Last updated: March 17, 2026
Solarium does not collect, transmit, or share any personal data. Your books, reading progress, highlights, and settings stay on your device.
None. Solarium has no analytics, no telemetry, no crash reporting, and no advertising. We do not collect any information about you or how you use the app.
Solarium makes network requests only when you explicitly configure an OPDS server (such as a Calibre Content Server, Komga, or Project Gutenberg). These connections are made directly between your device and your server. We never see, proxy, or log this traffic.
If you provide authentication credentials for a server, those credentials are stored locally on your device and sent only to the server you configured.
Solarium stores the following on your device only:
This data is not transmitted anywhere. You can clear all app data at any time through Android Settings.
Solarium does not integrate with any third-party analytics, advertising, or tracking services.
Solarium does not collect data from anyone, including children. The app is not directed at children under 13.
If we ever change how Solarium handles data, we will update this page. Given the app's design philosophy, we do not anticipate collecting data in the future.
Questions about this policy can be directed to /wunsch/log or via wunschwerks.com.