Zyno

AI-powered fitness, native iOS. Programs that learn your body.

A fitness app for people who already train. Workout programs that adapt to your performance, recovery, and the equipment you actually have access to today. No celebrity trainer marketing, no infinite-scroll feed.

Pixel-exact SwiftUI on iOS, Health Sync via HealthKit (steps, sleep, heart rate), Fastify + PostgreSQL backend hosting the AI program-generation logic.

The problem

Most fitness apps either lock you into rigid programs or dump you in front of an empty timer. Neither helps the person who already knows they want to train but does not want to design every session themselves.

Our solution

AI program-generation that picks the next session based on what you actually did yesterday, what your body is signaling via Health Sync, and what equipment you logged this morning. Native SwiftUI, no Electron, no React-Native bridge tax.

Platform: iOS-first (native SwiftUI)
Health Sync: HealthKit (steps, sleep, HR)
Backend: Fastify + PostgreSQL on Hetzner

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Bring us the part of the roadmap that scares you.

Tell us what is blocking the launch. We scope it in two weeks, build it to production, and stay on call after it ships.

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