Yeah... No

I needed something that could measure the frequency of sound waves for a Physics lab I was doing, and this was seemingly the only app that would give me an exact value, so I paid the $3...

This was a mistake. Despite the reviews that say otherwise, THIS APP IS EXTREMELY INACCURATE! I used a 512 Hz tuning fork to test it, and it told me that the frequency was 745 Hz... I would expect a margin of error from a phone app but this is a little excessive...

I ended up downloading a guitar tuning app that gave me an exact frequency value, and was accurate to within 3-4 Hz.

Whatever you do, DO NOT waste your money.

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