MERSUS
Privacy Policy
Last updated 28 August 2026.
Mersus is a macOS focus app. We collect the minimum needed to run your account, subscription, and calendar sync.
What we store
- Account identifiers from Sign in with Apple, Google, or your email.
- Focus sessions you create (times, app lists, blocked domains), synced to your account.
- Devices that have signed in, so you can see which Macs sync.
- Whether Google Calendar is connected. Event titles and times stay on your Mac unless you create a tied block.
- Subscription status from Stripe. We do not store full card numbers.
What we do not do
- We do not sell personal data.
- We do not read the contents of blocked pages.
- App blocking happens on your Mac. Session rules leave the device only when you are signed in for sync.
Retention and deletion
You can delete your account from trymersus.com/account, from Mersus → Account, or by emailing hello@trymersus.com. We delete profile, sessions, and device records. Stripe retains billing records as required by law.