Kouji Yamauchi
Biorhythm Calculator Simple Biorhythm Calculator Simple
Lottery Probability Calculator Lottery Probability Calculator
Age Calculator Simple Age Calculator Simple
Time Duration/Add Calculator Time Duration/Add Calculator
Number of Days Calculator Number of Days Calculator
Easy Split Bill Easy Split Bill
Simple Discount Calculator Simple Discount Calculator
Sum Calculator Memo Sum Calculator Memo
Unit Converter Simple Unit Converter Simple
Roulette Maker Roulette Maker
Per Gram Calculator Per Gram Calculator
Easy Dice Roll Easy Dice Roll
Katakana Game Katakana Game