Unit Converter for HK people

Play store link

https://play.google.com/store/apps/details?id=com.hkconverter

changelog:

1.4:

• added pressure conversion
• restore configuration of last usage

1.3:

• added currency conversion
• added unit stone(uk) in weight
• added unit K in temperature

1.2:

• added temperature conversion
• added some units in weight

1.1:

• first release version on play store