StepMates — Walk Together

A private step tracking web app that syncs steps from your phone and lets you compete with friends on a leaderboard.

Live app: https://justinoros.github.io/step-tracker

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Features

• Passwordless email sign-in
• Admin approval for new accounts
• Real-time step sync from Apple Health (iPhone) or Health Connect (Android)
• Friend leaderboard with Today / Week / Month / Year / All Time tabs
• Friend requests by email
• Nicknames for friends (private, only you see them)
• Friend profile pages with average daily steps and last sync date
• Manual step entry
• Daily step goal with progress bar
• Pull-to-refresh
• Mobile-first, installs to home screen as a PWA

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How to Join

1. Go to https://justinoros.github.io/step-tracker
2. Enter your email address and click Continue with Email
3. Check your email for a sign-in link
4. Choose a display name and complete setup
5. Wait for administrator approval — you'll receive an email with a sign-in link when approved

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Syncing Steps

iPhone

1. Download Health Auto Export from the App Store (free tier works)
2. Sign in to StepMates → hamburger menu → Setup & Sync → copy your Webhook URL
3. In Health Auto Export → Automations → New Automation → Webhook → paste URL
4. Select Steps → set Date Range to Default → set schedule to Daily

Android

1. Download the StepMates Sync Android app: Download StepMates-Sync-Android.apk
2. Install it (allow unknown sources when prompted)
3. Sign in to StepMates in your browser → hamburger menu → Setup & Sync → copy your Webhook URL
4. Open the StepMates Sync app → paste your Webhook URL → tap Sync My Steps
5. Grant Health Connect permission when prompted
6. Your steps will sync — open the app any time to sync again

Note: Make sure your fitness app (Google Fit, Samsung Health, etc.) is syncing to Health Connect on your Android device.

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Tech Stack

• Frontend: Vanilla HTML/CSS/JS, hosted on GitHub Pages
• Backend: Firebase Firestore + Cloud Functions (Node.js)
• Auth: Firebase Authentication (passwordless email link)
• Android companion: Kotlin + Health Connect API

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Project Structure

step-tracker/
  index.html        — Main web app
  config.js         — Firebase config (safe to commit)
  README.md         — This file

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For Developers

This is a private app — new registrations require admin approval. If you want to run your own instance:

1. Create a Firebase project
2. Enable Firestore and Authentication (Email link sign-in)
3. Copy config.js and fill in your Firebase credentials
4. Deploy the Cloud Functions from the functions/ folder
5. Host index.html and config.js on GitHub Pages or any static host

Firestore Collections

Collection	Purpose
users	Email, webhook token, approval status
profiles	Display name, avatar URL
steps	Step data by date
friends/{uid}/list	Friend relationships (subcollection)
pendingFriendRequests	Pending invites for unregistered users
rates	Rate limiting for magic link emails

Cloud Functions

Function	Purpose
webhook	Receives step data from bridge apps
sendMagicLink	Sends branded sign-in email
adminNotify	Notifies admin of new registration
approveUser	Approves/denies user, sends approval email
friendRequest	Sends friend request email, creates friend docs