Cookies are small text files that applications save on your device to remember your preferences and session information. In mobile apps, equivalent technologies such as anonymous device identifiers and session tokens are used.
Cookies and similar technologies do not spread viruses and, in most cases, only process partial data that does not allow for the full identification of an individual.
A. Technical — Essential (always active, no consent required)
Necessary for the service to function. They cannot be disabled.
Purpose: login, security, session management, authentication
Duration: session-based or up to 12 months
Data: encrypted authentication tokens
B. Functional — Preferences (no consent required)
These allow the service to remember your choices to provide you with a personalised experience.
Purpose: language, time zone, theme, UI settings
Duration: up to 12 months
C. Statistical — Analytics (may be disabled)
These help us understand how the service is used so that we can continuously improve it. The data is aggregated and anonymous.
Purpose: usage analysis, error detection, performance optimisation
Duration: up to 12 months
D. Push Tokens — Notifications (consent required on first launch)
Required to send push notifications to your device.
Purpose: sending in-app notifications via Expo Push Notifications
Data: anonymous device token, without personally identifiable information
Duration: until revoked
E. Marketing — Google AdMob (explicit consent required)
Used to display relevant advertisements. Activated only after explicit consent on first launch.
Purpose: display of relevant advertisements, anonymous advertising profiling
Duration: up to 12 months — can be revoked at any time
SERWIN uses Google AdMob to display advertisements within the app. AdMob may use anonymous device identifiers to show you relevant adverts based on your general interests.
Consent is requested when you first launch the app via a dedicated banner. You can manage your advertising preferences at any time:
For more information on how Google uses data: policies.google.com/privacy
To send push notifications, SERWIN records an anonymous device token via Expo Push Notifications. This token does not contain any personally identifiable data.
Consent can be withdrawn at any time:
Via the app:
Profile → Notification settings / Profile → Privacy
iOS: Settings → Privacy → Advertising → Limit Ad Tracking / Notifications → SERWIN
Android: Settings → Privacy → Ads → Reset Advertising ID / Notifications → SERWIN
To withdraw AdMob consent: privacy@serwin.net
Google preference management: myaccount.google.com/data-and-privacy
Data is stored on servers in Germany (EU). Google AdMob and the Google/Apple stores may transfer data to the United States in accordance with the European Commission's Standard Contractual Clauses (SCCs) and the EU-US Data Privacy Framework.
To exercise your rights: privacy@serwin.net
The serwin.net website uses technical cookies that are essential for the pages to function properly. In future, subject to explicit consent via a dedicated banner, advertising cookies may be activated via Google AdSense.
The cookie banner on the website is separate from the consent within the app and must be accepted independently.
This Cookie Policy is updated whenever new services that use tracking technologies are activated. Users will be informed via an in-app notification.