Privacy Policy
At Daychain, we care about your privacy. This policy explains how we collect, use, and protect your personal data when you use the Daychain mobile app.
Data We Collect
We collect the following data to provide our services:
- Email address (for account creation and communication)
- Username and name (optional, for profile)
- Password (securely hashed)
- Habit data (habits you create and completion records)
- Device and preference data (timezone, language, notification preferences)
How We Use Your Data
We use the data we collect for the following purposes:
- To create and manage your account
- To provide the habit tracking service
- To send push and email reminders (when you opt in)
- To improve our services
Data Sharing
We do not sell your data to third parties. Your friends can only see your total chain length and activity chart; habit names are private.
Cookies
The mobile app uses no advertising or analytics cookies. Our marketing website sets analytics cookies (Google Analytics) only if you accept them in the cookie banner — decline and the site sticks to essential cookies only.
Data Storage
Your data is securely stored on servers located in Europe (Germany).
Data Retention
We retain your data as long as your account is active. When you delete your account, all your data is permanently deleted.
Your Rights
You have the following rights regarding your data:
- Right to access your data
- Right to request correction of your data
- Right to request deletion of your data
- Right to object to data processing