Vallkey uses these companies to run its service. None of them can read your vault: they handle only encrypted data, or none of it.
| Provider | What for | What it handles |
|---|---|---|
| Railway | Hosting the service and this website | Encrypted vaults and account records |
| Amazon Web Services | Encrypted off-site backups | Backup copies it can’t read |
| Resend | Sending email | Your email address and the message |
| Stripe | Payments and sales tax | Your card and billing details, which never reach us |
| Apple and Google | Push notifications | Notifications, which carry no vault data. Plans are bought on the web, not through their stores |
We tell business customers 30 days before adding a subprocessor that handles their data.
Last updated October 4, 2026