GuitarTuna enables you to tune your stringed instruments.

Although it only says "guitar" in the name, this app will tune a ukelele, bass, acoustic or electric guitar, as well as other stringed instruments. The easy-to-use interface shows you if the string is out of tune and which way to adjust it.

There is also a metronome included along with a library of chords where you can see diagrams of finger positions to help you play the right chord. And there is a tuning fork that can play a tone to keep you on key.

Feature-packed and easy to use, GuitarTuna is a great tool for new or experienced players alike. And it's free! So pick up that guitar and get playing!