Hex,Dec,Oct,Bin(Dev Calc) is a free calculator application for Android users developed by 12KK. This calculator is specifically designed for developers and includes features like binary, octal, decimal, and hexadecimal calculations all in one screen. The calculator has a maximum value of 0x0FFF FFFF FFFF FFFF and a minimum value of 0xF000.

The calculator also has a large 19-digit display of decimal numbers and a conversion reset ON/OFF option. This calculator is perfect for developers who need to perform complex calculations and conversions in different number systems. With its user-friendly interface and comprehensive features, Hex,Dec,Oct,Bin(Dev Calc) is a must-have for developers who need a reliable calculator for their work.