What are some alternatives?
When comparing Relook and Session, you can also consider the following products
TinType by Hipstamatic - Create vintage self portraits w/ Hipstamatic's new photo app
FamSnap - Find photographers near you for family portraits
Hueless - High-quality black & white photos from your phone
Formulas - Photo lab effects and custom frames
Lens Distortion - Effects for photographers, filmmakers, and visual artists
Framafoto - Custom frame your photos and digital art on iPhone