Layover is a brand new from the developers of the incredibly popular Diptic iPhone photography app. Layover is different from Diptic although its features compliment it well. It is possible to blend up to five images, there are 15 blend effects, the images are square by default but portrait/landscape ratios are available. You can save to camera roll or send to email, you can use a base layer on any color of the rainbow to add filtering to even just one image and there’s more. This app retails for $0.99/£0.69 and you can download it here.