Photo FX Ultra by the Tiffen Company
Photo FX Ultra is one of the best apps for applying filters and effects to your photographs. As you can see below, Photo FX offers a range of filters, including adjustment tools for further refinement. The app is especially noted for its use of gradients and light effects that allow you to add light reflections in the form of floral patterns and flares. The app is $4.99 in the App Store.