HWCalc app for iPhone and iPad

This application is a calculator of a hand-written style. 
Calculator to compute in the order you entered. ex) 1+1x2=4.
The answer is always displayed with the input value.
Can be switched between hexadecimal and decimal display.
[BS] button can delete one character.
In hexadecimal mode, the bit inversion and bit shift is possible.
The answer is recorded as the six most recent history. History can be reused.
Prime numbers less than 100,000 screen if the answer is calculated and displayed "Prime Number!".
Supports up to 32bit arithmetic.
Corresponds to the RetinaDisplay iPhone4.