Last Updated: January 29, 2026
This Privacy Policy explains how Lung ("we", "our", or "us") handles your information when you use our mobile application.
We do not collect, store, share, or sell any of your personal data.
Lung is designed to be completely private. We do not require you to create an account, log in, or provide any personal information to use the app.
Any settings or preferences (such as your chosen breathing pattern or theme) are stored locally on your device using standard Apple storage mechanisms (UserDefaults). This data never leaves your device and is deleted if you uninstall the app.
Lung does not include any third-party analytics, tracking SDKs, or advertising networks.
If you have any questions about this Privacy Policy, please contact us via our GitHub repository.