Questions, bugs, feedback, or data requests: support@douhouse.com
We usually reply within 2 business days.
Frequently asked
Where is my data stored? Entirely on your device. Waterline has no account, no server and no analytics. See the Privacy Policy.
How do I back up or move my data? Profile → Export my data. It writes a JSON file you can save or send anywhere.
Why didn't my score change after checking in? Check-ins build potential (⚡). Spend enough potential to lever a whole layer up one step — that is when the score moves.
How do I delete everything? Profile → Reset. It clears all local data immediately and irreversibly. Deleting the app also removes everything.
Which languages are supported? The app is available in 9 languages and follows your system language by default; you can override it in Profile → Language.