Most smartphone photos suffer from poor framing and composition, despite excellent camera hardware.
Create an overlay app that shows golden ratio guides, symmetry lines, and rule-of-thirds grids in AR. Could suggest slight phone movements for better framing.
Freemium model - basic guides free, advanced features like style analysis paid. Monetize photography enthusiasts and social media creators.
Start with just rule-of-thirds overlay. Biggest risk is being copied by native camera apps.