Jumprope Tracker

A minimal, offline-first mobile app for tracking your jump rope workouts. Log your sessions, visualize your progress, maintain workout streaks, and crush your fitness goals.

Overview

A couple months ago, I started using a jumprope to improve my cardio and lose some weight. It's the most fun cardio I've ever done. But being the geek that I am, I also wanted to track my progress and see how I was doing. So I built this app.

I designed this app with a couple simple rules in mind:

• Offline-first: All your data stays on your device. No accounts, no cloud sync, no subscriptions.
• Minimal & focused: One thing, done exceptionally well.
• Delightful UX: Because if the UX isn't satisfying, I know I won't use it consistently.

Features

AI Training Coach

Chat with an AI agent to get personalized jump rope training advice.

• Personalized: The AI can access your workouts, goals, and other data to give you personalized feedback.
• Capable: Ask your agent to log your workouts or set your goals for you, all in natural language.
• History: Wanna find that one insight in that one old chat? View your past conversations easily.

Weekly Digest

Each week, the AI agent can generate a personalized review of your performance, analyze your workouts, and extract key insights from your notes.

Workout Logging

Track everything about your jump rope sessions:

• Duration: How long you jumped
• Total Skips: Your full skip count
• Avg Skips/Min: Automatically calculated from your duration and skips
• Trips: Track interruptions or misses
• Calories: Estimated calories burned (optional)
• Heart Rate: Average and max BPM (optional)
• Notes: Add context to your workouts

I should note that logging workout data is manual right now. It works for me. But it would be trivial to add a CSV or JSON import feature as well.

Goal Tracking

Set personal targets and stay motivated:

• Daily or Weekly Goals: Choose what works for your routine
• Multiple Goals: Track skips, calories, duration, or workout count simultaneously
• Progress Visualization: See how close you are to hitting your targets
• Automatic Resets: Daily goals reset at midnight, weekly goals reset on Monday

Streak Tracking

Build consistency with workout streaks:

• Consecutive Day Tracking: See how many days in a row you've worked out
• Rest Days: Mark planned recovery days to preserve your streak
• Streak Counter: A visual reminder of your dedication on the home screen

Charts & Stats

Visualize your performance over time:

• Multiple Chart Types: Bar, line, and area charts
• Flexible Time Ranges: View the last 7 days, 30 days, or 90 days
• Key Metrics: Track skips, calories, duration, skip rate, and more
• Lifetime Stats: See your total workouts, highest skips, longest duration, and best skip rate

Workout Sharing

Share your progress with friends:

• Shareable Cards: Generate beautiful workout summary cards
• Share Anywhere: Post to Instagram, Twitter, WhatsApp, or any other app
• No Watermarks: Clean, branded cards without intrusive branding
• Lifetime: Share your lifetime stats with a beautiful card

Data Export

I wanted to be able to export data cleanly so I can process it in other apps or whatever.

And besides, your data belongs to you:

• CSV & JSON Export: Download all your workout data
• Easy Backup: Save to Files, email to yourself, or upload to cloud storage

Perma-Dark Mode

Easy on the eyes. I'm not a fan of light mode.

Getting Started

1. Go to the Releases page and download the latest APK file, and install it on your phone.

2. Add your profile information (optional, but recommended; like I said, all data is stored locally.)
3. Log your first workout and start building your streak!

About the Author

I'm a freelance developer who builds web and mobile apps for people. This is a side project of mine, built only because of my new jumprope hobby.