No. Although you must give us access to your address book in order to use Scedule, we do not need or store any personal data from your address book on our servers.
First, it allows you to easily select those contacts that should participate in your meeting. Scedule therefore lists all contacts from your address book for which there is an e-mail address.
From this e-mail address, the app generates an encrypted hash value that is transmitted to our server. This hash value can not be converted back into an e-mail address by the server. This way we identify which of your contacts also has your e-mail address (same hash value) in his address books. Because in the context of a 1:1 appointment the availability of organizer and participants are only compared if both know each other. This ensures that unknown contacts do not receive any information about your basic availability.
As part of the Smart Invitation, the app also transfers the e-mail addresses of the selected participants to our server in Germany in order to manage responses. After completion of the poll, these data will be deleted from our server.