Giles Bertheau

Founder of Vialto, a medical AI consumer app built solo and shipped live to the Apple App Store. Designed and built the full product end to end: native iOS app, backend, authentication, payments and subscriptions, and a multi-model AI engine integrated through third-party APIs with fallback handling and cost control. Took it through Apple's strict review for a health-adjacent app. Covers the full stack from product and UX to AI integration, infrastructure, and launch.