On your computer...	On your Android device...	On your Apple device...
Get-Tuned.com This simple app gives out a tone that can help you tune each string in. When tuning whole classes try leaving the 'C' tone sounding and tuning all the strings relatively to that tone.	Pitch Lab Guitar Tuner (Lite) This is a multi faceted app that has many different ways of tuning your strings through the microphone on your android device. The Lite version is FREE!	Tuner lite by Plusadd This is a simple chromatic tuner that tunes your strings through the microphone on your Apple devices. The Lite version is FREE!

As well as using your mobile devices there are also convenient clip on tuners. These come in many different styles but basically do the same thing - they clip on to the headstock of your instrument and detect the vibrations of sound through a piezo pickup within the clip.

My favourite model is the Clippon Clip on tuner .Light and tunes a multitude of instruments in different keys. Just be sure to keep it set to A4 440 setting on the display. This number represents the frequency of the 'A' being tuned in hertz. If its set wrongly by accident you may find yourself falling out with the others in your band!

A few helpful pointers...

• Whenever you're tuning your strings turn the peg slowly as you pluck the string

• Make sure you know the name of the string you are trying to tune. If your ukulele is very out of tune, or brand new, it may take some time to tension the string enough to reach this note on your tuner.

• Your strings will go out of tune naturally. It doesn't mean there is anything 'wrong' with your instrument. Do make sure that you start each playing session with the instrument in tune - it will help enormously!