The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
It's like putting your time and effort into the quality concert. Whether you decide to invest or not, it's your choice. Just like this, if a life-long quality app is here, would you just pass it by? I'm assured, this calculator will devote deeply in your phone.advantage) -clear -joyful -convenience -good developerfeature) -support retina -support universal (support iPad) -add export to text file -UI for readability -two type of theme -intuitive animate effectutility) -multinomial arithmetic operation -percentage calculate -'00' button -if app's terminated, calculation results are remained.