Libby/overdrive, the library app, shares your data with 3rd parties

I'm not sure if others countries use Libby

We may anonymize certain PII and share it in an aggregated form with third parties in order to analyze Service usage, improve the Service, or for other similar purposes. Such information is anonymous and cannot be used to identify you. The use and disclosure of such anonymous information is not subject to any restrictions under this Privacy Policy.

We may also use third parties to process information you willingly submit to OverDrive, such as Alchemer (fka SurveyGizmo, https://www.alchemer.com/) for product and experience surveys, OnceHub (https://www.oncehub.com/) for meeting scheduling, and Salesforce (https://www.salesforce.com/) for customer administration and support.

Third parties may utilize OverDrive’s APIs to integrate their application(s) with OverDrive-hosted digital content collections to promote the discovery and circulation of digital content. OverDrive APIs may use Google Analytics (https://analytics.google.com) to track anonymous usage data for research and analytics purposes