This is an app you want to carry around when you buy toilet paper.

Enter the length, number of turns in one set, and price,

Displays the value per day.

- One roll length

- Quantity of rolls per set

- Amount of money

By typing

Amount of money per day

It is displayed.

With a brand of toilet paper

Enter the store and touch the [Save] button

By saving the history,

At the next purchase, you can check at a glance if it was higher than before.

Paper towel mode has been added.

Detailed operation method

http://r2o.in.coocan.jp/rollingpapers.html

(Japanese) Please refer to it.