What are some alternatives?
When comparing Formulas and Lens Distortion, you can also consider the following products
TinType by Hipstamatic - Create vintage self portraits w/ Hipstamatic's new photo app
Ezimba - Different filters and effects for your photos, including animated and deep dream.
Framafoto - Custom frame your photos and digital art on iPhone
Deep Art Effects - Deep Art Effects transforms your photos and videos into works of neural art using artistic style transfer of famous artists.
Hawken - Hawken is an Action, Free-to-play, FPS, Robots, Science-fiction, Tactical, Futuristic, MMO, Co-Op and Multiplayer video game created and published by Reloaded Games.
White Wall - Turns your digital photos into wall art