iFAX provides unparalleled fax experience powered by an innovative feature set. It is designed for effortless and lightning fax-faxing. It’s simple UI, rich feature set, reliable services and cost –effective rates made it much popular on stores. iFAX is always cheaper than any other Fax app. It enables you to get fax credits by referring friends to use iFAX. You can get unlimited fax number which is free for the first 7 days but it is for USA only.