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addapptAddappt, a smart address book created by veterans of LinkedIn and Microsoft, rolled out a new version of its iPhone app today and expanded to Android — the latest steps in its attempt to address the age-old challenge of easily keeping contact information up to date.

The app’s flagship feature is the ability for friends to update their information in your address book. Addappt syncs with the smartphone’s native address book, and allows addappt users to connect with one another — automatically updating contact information when it’s changed by the contact, and replicating that information across cloud services and apps connected to the user’s phone.

Addappt’s updated iOS version adds features including the ability to quickly create groups of contacts based on company name, family name, job title and city. Users can then take advantage of addappt’s existing feature for quickly emailing, texting or sending photos to groups of people.

The new Android version promises make the app more useful by bringing more users into the fold.

Addappt’s development team is in the Seattle region, including the company’s CTO and co-founder, software design engineer Jorge Ferreira, a University of Washington alum and 12-year veteran of Microsoft. Another former Microsoftie, Carlos Brito, is the company’s principal developer. Addappt’s CEO and co-founder is Mrinal Desai, a startup veteran (previously co-founder of CrossLoop) who was LinkedIn’s first business development manager.

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