Smartphones are great, they not only let you make phone calls and send texts while you're on the go, but you can also listen to music, watch videos, surf the web and read documents. There are also plenty of apps that can help turn your smartphone into a Swiss army knife-type device, with many other function you probably never dreamed of. Here's our five favourites that will ensure you can do everything with your Google Android device from a flash light to a compass.

Tiny Flashlight + LED

Turn you smartphone into a torch And help you find whatever you've dropped under your bed or simply on the floor at the night. The Tiny Flashlight + LED app you're your phone's camera LED flash (if you've got one) or screen light. You can even change the colour of the flash light.

ConvertPad - Unit Converter

We know your smartphone has a calculator, but if you want to convert inches into centimeters or dollars into euros, you'll need to remember the equation that'll let you do it. However, with this free app, you can simply input the unit you want to convert and let it do the hard work for you.

Super Compass

Work out which direction you need to go with the help of Super Compass.

Smart Measure

Smart Measure is a range-finder (telemeter) that calculates the distance and height of an object by trigonometry. Just stand up and press the shutter, first ensuring the camera is also aimed at the ground.

Bubble Level

This app means you can any of your smartphone's four sides against an object to test it for level or plumb, or lay it down on a flat surface for a 360 degree level.