I had installed Mobicip, but my child has uninstalled it. It is possible to recover it?

Should not be a problem. Simply visit the App Store from the iPhone or iPod Touch and try to purchase Mobicip again USING THE SAME iTUNES ACCOUNT used to purchase the app before. Though the price will be listed as $4.99, you will be able to download for no additional charge now since you have purchased it before.