A mobile app where parents photograph their staircase from a few angles; computer vision measures the opening width, identifies mounting surfaces (wall, banister, newel post), and flags complications like curves or overhanging steps. It then recommends specific compatible gates from major retailers, shows exactly where and how to mount them, and offers an optional add-on kit (adapter posts, banister clamps) shipped directly for non-standard setups.

The baby-proofing market is growing as millennial and Gen-Z parents increasingly shop online but find generic product listings inadequate for real-world home layouts. Advances in phone-based AR measurement (LiDAR on iPhones, ARCore on Android) now make accurate remote measurement viable without professional home visits.