Privacy Policy

Constants — last updated 2026-05-03

Constants is a personal habit tracker. We try to collect as little about you as possible.

What we collect

• An anonymous identifier from Sign in with Apple. Apple gives us a stable token; we never see your real name, email, or Apple ID.
• Habits you create — name, color, icon, and schedule.
• The dates and habits you log each day.
• Your reminder time and week-start preference.

What we don't collect

• No name, email, phone, address, or contacts.
• No location data.
• No analytics, advertising, or third-party trackers.
• No photos, microphone, or camera access.

Where your data lives

Your data is stored on a single PostgreSQL database on a Linode virtual machine in Newark, New Jersey, run by the developer. The server takes daily VM snapshots for backup. We never share, sell, or transmit your data to any third party.

Your control

You can sign out at any time from Settings. Selecting Delete Account in Settings permanently removes your habits, log entries, and account from our database. Backups are kept for up to 30 days as part of routine snapshots, after which they are overwritten.

Children

Constants is not directed at children under 13 and we do not knowingly collect data from children.

Contact

Questions or requests: zack@newconsensus.com.