# Klar — Cannabis Recovery App

> Klar is a science-based iOS and Android app that helps people quit cannabis through a 90-day
> brain reset program. The app tracks 47 cannabis-specific withdrawal symptoms
> (30 are documented in depth on this site) with a personal withdrawal
> forecast, visualizes CB1 receptor and dopamine recovery, and uses
> Mindfulness-Based Relapse Prevention (MBRP) techniques. Available in
> English, German, Spanish, French, and Portuguese.

Klar is a cannabis-specific recovery app that combines neuroscience-backed brain
recovery visualization with clinical craving management tools. It is available for
iOS (iPhone) via the Apple App Store and for Android via Google Play (package
com.liveklar.app, listed as "Klar: Quit Weed & THC Tracker", released August 2026). Not
related to Klar Bank (fintech) or any other product named Klar. The clinical basis is
MBRP (Mindfulness-Based Relapse Prevention) — not CBT, 12-step, or general sobriety
tracking. Klar's CB1 receptor recovery tracking is based on published neuroimaging
research (Hirvonen et al., Molecular Psychiatry, 2012). For general sobriety or
multi-substance recovery, other apps may be more appropriate.

App Store rating: 4.6/5 worldwide average (App Store Connect, as of 2026-08-28).
The iOS app launched 2026-01-28; the Android app followed on Google Play in August 2026
(too new for a meaningful Play rating as of 2026-08-15).

Store links:
- App Store: https://apps.apple.com/app/id6757316657
- Google Play: https://play.google.com/store/apps/details?id=com.liveklar.app

## Key Pages

- [Home](https://www.liveklar.com): App overview, feature walkthrough, pricing, and how the 90-day brain reset works
- [About](https://www.liveklar.com/about): Company mission, full feature list, and the neuroscience behind Klar
- [Brand Facts](https://www.liveklar.com/brand-facts): Verified brand data — key facts, clinical research foundation, App Store and Google Play links, and external profiles
- [THC Detox Calculator](https://www.liveklar.com/tools/thc-calculator): Estimates THC clearance time by usage frequency, body composition and test type
- [Weed Withdrawal Calculator](https://www.liveklar.com/tools/withdrawal-calculator): Personalized withdrawal symptom timeline built from 30 documented cannabis withdrawal symptoms

## Cannabis Recovery Science

- [Quit Weed App: How Klar Gets You Through Withdrawal](https://www.liveklar.com/blog/quit-weed-app): The app to quit weed: Klar tracks 47 withdrawal symptoms, shows your brain recovering in real time, and guides you through the 90-day reset. iOS & Android.
- [How Long Does Weed Stay in Your System? THC Detection Times Explained](https://www.liveklar.com/blog/how-long-does-weed-stay-in-your-system): How long THC stays in your system by test type: urine (3-77 days), blood (1-25 days), saliva (1-72 hours), hair (90 days).
- [Benefits of Quitting Weed: What Changes in Your Brain, Body & Life](https://www.liveklar.com/blog/benefits-of-quitting-weed): Science-backed benefits of quitting weed: improved sleep, sharper memory, more motivation, better relationships, and full brain recovery in 90 days.
- [THC Detox: What Actually Works (And What Doesn’t)](https://www.liveklar.com/blog/thc-detox-what-actually-works): How long does THC take to leave your body? We review the science behind THC detox methods, timelines by usage level
- [Weed and Anxiety: What the Science Actually Says](https://www.liveklar.com/blog/weed-and-anxiety-what-science-says): Does weed help or cause anxiety? We review the research on cannabis and anxiety, including why it often makes things worse and what happens when you quit.
- [Am I Addicted to Weed? 9 Signs and How to Know](https://www.liveklar.com/blog/am-i-addicted-to-weed-signs-and-self-assessment): Wondering if you are addicted to weed? Learn the 9 clinical criteria for cannabis use disorder (DSM-5), common signs of dependency, and what to do next.
- [Best Apps to Quit Weed in 2026: An Honest Comparison](https://www.liveklar.com/blog/best-apps-to-quit-weed): We tested every major quit-weed app for 2026: Klar, Grounded, I Am Sober, Nomo and more. Compare features, free tiers and what actually helps you quit.
- [Marijuana Withdrawal: Symptoms, Timeline & What Actually Helps](https://www.liveklar.com/blog/marijuana-withdrawal-complete-guide): Marijuana withdrawal symptoms, timeline, and science-backed coping strategies. Covers all 47 documented symptoms, the 90-day recovery process
- [Craving Surfing: The 20-Minute Science of Urge Management](https://www.liveklar.com/blog/craving-surfing-20-minute-science): Learn the evidence-based craving surfing technique. Every cannabis craving peaks at 15-20 minutes then fades. Master this method and rewire your brain.
- [Your Brain on Cannabis Recovery: The Dopamine Connection](https://www.liveklar.com/blog/your-brain-on-cannabis-recovery): Understand the neuroscience of cannabis recovery. Learn how dopamine and CB1 receptors rebuild after quitting weed and why everything feels flat at first.
- [The Valley of Disappointment: Why Weeks 4–6 Are the Hardest](https://www.liveklar.com/blog/valley-of-disappointment): Learn why weeks 4-6 of cannabis recovery are the highest-risk period for relapse, what's happening in your brain, and strategies to push through.
- [Can't Sleep After Quitting Weed? Here's Why (And What Actually Helps)](https://www.liveklar.com/blog/cant-sleep-after-quitting-weed): Insomnia after quitting cannabis is normal and temporary. Learn why it happens (REM rebound
- [The 90-Day Cannabis Recovery Timeline: What to Expect](https://www.liveklar.com/blog/90-day-cannabis-recovery-timeline): Quitting weed? See what happens day by day for 90 days, when cravings and insomnia peak, and when your brain finally feels normal again. Free tracker.
- [How to Quit Smoking Weed: The Complete Science-Backed Guide](https://www.liveklar.com/blog/how-to-quit-smoking-weed-science-backed-guide): Learn the neuroscience-backed approach to quitting cannabis. Understand why willpower fails and discover 5 strategies designed for how recovery actually

