Privacy

Last updated: 23 September 2026.

Local use

StudyDaily can be used without an account. Cards, reviews, statistics, imports, exports and rotating backups are stored on your device. Local study works offline.

Account and sync

If you choose Premium sync, you sign in with an email address and a one-time code. StudyDaily processes your email address, a random app-generated device identifier, and the cards, decks, settings, media and review history needed to keep your signed-in devices aligned. Offline changes are queued until a connection returns.

Purchases

Apple or Google processes mobile payments. For web purchases, RevenueCat Billing provides checkout and subscription management, and Stripe processes payment details. RevenueCat receives purchase identifiers and entitlement status to unlock, restore and manage Premium. StudyDaily does not receive your full payment-card details.

Analytics and crashes

Firebase Analytics and Crashlytics are disabled until the corresponding in-app preference enables telemetry. Events use a closed schema and must not contain card text, deck names, email addresses, search queries or imported documents. StudyDaily removes Android advertising-ID permissions and does not use data for cross-app tracking or behavioural advertising.

Retention and deletion

Synced content is retained while the account is active. You can delete your account from the app; authentication tokens are revoked, the email address is replaced by an irreversible pseudonym, and synced account data is deleted according to the service retention process. Local cards remain on the device until you delete them or the app.

Your choices

You can study locally without signing in, disable telemetry, export your collection, disconnect a device, restore purchases and delete your account from the app. For privacy or support questions, email [email protected].

Categories linked to your account are EmailAddress, OtherUserContent and DeviceID. Categories not linked to your identity are CrashData, ProductInteraction, CoarseLocation, AdvertisingData and PerformanceData. None is used for cross-app tracking.

Advertising in the mobile app

On Android and iOS, free users, including users without an account, may see an App Open ad after a later launch and anchored banners in Today, Library, Progress and Catalogue. The first launch, onboarding, review cards, the editor and the paywall have no ads. Premium has no ads. StudyDaily uses Google AdMob for general-rated, child-directed, non-personalised ads. Before requesting an ad, the app checks consent with the Google User Messaging Platform; where a choice is required, it can be reviewed in Settings. The AdMob SDK may process an IP-derived approximate location, device identifiers, ad interactions, advertising data and diagnostics to serve and measure ads. No card text, searches, documents or account identity are passed in ad requests. StudyDaily removes Android advertising-ID permissions and does not request iOS App Tracking Transparency permission.

Website analytics

This site uses Google Analytics 4 to measure page views and selected link interactions. It is not used for advertising and does not receive card content or account details. This use is described here for transparency; you can object at any time using the button below.

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