Policy
Third-Party Services
Services Cardary uses for sign-in, purchases, analytics, ads, AI, OCR, and infrastructure.Overview
Cardary uses third-party services to operate authentication, purchases, analytics, crash reporting, advertising, AI, OCR, storage, sync, and infrastructure. These providers may process information according to their own terms, policies, and platform rules.
Service matrix
| Provider or service | Purpose | Data that may be processed |
|---|---|---|
| Apple App Store / StoreKit | iOS distribution, in-app purchases, subscription management, refunds | app account linkage, product id, transaction id, receipt, purchase status |
| Google Play / Play Billing | Android distribution, in-app purchases, subscription management, refunds | product id, purchase token, order metadata, entitlement status |
| Sign in with Apple | account sign-in | Apple user identifier, email if shared, authentication tokens |
| Google Sign-In | account sign-in | Google account identifier, email, profile fields permitted by Google and user choices |
| Firebase Core | Firebase app initialization | app instance and platform configuration |
| Firebase Analytics | usage analytics and product measurement | app events, screen names, device/app metadata, non-content parameters |
| Firebase Crashlytics | crash and reliability diagnostics | stack traces, crash data, app state, device/app metadata |
| Firebase AI / Google Gemini | AI explanation and AI card creation | prompts, card text, deck context, generated responses |
| Google Mobile Ads / AdMob | app-open, banner, and interstitial ads | ad requests, ad identifiers where permitted, impressions, placement metadata |
| Aliyun OSS | resource and media storage | avatars, images, audio, files, deck resources, published packages |
| Aliyun OCR | text, question, and card recognition | uploaded OCR images and recognized text |
| Xfyun / iFlytek OCR | formula recognition | uploaded formula images and recognized formula output |
| Cardary API, sync, and WebSocket infrastructure | account, cloud decks, sync, resources, support | account data, decks, cards, logs, resources, sync metadata |
Third-party terms
Third-party services are not controlled by Cardary. Their availability, billing behavior, privacy practices, model behavior, OCR accuracy, ad content, and retention practices may differ from Cardary’s own practices.
User choices
You can manage app-store subscriptions through Apple or Google, manage sign-in providers through Apple or Google account settings, manage tracking and ad personalization through device and platform settings, and manage app permissions through device settings.
Related pages
See Privacy Policy, Subscriptions, and AI and OCR.