Addappt Revolutionizes Contact Management with Auto-Updating iPhone Address Book

In an era where staying connected is paramount, Addappt emerges as a game-changing solution for maintaining up-to-date contact information. Founded by Mrinal Desai, co-founder of Crossloop and early LinkedIn employee, this innovative startup officially launches its iPhone app to solve the persistent challenge of outdated address books.

How Addappt Works: Automated Contact Updates

The app, now available on the App Store, seamlessly syncs your mobile, desktop, and iCloud address books. Its standout feature? Automatic updates whenever your contacts’ information changes—no manual edits required.

Key features include:

  • Real-time synchronization across devices
  • Integration with existing address book systems
  • Privacy-focused design

The Network Effect: Privacy as a Priority

For the system to function optimally, both parties must use Addappt and have each other in their address books. While this might seem limiting, Desai frames it as a deliberate privacy measure:

“We’re looking at this like ‘the address book as a platform,’” explains Desai. “When you add a contact, it’s like adding a friend on Facebook.”

Developed in collaboration with former Microsoft engineer Jorge Ferreira, Addappt prioritizes user control over personal data. The service doesn’t store complete address books on its servers and avoids spamming contacts.

Privacy Considerations and User Control

Addappt takes a straightforward approach to data sharing:

  • Contact matching occurs through the first email address in a person’s contact card
  • All matches require mutual approval before sharing
  • No complex privacy settings—simplicity is key

However, users should note that all information in their “Me” card becomes visible to approved contacts. For selective sharing, the only option is to remove sensitive details from your contact card—which simultaneously updates your iPhone’s native contacts.

The Vision Behind Addappt

Desai’s motivation stems from his personal experience:

“I’ve always been a relationship guy, and it’s always been important to me to stay in touch with people…even with the arrival of all these social networks. The address book for me was my primary social network.”

He emphasizes a fundamental principle: “People should own their relationships and their social network. That, to me, is the fundamental thing.”

Competitive Landscape and Availability

While competing with services like Plaxo, Cobook, Brewster, and Xobni’s Smartr, Addappt distinguishes itself by:

  • Focusing solely on contact management
  • Avoiding social network integration
  • Maintaining a clean, privacy-first approach

Currently available as a free download, Addappt may introduce premium features through in-app purchases in the future. The bootstrapped startup represents a fresh take on an age-old problem—keeping your contacts current in our increasingly connected world.


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