FX Photo Studio has a ton of effects you can apply to your images, but it doesn't have live previews like other apps in the category.
Jason Parker
Jason Parker has been at CNET for nearly 15 years. He is the senior editor in charge of iOS software and has become an expert reviewer of the software that runs on each new Apple device. He now spends most of his time covering Apple iOS releases and third-party apps.
FX Photo Studio has an enormous number of effects to choose from, but it doesn't let you see the effect on your photo in advance of choosing it. Many other apps have live previews of effects.
