What are some alternatives?
When comparing Session and White Wall, you can also consider the following products
Formulas - Photo lab effects and custom frames
Level - An easier way to custom frame your posters, prints & photos
Framafoto - Custom frame your photos and digital art on iPhone
FamSnap - Find photographers near you for family portraits
Level Vinyl - Find and frame your favorite albums
Lens Distortion - Effects for photographers, filmmakers, and visual artists