Note)This App include iAd, then use only on OS4.
Roll Paper Calculator Lite is the limited function version for every one for free.
Roll Paper Calculator Lite is limited, roll paper row is limited , and no paper memory input. but the functionality is almost same at Ver1.1, first version of Roll Paper Calculator. AND it has iAD.
Roll Paper Calculator Ver2.5 has functions of input from the paper, warp movement of the paper, persistence of the paper data. and next version of Roll Paper Calculator (the PRO version) change itself to THE E-MAIL CALCULATOR.
if you would like Lite version, please try the paid version too.