Amateur photographers want to try long exposure shots but lack the tools or knowledge to do so easily. A mobile app could make this accessible.
Build an app that guides users through capturing long exposure photos, with features like adjustable shutter speed and light trails.
Charge a one-time fee or offer in-app purchases for advanced features.
Start with a basic long exposure tool, then add tutorials and effects.
The biggest risk is competing with built-in camera apps that may add similar features.