Bill Optimizer is the best way to keep track of your monthly phone usage. Make sure your bill never takes you by surprise again! This app offers a few handy tools to help you control your phone bill more efficiently. Roaming guard â€“ avoid through-the-roof roaming data fees. Disable any data traffic while you are abroad to escape the high charges that come with surfing the Internet while in roaming. This useful feature also blocks background data traffic from applications.
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