Gym Hero

Gym Hero

The Future of Gym Tracking—Private, Smart, On-Device AI.

171 followers

Gym Hero is a privacy-first fitness app that integrates on-device intelligence with advanced health tracking, combining smart workout management with deep insights into recovery, performance, and overall well-being.
Gym Hero  gallery image
Gym Hero  gallery image
Gym Hero  gallery image
Gym Hero  gallery image
Gym Hero  gallery image
Gym Hero  gallery image
Gym Hero  gallery image
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What do you think? …

Daniel James Tronca

Hey Product Hunt! 🚀 After over a year of development, let me introduce Gym Hero biggest update—a privacy-first, on-device intelligence-driven workout and health tracker for Apple users.

The Problem:
Most gym apps fall into two extremes:
1️⃣ Overcomplicated solutions with bloated features that resemble an exercise encyclopedia.

2️⃣ Basic tracking tools that force you to juggle notes, timers, and multiple health apps.

The Solution: Gym Hero
I built Gym Hero to bridge this gap—a native, Apple-first fitness tracker that combines intelligent workout tracking, deep health insights, and on-device AI—all while keeping your data private and offline.

Key Features

🧠 AI-Powered Smart Coach
On-device machine learning (MLX) analyzes performance and refines workouts.
AI-generated workouts based on your goals, fatigue levels, and training history.
• Real-time execution feedback to ensure proper form and maximize results.

📊 Deep Apple Health Integration
• Tracks HRV, sleep quality, calories, hydration, steps, and body metrics through Apple Health.
• Your training meets recovery—monitor fatigue and optimize performance.
• Your health data remains yours—securely stored in iCloud & Apple Health, even if you stop using the app.

🔐 Private by Design
• No data tracking, no servers—everything runs locally on your device.
iCloudKit sync ensures seamless multi-device sync while keeping your data private.
• Works offline, so you’re never dependent on an internet connection.

🏋️ Effortless Workout Tracking
• Works offline, no internet needed—your data stays on your device.
Syncs seamlessly across iPhone, iPad, Mac, Apple Watch, and VisionOS.
Live Activities & Lock Screen widgets keep you in the zone during workouts.

Why Gym Hero?
For the Committed Gym-Goer: Designed for those who already have a plan and need precise, efficient tracking.
Streamlined & Efficient: Focus on what matters—smart tracking and coaching without the bloat.
Apple-First Experience: Optimized for iOS, iPadOS, macOS, watchOS, and VisionOS, harnessing the full power of the Apple ecosystem.

Thousands of users already love it. Once you experience Gym Hero’s intelligent tracking, deep health insights, and seamless integration, there’s no turning back.

I Value Your Feedback

🔥 What features would you love to see next?
📊 How do you currently track your workouts?
💡 Got any ideas for Smart Coach improvements?

Drop a comment and let’s make Gym Hero the ultimate gym companion! 💪

Daniel James Tronca

@masump Hey Masum, Gym Hero is fully integrated with Apple Health. This means that HRV, sleep, and other data are specific to each user. Gym Hero simply uses an algorithm to compare these values with past trends and present a single, easy-to-read metric.

James O'Reilly

Congratulations on the launch! 🚀
Gym Hero looks amazing. I've never seen on-device AI in the fitness app industry before. Bravo!

Daniel James Tronca

@jrhey Hey James, thanks so much for the comment! To the moon. 🚀

Jonas Urbonas

Congrats on the launch! 💪 Love the focus on privacy and smart tracking without all the extra fluff. How does the AI-generated workout feature adapt to different fitness levels and training styles?

Daniel James Tronca

@jonurbonas hey Jonas, thanks for your message!


Right now, AI-generated workouts still rely on OpenAI. It’s the last thing I plan to migrate because it provides more variety and accuracy compared to a 1B/3B parameter model.


The process is pretty straightforward—you fill out a short questionnaire with a few questions, and the prompt is optimized to generate a workout routine that aligns with a set of parameters created alongside a certified personal trainer.

Sami Hindi

I just installed it, this seems amazing!

Daniel James Tronca

@samihindi thanks, Sami—I really appreciate it!

Ege from UserAnalytics.AI

Congrats on the big update! 🚀 Love the focus on privacy-first, on-device intelligence—so many fitness apps rely on cloud-based tracking, so keeping everything local while integrating deeply with Apple Health is a huge win. The AI-powered Smart Coach sounds like a game-changer, especially with real-time execution feedback and adaptive workouts. Excited to see how this evolves! Definitely a must-try for serious gym-goers. 💪🔥

Daniel James Tronca

@ege_from_useranalytics Thanks for the comment! That’s exactly the message I wanted to convey—I’m glad it came through.

João Velo
Congratulations on this. Using Al integrated into public health needs is amazing
Daniel James Tronca

@joao_velo Thanks, Joao. I think there will be plenty of opportunities in local privacy AI with health data.

Ajay Sahoo

Considerable wholesome package for wellness.

Daniel James Tronca

@ajay27324 Thanks, Ajay—I really appreciate it!