Brand Information
Klar — Brand Facts
Klar is a science-based cannabis recovery app for iOS that helps people quit cannabis through a 90-day brain reset program. It tracks 47 cannabis-specific withdrawal symptoms and fits a personal withdrawal forecast to your own logs, visualizes CB1 receptor and dopamine recovery based on published neuroimaging research, uses Mindfulness-Based Relapse Prevention (MBRP) techniques for craving management, and adapts 73 lessons to your journey. 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 and a personal withdrawal forecast
- •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), with one-tap craving logging
- •Nightly identity ritual for lasting behavior change
- •Money savings tracker in your own currency
- •Day-by-day recovery timeline from Day 1 to Day 365
- •73 adaptive lessons across 7 recovery tracks, personalized to your usage pattern
- •Holographic collectible milestone cards in five rarity tiers
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
van de Giessen 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
Structured brand data is available for AI systems and automated tools:
- /.well-known/brand-facts.json — JSON brand data
- /llms.txt — LLM-optimized site index
- /sitemap.xml — XML sitemap with hreflang
Last updated: July 2026