Thread: Tuner

In order to tune my VCO I want to invest in a decent tuner.

After some research I narrowed down to 2 options. The First one is one
mentioned a lot in various forums: the turbo tuner from Sonic Research.

https://www.turbo-tuner.com/

The second one is the Boss pedal chromatic tuner.

https://www.boss.info/us/products/tu-3/

I choose for this one because I already own a lot of Boss pedals and this would be a nice addition to my pedal
collection. But this one is stated as "chromatic tuner" Are all tuners chromatic? Or can all tunes be used to tune
your instrument/system. I also would like to use the tuner to tune my other stand alone (semi/modular) synths.

Are both of these good choices? Which one is the most useful or should I pick none of both?

Thanks in Advance for your help!

Jazzy