Multi Measures - The all-in-1 measuring toolkit

I imagine this would be a great app if there were some clear instructions on how it works. The "tools" that are available don't explain much, just how to change some settings which weren't difficult to figure out in the first place. However understanding how to take a measurement with the ruler must cost extra. Some things are self explanatory but if they're not forget it.

Betty handy to have. I even figured it out.

I've used every app in this set at least once, but the decibel meter is by far my favorite. Would not give this one up.

Handier than i anticipated, take the phone out of its case to use levels for accuracy, check vibration in motor with seismometer, and use the surface level to set a table level.

application.