This Android app provides non-invasive auricular vagus nerve stimulation (aVNS) using the smartphone's vibration motor.
The app aims to activate the parasympathetic nervous system by stimulating the cymba conchae region of the left ear.
- Choose one of several stimulation modes (Standard, Continuous, Burst, etc.).
- Set the desired duration (0–30 minutes).
- Press the bottom-left edge of your phone gently onto the marked point in your left ear (cymba conchae).
- Optional: to maximize vagus stimulation use breathing technique: 4 seconds inhale, 6 seconds exhale. Instruction audio is available (checkbox)
Use at your own risk!
- Continuous vibration for extended periods may cause device heating or battery drain.
- Use moderate durations (5–10 minutes) to start.
| Symptom | Description | Frequency |
|---|---|---|
| Tingling / Numbness | At stimulation site | Common |
| Skin irritation | From device contact | Occasional |
| Dizziness / Drowsiness | Due to vagus nerve activation | Occasional |
| Headache / Nausea | Due to over-stimulation | Rare |
Download the APK from the Releases section or build it via Android Studio.
New! A new version is available at google playstore:
If vibration effect does not occure, set Settings > Accessibility > Vibration & haptics > Touch feedback "on".
- Kotlin + Jetpack Compose
- Android SDK 26+
- Uses
VibrationEffectandVibratorAPIs
MIT License or Creative Commons.
This app uses AllowedAPKSigningKeys to protect users from unintentional or undetected signing key changes.
These are my confirmed communication channels:
- E-mail: michael.andreas.berger [at] outlook [dot] com
- GitHub: https://github.com/synapp009 (signed commits)