TC Electronic has released PolyTune - their polyphonic tuning application - as a free download for the iPhone, iPod touch and iPad, for a limited time.
Here's what they have to say about PolyTune:
The PolyTune iPhone app is a 1:1 port of the award-winning PolyTune pedal tuner, and PolyTune for iPhone delivers exactly the same features and tuning technology as the pedal version. However, you probably don’t want to mount your iPhone to your pedal board, so that’s what the PolyTune pedal is for.
PolyTune for iPhone, on the other hand, is the fastest and easiest way to tune at home, in the band bus or backstage before the gig.
You can set the reference pitch anywhere from 435Hz to 445Hz, so you can play with anyone, with any instrument and in any situation. And if you like to drop tunings, you can go from E-flat all the way down to B.
PolyTune is also a chromatic tuner with an amazing 0.5 cent accuracy, and it has two chromatic tuning modes: Needle and Stream. Needle Mode is the classic tuner view, and if you want a little more real-time information, the Stream Mode visualizes even the slightest pitch as a rotating motion.
If you've used TC Electronics' PolyTune, leave a comment with your thoughts!
Pricing and Availability
PolyTune is available for a limited time as a free download.
Using Chains and automation to switch keyboard setups
Affordable workstation type keyboard