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Web ApplicationDemo build
BrawnBar
A personal health and fitness tracking platform with nutrition logging, workout planning, and progress analytics, completely free, no ads, no data selling.
100% Free · Zero Ads · Full Nutrition + Fitness Tracking
- Next.js
- TypeScript
- Supabase
- Tailwind CSS
Shipped14 days · Web Application
StackNext.js · TypeScript · Supabase
Outcome (lab)100% Free · Zero Ads · Full Nutrition + Fitness Tracking
brawnbar.vercel.app
brawnbar.vercel.app
The Challenge
Concept brief: most fitness apps charge $10+/mo, run ads, or sell health data. I built a fully-featured tracker that's free, with no paywall and no tracking.
The Solution
Privacy-first Supabase with Row-Level Security (data isolated per user), local-first nutrition log (instant sync), custom exercise library + progressive overload engine.
Key Outcomes (lab)
- Privacy-first architecture with RLS
- Offline-capable nutrition logging
- Custom progressive overload engine
Engineering outcomes (lab)
Measured on Demo Deploys
Data Privacy
Sold to brokers
Before
Zero tracking
After
Monthly Cost
$12/mo avg
Before
$0
After
Offline Support
None
Before
Full nutrition logging
After
Lab-measured on demo deploys (Lighthouse + manual timing) — not client Google Analytics or Stripe revenue data. No client affiliation implied.
Next Project
E-Commerce