Sub-processors
Last updated: 19 June 2026
Our sub-processors
QG Playground engages trusted third-party service providers (“sub-processors”) to process personal data on our behalf under written data processing agreements that impose obligations equivalent to those we accept under applicable law. This page lists the categories of sub-processors we currently rely on, and is updated each time we add or replace a sub-processor.
| Category | Purpose | Data shared | Location |
|---|---|---|---|
| Supabase, Inc. | Database, authentication, and file storage (core infrastructure) | All Platform data at rest — accounts, quiz content, session responses | USA-headquartered; project hosted in the provisioned region |
| Vercel Inc. | Application hosting, serverless compute, edge/CDN, and cookieless site analytics | Request/usage metadata; Platform data in transit. No advertising trackers. | USA / global edge network |
| Ably Ltd. | Realtime messaging for live quiz sessions (question updates, votes, leaderboards in transit) | Live session events only — not stored long-term | UK / EU |
| Razorpay Software Pvt. Ltd. | Payment processing, subscriptions (autopay), and invoicing | Billing data. Full card numbers are held by Razorpay under PCI DSS — never by Quiz Granny. | India |
| Resend, Inc. | Transactional email delivery (invoices, notifications) | Email address, name, message content | USA (SCCs apply) |
| Google LLC | Google Analytics (GA4 — loaded only with your opt-in cookie consent) and Google single sign-on | Consented device/usage data; for SSO: email address, name, profile photo | USA (SCCs apply) |
| PostHog, Inc. | Product analytics (loaded only with your opt-in cookie consent) | Consented device/usage data | USA / EU (SCCs apply) |
| Meta Platforms, Inc. | Facebook single sign-on (only for users who choose Facebook login) | Authentication identifiers (email, name) for those users only | USA |
| AI / LLM gateway (OpenRouter, Inc.; models by OpenAI, Anthropic, Google) | AI quiz question generation | Quiz prompts only — no personal data included in prompts | USA (SCCs apply) |
For full details on how we handle personal data — including international transfers, retention, and your rights — please see our Privacy Policy.
Questions about our sub-processors? Contact us at quizgranny@gmail.com.