Subprocessors

Last updated: June 21, 2026

This page lists the external providers used for Time & Bill and the landing site in plain language.

Provider Purpose Data category Required or optional Notes
Hetzner Application hosting application data Required for the hosted product Hosting location for the Time & Bill application in Germany
AWS Email delivery and landing-page hosting system email and newsletter delivery processing, landing-site infrastructure Required for the current setup Used for invitations, password resets, newsletter delivery, and the landing page
Sentry Application and mobile app error monitoring on EU-based servers technical error and diagnostic data Required for the current hosted setup Used to detect and resolve application errors

Why these providers are used

  • Hetzner is used to host the core application in Germany.
  • AWS is used for email delivery and the landing page.
  • Sentry is used for technical error monitoring and diagnostics for the application and mobile app, and is configured to use EU-based servers.
  • Newsletter subscriber management is operated by Grobmeier Solutions using self-hosted Listmonk software on the Time & Bill infrastructure; newsletter delivery uses AWS SES.

More detail