Recently, we featured an article on the best vintage camera apps for the iPhone. But what about photos you've already taken on a camera? Well, now there's Lo-Fi.
It follows a similar principle to the mobile apps, but operates on your PC or Mac to offer retro effects for existing photos. You can mix a wide range of effects from the film world, such as grain, colourful cross processing, lens blur, light leaks and frames. Combine more than one to create something unique. You can even hit a button for random effects, if you can't be bothered tweaking.
Along with editing, there's also easy sharing via Flickr and Facebook and if you want to try it out, there's also the option to try for free. If you like, the full download sells for $29.