---
title: "VITAL: Built with ProductOS | ProductOS"
description: "Vital is a coach in your pocket, not a spreadsheet: miss Tuesday's session and Wednesday's plan has already rebalanced the week; photo your lunch and macros adj"
url: https://productos.dev/showcase/vital
---

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Mobile app Develop surface

VITAL

# An AI fitness coach that re-plans your week when life interferes, a real native mobile app

Vital is a coach in your pocket, not a spreadsheet: miss Tuesday's session and Wednesday's plan has already rebalanced the week; photo your lunch and macros adjust dinner. The first ProductOS mobile case study is a real Expo / React Native app, five tabs (Today rings + streak, conversational coach, photo-scan meal log, adaptive weekly plan, profile), a workout player detail flow, a weekly review where the coach proposes and the user approves, and a weekly-first paywall, seeded five weeks into a recomposition block and explorable live in the browser through its web export.

[View live ](https://vital-8pmm.vercel.app/)

VITAL · Live project

## How it was built

- Mobile product brief + five-weeks-in seed state planned by the Coding Agent
- Athletic dark-performance DESIGN.md tokens adapted into native StyleSheet themes
- Expo Router app: 5 tabs + workout, review and paywall flows, hand-rolled SVG rings
- App-store hero + lifestyle stills generated by the AI media pipeline
- Static web export wrapped in a device-frame shell, deployed from the productos-agents org

## Stack

Expo SDK 56 React Native Expo Router TypeScript AI media pipeline

## Built on

[ProductOS Develop surface ](https://develop.productos.dev/)

87%

week-4 retention on coached plans

\~3s

photo-to-macros scan

1,200+

exercise library

## Build something like VITAL

Give the agents a brief. Get a deployed product. Every project in the showcase started as a single prompt.

[Start building](https://beta.productos.dev/sign-up?utm%5Fsource=productos.dev/showcase) [Back to Showcase](https://productos.dev/showcase)