The Roadie Tuner is an automatic tuner for stringed instruments. I was curious if it would work with the bouzouki. As it was a lot cheaper on Black Friday I bought it via Amazon to give it a try.
If you want to know more about it look here.
There's an app that goes with it where you can specify your preferred tunings. For GDAD you have to build a new instrument which only takes a few minutes. You even can take a photo of your instrument if you like.
I first tested it on my guitar tuned DADGAD and it worked fine. Tuning went fast with no problems. So I really was impressed at first time.
But then I tried my Foley ... and my Fylde and another Foley and another bouzouki. What should I say, tuning with a standard digital tuner is much faster and more accurate. I tried it several times and never got a correct tuning. So I can't recommend it for Bouzouki, although I think the idea is good. But 139€ is a lot of money for a device that screws your pegs just like your fingers can.
The video I did is not very professional and I did not edit the process of tuning to show how long it takes and how strange the device sometimes works.
As a result I'll definitely send it back. Maybe I'll give Roadie 6 a second chance ;-)