bit shifty

bit shifty :: the most powerful programmer’s calculator you will ever need
Feature-rich, easy to use, and computationally powerful — with unmatched capabilities for doing calculations with extremely large integers (10k binary digits).
If you need a precise answer without number rounding or floating point calculations, want to work offline, or don’t want to be constrained by numbers that fit in one machine register, this app will surpass your expectations.
Extremely large integers are easily input, viewed, and interacted with via a scrollable keyboard screen.
The following functions are currently included:

Arithmetic:
- Addition
- Subtraction
- Multiplication
- Division
- Modulo
- 2^x
- EE
Bit logic:
- AND
- NAND
- OR
- NOR
- XOR
- XNOR
Bitwise:
- Set bit
- Clear bit
- Toggle bit
- Left shift
- Right shift
Integer calculations can use any combination of the binary, octal, decimal, or hexadecimal number bases, and a base is easily switched to another.
Machine word sizes for input and output integers, and associated calculations, can be set to 8, 16, 32, 64, or 128 bits. Furthermore, inputs and output do not need to be the same machine word size.
Input and output integers can also be either big endian or little endian, or a combination of both.
Additionally, bit shifts are user selectable to either trim the bits beyond the current machine word or extend the number of bits in the integer.
The integer separator is settable to a number of different options, e.g., comma, period, space, etc.
And as an added bonus, the full calculation description (integers, number bases, number representation, endianness, selected calculation and machine word size) can be forwarded to the destination of your choice as a JSON formatted string.
Annual subscription USD 9.99/year. Subscription auto-renews unless cancelled prior to start of new subscription term. Subscription includes access to all 18 current calculator functions and access to all new features introduced during subscription term.
Privacy Policy: https://www.bskul.com/apps/bit-shifty
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/