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Mobile-First Web App - 100K Users in 6 Months

Needed cross-platform fitness app with offline functionality and real-time data sync.

Client context

Client: FitTrack Health

Problem

Needed cross-platform fitness app with offline functionality and real-time data sync.

What changed

Progressive Web App with React, offline-first architecture, Fitbit integration, and social features.

Result

100K active users in 6 months | 4.8 star rating | 60% DAU | 95% 30-day retention

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