Seismometer 4+

Wow, I like this. I tried that on my speaker and on the floor beside to see if there was a lot of vibration transfered from the speakers and the floor. I was impressed with the results.
There is only few things I will like to see, if you plan to improve it, it's a pause and/or stop button, and also the possibility to take few snap shut that can be review after with if possible some kind of scale number and volume.
Continue the great job.
Frenchy

Very good app. To comment to the ones thatvthink the line should be zero once it's on a table is wrong. A car passing on the street is enough to shake an iPhone on a table. A dog barking or your breathing on the table while watching the app is enough to move the needle to not equal zero.

Very nice tool to show students how environmental vibrations effect items.
Try it go to another room and shout if you're loud enough you can move the needle.

I find myself opening this app up whenever I'm bored.. I just place it on the floor and start jumping to whatch the needle go crazy. I think it's quite amusing.. For people easily amused, this app will take up lots of your time. I love it!