OK, I'm all for apps. I've bought more than I need, tried just about every new one (that isn't a boob shaker or "pretty girl you play now!") tnat I come a cross.

The other day I ran across this at XDA. Bolt Sizer is am app that will tell you the size of a bolt using your camera and a coin. The developer even set up a spreadsheet so users can add coin dimensions from their country to increase its availability.

I can tell you it works. Its nice to have,at not be an everyday use, bit comes in handy. I commend him for coming up with something new.

Try it out. Never know when it will come in handy.