Subprocessors

Last updated: May 26, 2026

This page lists the main service providers and provider categories PropoKit uses to operate the Service. These providers may process data as needed for their role in providing infrastructure, authentication, billing, connected services, support, or optional AI-assisted features.

Current Providers and Categories

• Google Firebase / Google Cloud: hosting, authentication, database, file storage, cloud functions, application infrastructure, and related platform services.
• Stripe: checkout, subscriptions, billing portal access, invoices, and payment-related records.
• Intuit QuickBooks Online: optional connected-service workflow for customer matching and invoice handoff when a user connects QuickBooks Online.
• Email service providers: account, support, billing, team, and workflow email delivery.
• AI service providers: optional AI-assisted scope, copy, image, or product-related generation when a user chooses to use those features.
• Google and Microsoft sign-in providers: authentication flows when a user chooses those sign-in methods.

Optional Features

Some providers are used only when you choose a related feature. For example, QuickBooks data is involved only when a workspace connects QuickBooks Online, and AI service providers are involved only when AI-assisted features are used.

Updates

We may update this page as providers change. Material provider changes that affect how personal data is handled may also be reflected in the Privacy Policy.