Addappt is a new app that wants to help you keep your contacts up to date. It does this by connecting your contact info to anyone you have connected with in the app. So when you update your info, or anyone else does, that contact record gets updated in everyone's contacts list that they have connected to. It's a great plan that requires usage of the app, unfortunately.
Contact updates are something that have always been a problem. Let's hope this will help. Addappt is currently in private beta, but we have invites. Mention 148Apps when you request an invite in app and you'll get moved to the top of the list.