Base Conversion Notes is a radix(base) converter supporting DEC/BIN/OCT/HEX number systems. This convertor app includes the following features: 'Base Conversion Notes' is a free app. Supports Number Bases: 2, 8, 10, 16 (Binary/Octal/Decimal/Hexadecimal). Calculator for addition / subtraction / division / multiplication / AND, OR, XOR logical operations.