Sub-processors
Last updated June 2026
To run day3 we rely on a small number of trusted infrastructure providers that may process personal data on our behalf. Every one operates in the European Union. We keep this list current and complete.
Current sub-processors
| Provider | Purpose | Location |
|---|---|---|
| Vercel | Application hosting, edge network and content delivery | European Union |
| Supabase | Database, authentication and file storage | European Union |
| Amazon SES | Outbound email delivery | European Union (Stockholm) |
Changes to this list
When we add or replace a sub-processor that handles personal data, we update this page before the change takes effect. Customers with a signed Data Processing Agreement can request advance notice so they have the opportunity to object.
Questions
Email hello@day3.app with any question about a sub-processor or to request notification of future changes.