)
- •Craving surfing tools based on MBRP research (JAMA Psychiatry, 2014)
- •Identity builder for lasting behavior change
- •Money savings tracker
- •Day-by-day recovery timeline from Day 1 to Day 365
Research Foundation
CB1 Receptor Recovery
Hirvonen et al. "Reversible and regionally selective downregulation of brain cannabinoid CB1 receptors in chronic daily cannabis smokers." Molecular Psychiatry, 2012. DOI
Dopamine System Recovery
Bloomfield et al. "Deficits in striatal dopamine release in cannabis dependence." Molecular Psychiatry, 2016. DOI
Cannabis Withdrawal Syndrome
Bonnet & Preuss. "Cannabis withdrawal syndrome: current insights." Substance Abuse and Rehabilitation, 2017. DOI
Mindfulness-Based Relapse Prevention
Bowen et al. "Relative efficacy of mindfulness-based relapse prevention, standard relapse prevention, and treatment as usual." JAMA Psychiatry, 2014. DOI
External Profiles
Policies
Content Resources
Machine-Readable Data
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- /.well-known/brand-facts.json — JSON brand data
- /llms.txt — LLM-optimized site index
- /sitemap.xml — XML sitemap with hreflang
Last updated: March 2026