It automatically categorizes your transactions, alerts you when youre about to go over your budget, and lets you opt-in to push notifications about bills. Android, iphone ipad, windows 8, windows phone, web. Free billguard helps you go over your credit card statements with a fine-tooth comb and reported any questionable or visit web page unwanted charges immediately. It flags merchants who frequently charge consumers for products or services theyve either forgotten about or they didnt know they were requesting. This clever app also provides a quick and easy solution to one clearly-defined problem: gray charges.