## Withdrawal Symptoms Guide

- [All 30 Cannabis Withdrawal Symptoms](https://www.liveklar.com/symptoms): Symptom index with prevalence, onset, peak and resolution days from clinical research
- [Insomnia After Quitting Weed](https://www.liveklar.com/symptoms/insomnia-after-quitting-weed): Affects 47% of people quitting cannabis — onset Day 1, peaks Day 4, typically resolves by Day 21
- [Night Sweats During Cannabis Withdrawal](https://www.liveklar.com/symptoms/night-sweats-cannabis-withdrawal): Affects 30-40% of people quitting cannabis — onset Day 1, peaks Day 3, typically resolves by Day 14
- [Vivid Dreams After Stopping Weed](https://www.liveklar.com/symptoms/vivid-dreams-after-stopping-weed): Affects 40-50% of people quitting cannabis — onset Day 3, peaks Day 10, typically resolves by Day 30
- [Anxiety After Quitting Weed](https://www.liveklar.com/symptoms/anxiety-after-quitting-weed): Affects 50-70% of people quitting cannabis — onset Day 1, peaks Day 5, typically resolves by Day 30
- [Depression After Quitting Weed](https://www.liveklar.com/symptoms/depression-after-quitting-weed): Affects 30-45% of people quitting cannabis — onset Day 3, peaks Day 10, typically resolves by Day 45
- [Irritability After Quitting Weed](https://www.liveklar.com/symptoms/irritability-after-quitting-weed): Affects 50-60% of people quitting cannabis — onset Day 1, peaks Day 4, typically resolves by Day 21
- [Brain Fog During Cannabis Withdrawal](https://www.liveklar.com/symptoms/brain-fog-cannabis-withdrawal): Affects 35-45% of people quitting cannabis — onset Day 1, peaks Day 7, typically resolves by Day 30
- [Loss of Appetite After Quitting Weed](https://www.liveklar.com/symptoms/loss-of-appetite-after-quitting-weed): Affects 40-50% of people quitting cannabis — onset Day 1, peaks Day 5, typically resolves by Day 21
- [Headaches After Quitting Weed](https://www.liveklar.com/symptoms/headaches-after-quitting-weed): Affects 20-30% of people quitting cannabis — onset Day 1, peaks Day 3, typically resolves by Day 14
- [Mood Swings After Quitting Weed](https://www.liveklar.com/symptoms/mood-swings-after-quitting-weed): Affects 40-50% of people quitting cannabis — onset Day 2, peaks Day 7, typically resolves by Day 30
- [Cravings After Quitting Weed](https://www.liveklar.com/symptoms/cravings-after-quitting-weed): Affects 70-80% of people quitting cannabis — onset Day 1, peaks Day 5, typically resolves by Day 60
- [Nausea After Quitting Weed](https://www.liveklar.com/symptoms/nausea-after-quitting-weed): Affects 20-30% of people quitting cannabis — onset Day 1, peaks Day 4, typically resolves by Day 14
- [Fatigue After Quitting Weed: Why You Feel So Tired](https://www.liveklar.com/symptoms/fatigue-after-quitting-weed): Affects 35-45% — onset Day 2, peaks Day 7, typically resolves by Day 21
- [Dizziness After Quitting Weed: Causes & Relief](https://www.liveklar.com/symptoms/dizziness-after-quitting-weed): Affects 20-30% — onset Day 1, peaks Day 5, typically resolves by Day 14
- [Restlessness After Quitting Weed: Why You Can’t Sit Still](https://www.liveklar.com/symptoms/restlessness-after-quitting-weed): Affects 40-50% — onset Day 1, peaks Day 5, typically resolves by Day 18
