iPhone Screenshots


New personalized business cards

Easy-to-use contacts manager built for the twenty-first century.

Gatekeeper is a directory service designed to help you focus on your relationships. It keeps your contacts relevant and up-to-date. Share your contact information on your terms. Send personalized business cards.

No one knows your information better than you, and the same goes for everyone else. We leverage this fact, keeping it up to date.

Get notified when data changes. Contacts share relevant information with you. Never guess again.

Set the information you share and with whom. Giving some access to all your data and others to only parts of it.

Gatekeeper only facilitates the exchange of information. We do not sell or rent your data and never will.

What’s New

Version 3.40.0 (36)

Now with personalized business cards and a much smoother experience

App Privacy

The developer, Catenum Pty Ltd, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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