A mobile app where parents photograph their staircase from multiple angles, input key measurements, and receive instant matches from a comprehensive database of baby gates with compatibility scores. The tool accounts for mounting surface type (drywall, banister, spindle), staircase geometry (L-shaped, curved, split-level), width, and constraints like no-drilling for renters, providing purchase links and installation guidance for each match.

The baby-proofing market is growing as millennial and Gen-Z parents increasingly live in older homes, townhomes, and rentals with non-standard layouts. Rising e-commerce return rates for home safety products create demand for a fit-verification tool that reduces costly trial-and-error purchases.