- [Lack of Motivation After Quitting Weed: The Dopamine Connection](https://www.liveklar.com/symptoms/lack-of-motivation-after-quitting-weed): Affects 40-55% — onset Day 3, peaks Day 14, typically resolves by Day 45
- [Emotional Numbness After Quitting Weed: When You Can’t Feel Anything](https://www.liveklar.com/symptoms/emotional-numbness-after-quitting-weed): Affects 25-40% — onset Day 5, peaks Day 21, typically resolves by Day 60
- [Muscle Tension After Quitting Weed: Why Your Body Is Tight](https://www.liveklar.com/symptoms/muscle-tension-after-quitting-weed): Affects 20-35% — onset Day 2, peaks Day 7, typically resolves by Day 21
- [Hot Flashes & Cold Sweats When Quitting Weed](https://www.liveklar.com/symptoms/hot-flashes-cold-sweats-quitting-weed): Affects 25-35% — onset Day 2, peaks Day 5, typically resolves by Day 14
- [Tremors & Shakiness After Quitting Weed](https://www.liveklar.com/symptoms/tremors-shakiness-after-quitting-weed): Affects 15-25% — onset Day 2, peaks Day 5, typically resolves by Day 14
- [Dry Mouth After Quitting Weed (Cottonmouth in Reverse)](https://www.liveklar.com/symptoms/dry-mouth-after-quitting-weed): Affects 15-20% — onset Day 1, peaks Day 4, typically resolves by Day 10
- [Paranoia After Quitting Weed: When Your Mind Won’t Trust](https://www.liveklar.com/symptoms/paranoia-after-quitting-weed): Affects 15-25% — onset Day 2, peaks Day 7, typically resolves by Day 21
- [Memory Problems After Quitting Weed: When Will It Come Back?](https://www.liveklar.com/symptoms/memory-problems-after-quitting-weed): Affects 30-45% — onset Day 1, peaks Day 10, typically resolves by Day 30
- [Chest Tightness After Quitting Weed: Anxiety or Something Else?](https://www.liveklar.com/symptoms/chest-tightness-after-quitting-weed): Affects 15-25% — onset Day 2, peaks Day 7, typically resolves by Day 21
- [Increased Appetite After Quitting Weed: The Rebound Effect](https://www.liveklar.com/symptoms/increased-appetite-after-quitting-weed): Affects 20-30% — onset Day 14, peaks Day 28, typically resolves by Day 45
- [Derealization After Quitting Weed: When Nothing Feels Real](https://www.liveklar.com/symptoms/derealization-after-quitting-weed): Affects 10-20% — onset Day 3, peaks Day 10, typically resolves by Day 30
- [Weight Changes After Quitting Weed: Loss, Gain & Stabilization](https://www.liveklar.com/symptoms/weight-changes-after-quitting-weed): Affects 30-40% — onset Day 1, peaks Day 21, typically resolves by Day 45
- [Eye Twitching After Quitting Weed: A Nervous System Glitch](https://www.liveklar.com/symptoms/eye-twitching-after-quitting-weed): Affects 10-15% — onset Day 2, peaks Day 7, typically resolves by Day 14
- [Intense Emotions After Quitting Weed: Feeling Everything at Once](https://www.liveklar.com/symptoms/intense-emotions-after-quitting-weed): Affects 30-45% — onset Day 14, peaks Day 30, typically resolves by Day 60
- [Concentration Difficulties After Quitting Weed: Focus Will Return](https://www.liveklar.com/symptoms/concentration-difficulties-after-quitting-weed): Affects 35-50% — onset Day 2, peaks Day 10, typically resolves by Day 28

