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Third-Party Services

Zero uses a small number of trusted third-party services to operate the platform. Below is a summary of each service, its purpose, and the data shared with it.

ServicePurposeData Shared
SupabaseDatabase & AuthAll platform data (encrypted at rest)
StripePaymentsEmail, payment method
GoCardlessDirect DebitBank details (for clubs)
SentryError MonitoringCrash reports (sensitive data redacted)
RevenueCatiOS SubscriptionsApple ID, subscription status
postcodes.ioGeocodingPostcode only

Supabase provides Zero’s database, authentication, and storage infrastructure. All platform data is stored in Supabase and encrypted at rest. Row-level security policies ensure that users can only access their own data.

Stripe handles payment processing for individual subscriptions. When you subscribe to Zero, your email address and payment method are shared with Stripe. Zero does not store your card details — they are held securely by Stripe.

GoCardless is used for Direct Debit payments, primarily for club subscriptions and membership fees. Bank details are shared directly with GoCardless and are not stored by Zero.

Sentry is used for error monitoring and crash reporting. When an error occurs, a report is sent to Sentry to help us identify and fix issues. Sensitive data (such as personal information, firearms data, and certificate details) is automatically redacted before any report leaves your device.

RevenueCat manages in-app subscriptions for the Zero iOS app. It receives your Apple ID and subscription status to manage your access. No firearms or personal shooting data is shared with RevenueCat.

postcodes.io is a free, open-source UK postcode geocoding service. Zero sends only a postcode to look up geographic coordinates for features like the club finder. No other personal data is shared.


If you have questions about how your data is handled by any of these services, contact support@zeroshooting.com.