Filter Splash for iPhone/iPod Touch and Filter Splash HD for iPad are both free today. Filter Splash is a popular app that allows you to apply effects onto your images with a selection of twenty filters. Usually the iPhone app retails for $0.99/£0.69 and the iPad version for $1.99/£1.49 but today, you can pick up both for free. Links below: iPhone version/click here iPad HD version/click here