Every time when you are trying to recharge your mobile, you need to know the plans of your operator, cost and its validity. These plans are changing every month. So, you need to know the plans by going to the retailer or from internet. When you are searching in the internet, it is a little bit complex to find what are the offers of that month. Because every website doesn't holds full information of plans. So, for all these problems here is a solution with one app called 'iReff'. This app show all plans and offers of a particular operator. But, it shows only for the prepaid users of any operator. You no need to ask the customer care for offers or plans. iReff app is available to Android, Windows, BlackBerry and iPhones users.