Scratchcam L ($ 1.99) is a good app for adding grunge. Mix and match various textures, scratches, and color shifts to create vintage, rough looking photos. It also has the option for randomized effects and allows you to save your favorite presets to use later on.
For inspiration and tips, check out three of the web’s best iPhoneography blogs - Life in LoFi, The iPhoneography Blog and iPhoneography Central. Here you can find detailed reviews of apps, interviews with iPhoneographers about their techniques, and weekly round ups of some of the best iPhone photos found on Flickr. The more you play around with all these apps, the more you will start to shoot with specific filters and techniques in mind. You will also start to learn which effects from which apps you can mix together for even more original results. Like all things aesthetic, beauty is in the eye of the beholder. iPhoneography is truly what you make of it. If you want simple, you can have simple. If you want complex, you can get extremely complex. The most important rule is that there is no rule. Have fun with it, experiment, get creative. You may be amazed with what you are able to come up with.
