Click sound!

This app is true to the original EXCEPT for the key click sound! Its loud, slightly delayed from the actual button press, and basically a highly annoying sound. If I silence the phone, there is no feedback to let me know whether it registered a button press, and Im likely to forget to turn the ringer back on when Im done. Update this to a simple, unobtrusive click and Ill give it five stars. I still carry my real 12c everywhere.

Edit: Just discovered you can turn off the clicks, but that doesnt solve the problem of no feedback, and the key vibrate is too long to be functional.

dtemple11 about HP 12C Financial Calculator