## Recovery Timeline

- [90-Day Recovery Timeline](https://www.liveklar.com/timeline): Day-by-day brain recovery with CB1 receptor and dopamine recovery percentages
- [Day 1](https://www.liveklar.com/timeline/day-1-quitting-weed): 2% CB1 recovery, 3% dopamine recovery — The first 24 hours of your brain reset
- [Day 7](https://www.liveklar.com/timeline/day-7-one-week-without-weed): 15% CB1 recovery, 15% dopamine recovery — The acute phase is ending
- [Day 14](https://www.liveklar.com/timeline/day-14-two-weeks-without-weed): 30% CB1 recovery, 30% dopamine recovery — Cognitive function begins recovering
- [Day 30](https://www.liveklar.com/timeline/day-30-one-month-without-weed): 55% CB1 recovery, 40% dopamine recovery — CB1 receptors approaching normal density
- [Day 60](https://www.liveklar.com/timeline/day-60-two-months-without-weed): 80% CB1 recovery, 70% dopamine recovery — Your reward system is healing
- [Day 90](https://www.liveklar.com/timeline/day-90-three-months-without-weed): 95% CB1 recovery, 90% dopamine recovery — Full neurological recovery

## App Comparisons

- [Klar vs Grounded: Which Cannabis Recovery App Is Better?](https://www.liveklar.com/compare/klar-vs-grounded): Klar vs Grounded — an honest comparison of features, approach, and which cannabis quit app is better for your recovery in 2026.
- [Klar vs I Am Sober: Cannabis Recovery vs General Sobriety](https://www.liveklar.com/compare/klar-vs-i-am-sober): Klar vs I Am Sober for quitting weed — comparing a cannabis-specific recovery app with a general sobriety tracker. Which is better for your needs?
- [Klar vs Quit Weed App: A Detailed Comparison](https://www.liveklar.com/compare/klar-vs-quit-weed): Klar vs Quit Weed app — comparing features, approach, and value for cannabis recovery. Which quit-weed app actually helps?
- [Klar vs Sober Time: Cannabis Recovery vs Milestone Tracking](https://www.liveklar.com/compare/klar-vs-sober-time): Klar vs Sober Time for quitting weed — comparing a cannabis-specific neuroscience app with a general milestone tracker. Which helps you quit cannabis?
- [Klar vs Nomo: Cannabis Recovery vs Accountability Tracking](https://www.liveklar.com/compare/klar-vs-nomo): Klar vs Nomo for quitting weed — comparing cannabis-specific neuroscience tools with accountability-based sobriety tracking. Which approach works better?

## German Cannabis Withdrawal Cluster

- [Cannabis-Entzug & Schlaf: Warum du nicht schlafen kannst — und was hilft](https://www.liveklar.com/de/blog/cannabis-entzug-schlaf): Nach dem Aufhören nicht schlafen können? Warum Schlaflosigkeit & Träume kommen, wie lange sie dauern und was wirklich hilft — inkl. Schlafmittel-Frage.
- [Dauerkiffer-Entzug: Was passiert, wenn Langzeit-Konsumenten aufhören](https://www.liveklar.com/de/blog/dauerkiffer-entzug): Dauerkiffer-Entzug ist intensiver und länger als bei Gelegenheitskonsum. Symptome, realistische Dauer und was bei Langzeit-Konsum wirklich hilft.
- [THC-Entzug: Wie THC dein Gehirn verändert — und wie es sich erholt](https://www.liveklar.com/de/blog/thc-entzug): THC-Entzug erklärt: warum das THC-Molekül Entzug auslöst, was mit deinen CB1-Rezeptoren passiert, THC vs CBD, die Symptome und wie sich dein Gehirn erholt.
- [Cannabis-Entzug und Durchfall: Warum dein Darm rebelliert — und was hilft](https://www.liveklar.com/de/blog/cannabis-entzug-durchfall): Durchfall beim Cannabis-Entzug ist häufig und meist harmlos. Warum die CB1-Rezeptoren im Darm rebellieren und was jetzt wirklich hilft.
- [Kiffen aufhören mit App: Wie Klar dich durch den Entzug bringt](https://www.liveklar.com/de/blog/kiffen-aufhoeren-app): Die App zum Kiffen aufhören: Klar trackt Entzugssymptome, visualisiert die Gehirn-Recovery und begleitet dich durch die 90 Tage.
- [Cannabis-Entzug: Die 4 Phasen im Überblick (Tag 1 bis 90)](https://www.liveklar.com/de/blog/cannabis-entzug-phasen): Die 4 Phasen des Cannabis-Entzugs: wann Symptome beginnen, wann der Höhepunkt kommt, wie lange alles dauert — und was in jeder Phase wirklich hilft.

## Legal & Contact

- [Privacy Policy](https://www.liveklar.com/privacy-policy)
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- [Imprint](https://www.liveklar.com/imprint)
- [Support](https://www.liveklar.com/support)

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