---
title: "Quit Smoking & Vaping App with AI Coach | Khema"
description: "A free app with an AI coach for quitting smoking or vaping: conversations about your triggers, an SOS mode for moments of craving, and progress tracking."
url: "https://www.khema.ai/en"
language: "en"
---

# 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 deal with relapses. On your phone whenever you need it.

## How Khema works

### Sessions: Quitting starts with understanding.

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

### SOS Mode: Right there when a craving hits.

A craving usually lasts only a few minutes. In SOS mode, you can start an exercise or distract yourself right away, even offline. Or talk it through with the AI coach.

### Tracking: Your progress, always visible.

Days without smoking or vaping, money saved, and milestones reached. Your dashboard shows you what you have already changed.

## 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), Psychology & Content, vanessa@khema.ai

### Research and funding

- Prof. Dr. Anil Batra: Scientific lead of the German S3 guideline on smoking and tobacco dependence (2021)
- Funded by BMWE: Federal Ministry for Economic Affairs and Energy

## Frequently asked questions

### Do I have to quit right away?

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.

### How much time do I need to plan?

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.

### Can I also use Khema to quit vaping?

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.

### What does the beta cost?

Nothing. Participation is completely free.

### What happens with my data?

Your conversations and voice recordings do not leave the EU, are stored encrypted, and are not used for AI training. Some service providers, for example for push notifications, SMS codes and internal quality notes, may also process data in the US. For the study, anonymized usage data is shared with Prof. Batra (University Hospital Tübingen). Learn more in our [Privacy Policy](https://www.khema.ai/en/privacy-policy).

### Is Khema accessible?

Yes. Khema is made for everyone and follows the current accessibility standard, WCAG 2.2 AA. The app works with screen readers and adapts to your settings, from text size to contrast.

## Ready for the first step?

Free for iOS and Android.

- [Download on the App Store](https://apps.apple.com/de/app/id6754001101)
- [Get it on Google Play](https://play.google.com/store/apps/details?id=com.khema.smokefree)

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.
