HDRtist is from Ohanaware gives you the chance to work like a real HDR photographer. The program, long popular among Mac users, has been redesigned and now the interface has become easier to use and there is support for multiple mapping, and it can be used with multiple exposures or just a single image.
Crystal Space is a free software development kit (SDK) that can provide professional looking real time 3D graphics. The software is cross platform and it can be used for virtual reality, games and many others. This is a full featured set with modularity, rendering, shaders, lighting, meshes, scene management and more.
Fotor Photo Editor by Everimaging is a free but state of the art photo and collage editor. There is no shortage of editing tools on the App Store, but this is definitely one of the best. Not only is it easy to use but the features, including collage, photo enhancement and effects among others, rival commercial software.
RIOT is a free image optimization tool for Windows. Created by Lucian Sabo, the program has an easy to use interface so you can easily compare an image before and after optimization. Another advantage of this program is that it is light and it can be integrated with GIMP XnView and IrfanView.
One of the most common complaints with free image editors for the iOS is they lack special effects and is very basic. Fortunately that’s not the case with Space Effect. This cool app lets you apply more than 70 special effects that will spice up any image you have in your mobile device. Published by click2mobile, you can transform an ordinary picture into something eye catching.
Studio Design from Overlay Studio is a free app that helps unleash your creativity on the iOS. With it you can easily make your own design, and you can modify any photograph and add extra meaning to it. There are over 500 free shapes and fonts here, and you can color various elements in a picture and share them over social networks.
Camera Awesome from publisher SmugMug is a full featured camera app for the iPhone and iPad. There are several options here that you can use to improve your camera shots. It has many features such as a spirit level for shooting straight, and you can get the exposure set with a single touch.
Screenshoter is a screen capture utility from InspireSoft. A screen capture program can be handy when you have to document a favorite web page or diagnose a computer problem among other tasks. This free application can do virtually anything users will require. Fortunately it doesn't have the complexity that comes with powerful screen capture apps.
Absolute Vintage Studio Lite from developer David iSoft is an app that allows you to add a vintage look to your photos. This app works for the iPhone and iPad. With this app it’s very easy to select a picture from the library and put your face (or your friends) on a body and edit it so the image looks older. You have the opportunity to not just change the color but also add glasses or cigars to your image.