Khema

Quit smoking or vaping.

Khema is an AI-based chat app for people who want to quit smoking or vaping. Through structured conversations, it helps you understand your habits, develop new strategies, and manage relapses. Available anytime, anywhere.

How Khema works

Quitting starts with understanding.

Structured conversations with a clear start and goal. The AI asks you targeted questions and guides you step by step through the cessation process.

Who's behind Khema

Gabriel Zerbe

Chief Technology Officer (CTO)

App & Infrastructure

gabriel@khema.ai

Julian Laue

Chief Executive Officer (CEO)

AI & Concept

julian@khema.ai

Vanessa Kropp

Chief Clinical Officer (CCO)

Therapeutic Concept

vanessa@khema.ai

Who Khema works with

Prof. Dr. Anil Batra

Editor, coordinator, and lead author of the S3 guideline on tobacco cessation

Funded by BMWE

Federal Ministry for Economic Affairs and Energy

Frequently asked questions

No. First, we make the unconscious conscious. Reaching for a cigarette or vape often happens automatically. In the first sessions, we understand triggers, situations, and functions, such as stress, breaks, or rewards. We then build suitable strategies step by step and create a personal plan for difficult moments.

About 20 minutes every three days for a session. In between, you can briefly note your cravings and the situation to develop an even more precise understanding of your habits.

Yes. Khema can support you in quitting smoking or vaping. The support follows the goal you pursue with Khema. Switching from cigarettes to vapes is not a goal.

Nothing. Participation is completely free.

All data stays in Europe, is stored encrypted, and is not used for AI training. For the study, anonymized usage data is shared with Prof. Batra (University Hospital Tübingen). Learn more in our Privacy Policy.

Ready for the first step?

Get started for free

Free for iOS and Android.

EXIST funding logo

Khema is funded by the German Federal Ministry for Economic Affairs and Energy and the European Union (ESF Plus) through the EXIST Business Start-up Grant.