The most beautiful calculator with Nixie tube display.
A retro calculator with a dual line Nixie tube display. It is fairly intuitive to use, but you may need a bit of practice with the dual lines. They make repetitive calculations a breeze. You can do things like "120.45 x 15 %". For use with Mobile 6+ devices with VGA resolutions (480x640). I developed it for a HTC Touch Diamond.