Privacy policy

Updated October 10, 2026. This policy describes Czevito, a Czech learning app published by Watson Studio. Contact: [email protected].

Your account and learning

You can use learning features as a guest. If you create an account, we process your account identifier, email address and information provided by your chosen sign-in service, such as your name and profile image. Firebase Authentication handles sign-in. Learning progress, custom words, word groups and study statistics are stored on your device and can be synchronized through Firebase with your account on other devices.

Purchases

Apple or Google processes store payments. Adapty helps us verify purchases and provide Premium access for the correct account. Its configuration disables collection of IP addresses, IDFA on iOS and the Android advertising ID. Purchase identifiers, subscription status and limited diagnostic events may be processed to restore access and prevent duplicate purchases. We do not receive your store payment-card details. Cancelling an account does not automatically cancel an App Store or Google Play subscription; manage those subscriptions in the store.

Audio and live translation

Microphone audio used for pronunciation practice and live translation is processed on your device with a downloaded speech model. Raw audio is not uploaded to Czevito or DeepSeek.

Live translation is optional. Only after explicit permission in the app, recognised Czech text and recent text context from the same session are sent through the Czevito translation server to DeepSeek, a third-party AI service, for translation into your selected native language. The request also includes a randomly generated session identifier, the selected translation language and segment positions.

Before the first text is sent, the app explains this sharing and asks you to allow it. Your choice is saved on your device for that version of the disclosure. Declining, closing the request or opening the privacy link does not grant permission and sends no text. You can continue using local flashcards and other learning modes without allowing online translation. Retrying saved text online also requires this permission.

Czevito keeps recent text context in server memory to translate subsequent segments of the same session. Translation history also has a local copy in the app, which you can clear there. Words or groups you choose to save from a translation follow the learning-data synchronization rules above.

Provider information is available in the DeepSeek privacy policy. That document distinguishes DeepSeek’s own services from applications built on its platform; Czevito processing and your choices are described here. For questions or deletion requests about information sent through Czevito, contact [email protected].

Advertising, diagnostics and notifications

Free features may display ads from Yandex and Unity Ads through Unity LevelPlay; Premium removes ads. Before initializing the advertising SDKs, Czevito disables consent for personalized advertising and location collection, and opts out of sale or sharing under CCPA. No Czevito account identifier is sent to Unity. The advertising SDKs may process device and installation identifiers, IP-derived approximate location, ad interactions, purchase-related signals and diagnostic information to serve contextual ads, measure performance and prevent fraud. Czevito does not request Apple App Tracking Transparency permission. You can use the privacy choices provided in a Unity ad to request deletion of Unity advertising data. Provider policy: Unity privacy policy .

Firebase processes installation identifiers, product interactions and diagnostics for app analytics and service operation. Firebase Analytics may derive an approximate region from a masked IP address. On iOS, Firebase Analytics is used without Ad ID support. AppMetrica and Meta are not configured or activated. You can manage notification and microphone permissions in your device settings.

Your choices

You can control microphone and notification permissions in your device settings. You can sign out, reset learning progress, or request account deletion in the app’s account settings. You may also contact us to request deletion or ask about your data. Account deletion removes account and synchronized learning data; purchase records may be retained when required for subscription handling, refunds or applicable obligations.

Our service providers may process information in countries outside your country of residence. Their policies explain their respective processing: Google, Adapty, Yandex, and Apple. DeepSeek’s policy is linked in the live translation section above.