We have mentioned Mr Number and both of their free crowd sourced Caller ID app and Call Blocker app. They have let us know about a new professional version of their app which combines both of those functions into the same app. The professional version adds one major feature that accounts for its $4.99 price tag. It lets you opt out from having to share your contact data to get access to the Caller ID system.
It looks like they have finally figured out a revenue model at Mr Number. You can find the new Mr Number Professional Caller ID and Call Blocker app in App World for $4.99. If you don’t care about sharing your address book or just want to Call Blocker features you can read more about them in our previous articles: Caller ID app and Call Blocker app.
Let us know if you decide to pick up the professional version. I am always curious to see how free people are with sharing their address book considering how much info users share on Facebook, Twitter, Foursquare, and other sites.