Instrument Types: Any instrument capable of sustaining a tone in the detection range
The pitch detection combined with the pitch pipe means that you can use it to tune almost anything tuneable. I've certainly tuned lots of weird things with Cleartune over the last couple of years. I'm not sure what this app brings to the tuner table, but I'd be interested to find out.
A lot of time was spent getting the pitch detection algorithm just right so you get a accurate and stable reading but get it quickly. This was more challenging that I first thought it would be.
Also I felt it would be good to be able to use the pitch pipe without having to keep shifting back and forth between the instrument and guitar for each string so I added an automatic mode where it plays the nearest note back based on the one you played.
So, hopefully this app will prove a worthy contender