A mobile app that uses AR/camera-based measurement to scan the staircase area, identify mounting points, and recommend or custom-configure baby gate solutions that fit the exact dimensions and shape. The app would partner with gate manufacturers to offer made-to-measure gates ordered directly through the platform, or provide detailed specs for DIY installation with compatible hardware kits.

Smartphone AR capabilities (LiDAR on iPhones, ARCore on Android) have matured enough to enable accurate room scanning by consumers. Meanwhile, split-level and open-concept home designs are increasingly popular, making non-standard stair layouts more common than ever.