It turns out, there is. LikeTones, a music-education company, offers a guitar tuner for Android and iPhone that's both free to use and free of ads and upsells. You can open this application ...

tone and an onboard guitar tuner. The A-10 Cocobolo’s spruce top is braced with torrefied Adirondack spruce in an X pattern. The fret edges have been treated by hand, smooth all the way.