1 Day at a Time — AI Fitness Companion
1 Day at a Time (1daat) is an AI-powered fitness companion built around a simple idea: win today, not perfection. Instead of long-horizon diet plans that collapse under real life, the product focuses on one day — missions, meals, journaling, and a coach that helps you stay on track.
We designed and shipped a mobile-first Progressive Web App with Google sign-in, adaptive day plans, coach chat, journey reviews, and push reminders — live at onedaat.com and featured on Product Hunt. The build compressed from first MVP UI to production in days, then iterated hard on AI architecture, mobile UX, and installable PWA reliability.
View live product →Timeline
1 week MVP → ongoing
Technology
React, Vite, Firebase, Gemini
Team
1–2 Developers
Platform
PWA (Web & Mobile)
THE PROBLEM
Most fitness apps chase perfection — weekly calorie targets, rigid meal plans, and guilt when life gets messy. People abandon them because the product fights real days instead of winning today.
OUR SOLUTION
We built 1 Day at a Time (1daat) as a mobile-first AI fitness companion PWA: adaptive daily missions and meals, natural-language journaling, and a coach that plans the day — not a stream of micro-reactions. Firebase Auth, Firestore, Cloud Functions, Gemini, and web push power a installable experience at onedaat.com.
Outcomes
- Shipped MVP to production in under a week — from UI to live PWA with Google sign-in
- AI daily brain with six capabilities: planner, coach chat, adaptive regen, briefing, reflection, and memory
- Featured on Product Hunt with a repeatable screenshot and social publishing pipeline
