Hi IngoBN,
Thank you for mentioning this link. Our platform will provide data backup and sync between devices, and in a second milestone, sharing of books and annotations between users. These will be subscription-based services.
Our beta-testers are currently helping us to finalize the data backup+sync feature. We can accept a few more beta-testers. People who are interested in it can apply by filling
this form.
Best regards,
Jean-Marie