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Two-Person Training Tracker

Two Up Fitness Tracker

A private two-person fitness and nutrition tracker built for partners running the same training block, with shared daily logging, GPS run tracking, and weekly progress reviews.

Next.jsReactTypeScriptTailwind CSSSupabaseCapacitor
Industry
Health & Fitness
Outcome
Two-Person Training Tracker
Type
Personal Project

Project Overview

How The Project Came Together.

Two Up is a private, mobile-first fitness tracker built for two people training the same program together instead of the usual single-user fitness app. The product centers on shared accountability. Both partners log calories and protein against personal targets, workout completion, runs, drinks against a weekly cap, energy, and weight trend, then see each other's day side by side. The goal was to replace scattered notes across calendar, email, and memory with one fast daily-use app. It is built as a real product surface rather than a demo: Supabase auth and data, a food diary with barcode lookup, an immersive GPS run recorder with route maps and splits, weekly review screens, and a Capacitor native shell so the same codebase can ship to phones. It shows how CSolutions can take a focused consumer app end to end, from daily-use workflow to native distribution.

Challenges

What The Project Worked Through.

  • Designing a fitness app around two people sharing one training block instead of a single user.
  • Keeping GPS run recording alive across tab switches and locked screens without desyncing two partners running together.
  • Shipping one codebase to both web and native phones through a Capacitor shell on a shared Supabase backend.

Takeaways

What I Learned From The Build.

  • Shared-accountability design changes the data model: everything is per-person but read side by side.
  • Run tracking has to survive backgrounding and navigation or the recorded distance quietly drifts.
  • A focused daily-use app earns adoption when logging is faster than the notes and spreadsheets it replaces.

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