When you are thinking about redecorating a room, it's easy to get carried away with paint pot testers and Pinterest pins. I came across this free app, Paint Tester, that allows you to test colours using a photo of your room. You can select just one wall or do the whole room. It's simple, cost-effective and fun!
Here is the original photo:
Here are a few examples of paint colours and how different they make the room look.
You can even change the shade of colour by playing with the brightness!