Privacy Policy

This privacy policy applies to the app titled “Contacts Sync, Transfer & Move” developed by the DERUSS APP.

How we protect your information.

*) As a client-side only app, this app syncs your contacts directly from your Android, rather than in the cloud on a 3rd party server, which gives you superior privacy. Your contacts are not stored on any servers other than CardDAV server and the ones you specify in your Android Settings > Users & accounts.

*) All traffic between this app and CardDAV server runs over SSL/HTTPS (secured communication). This app uses OAuth2, latest security standard for authentication.

*) When you login to any CardDAV server, this app requests a “token” from CardDAV server and stores this token along with your username on your device.

*) Your password is never visible to this app and is never stored on your device.

*) This app stores your contact data in one of two places only: either your CardDAV account or one of your Android local accounts.

Changes to this privacy policy

DERUSS APP has the discretion to update this privacy policy at any time. When we do, we will post a notification on the main page of our App. We encourage Users to frequently check this page for any changes to stay informed about how we are helping to protect the personal information we collect. You acknowledge and agree that it is your responsibility to review this privacy policy periodically and become aware of modifications.

Your acceptance of these terms

By using this App, you signify your acceptance of this policy and terms of service. If you do not agree to this policy, please do not use our App. Your continued use of the App following the posting of changes to this policy will be deemed your acceptance of those changes.

Contacting us

If you have any questions about this Privacy Policy, the practices of this app, or your dealings with this app, please contact us at:

This document was last updated on July 14, 2019

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