Charming musical tapper Chimes comes to iPhone

Mixing colour and music in a pleasant manner, Chimes from student startup SRRN Games is well worth checking out.

For one thing it's free.

More importantly, it sounds and plays well.

The game starts with five static coloured circles - red, green, blue, yellow and purple - that you tap to release a similarly coloured,. concentrically expanding wave.

This needs to be matched to the coloured dots that enter the screen. Matching the correct colour makes those dots disappear; something you have to do before their path takes them offscreen.

Making things more different is that fact that each concentric wave is actually a double wave. This means that you can combine colours having, say an outer blue, inner red wave (or any other combination), by colliding your waves.

These compound waves are important because as wave of non-matching hue hits a dot, it will add an outer coating of a secondary colour, making your tapping action even fastest and more furious.

Add into the mix that different musical chimes are triggered every time you clear a dot, and you'll begin to understand how the game - and its combination of stress and calm - works.

Better still, just head over to the App Store and get the first ten levels for free.

An additional 13 levels, along with an expanded Forever or survival mode that will let you play more and more challenging levels until you make a mistake, cost 99c, €0.79 or 59p as an in-app purchase.