Subprocessors
Last updated: September 13, 2026
Center Desk Drawer uses the service providers below to operate the product. Each is included only because it's necessary to provide the service, with access limited to what its function requires.
| Service Provider | Purpose | Data Involved |
|---|---|---|
| Vercel | Application hosting | All data in transit or processing passes through this infrastructure |
| Supabase | Database, authentication, and file storage | The core data processor, effectively all account and classroom data |
| Stripe | Billing for paid plans | Payment details for teachers who upgrade; we don't see full card numbers |
| Sign-in (if you choose Google) and book search via Google Books | Name, email, and profile photo for sign-in; the search text you type for book lookup | |
| Microsoft | Sign-in (if you choose Microsoft) | Name, email, and profile photo |
We Do Not Sell Data
Center Desk Drawer does not sell personal information to any party, and does not share data with any service provider not listed here.
Keeping This List Current
This page is the single source of truth for Center Desk Drawer's subprocessors. Our Privacy Policy and Security Overview link here rather than maintaining separate copies, so this list stays current without drifting between documents.
Questions
Reach us at hello@modelb.app with any questions about a specific subprocessor or its role.