Tape Measure Metric Calculator app for iPhone and iPad

Recommended for fabricators, engineers, designers, and students who like to try the slick tape measuring feelings. It is fun and easy to use with a short learning curve. You can verify the input data before performing the calculations. It is a good tool, especially good for aluminum framing fabrications.
A video is included to show how the fast actual operation.

Features:
1. continuous calculations method.(full version)
2. visualize your input lengths in proper format.
2. have output formats for imperial and metric units.
3. results can be emailed.
4. 6 levels of accuracy levels.