Snark is a very nice inexpensive tuner. I personally have used them. I own one and have given them for gifts. I highly recommend them. Best tuner for the price the clip on design and ease of use. Beginners to pro’s use snark.
It is very easy to use just clip on tuner head of string instruments turn it on and it is ready to use. Here I clipped it on the tuning head of a ukulele and turned it on.
Just strum the string you are trying to tune. It will show you a graph turn tuning key until the graph shows center green.
As you can see in this photo the graph. It is green the string is in tune for that note.But if it is red before the center you need to tighten until it moves to center green.Where if it was yellow you would loosen the string until the graph is green. It is that easy to use. Truly and all ages tuner. .
As far as accuracy it says it right on the box!
When compared to higher end plug in tuners it was as accurate as them. Dead on accuracy.
So I highly recommend snark for the price ease of use and accuracy you will not be disappointed .