Musku
Track your lifts, beat records, share with any AI
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Julien Legrand

Musku - Track your lifts, beat records, share with any AI

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Musku is a strength training tracker built solo for iPhone. Share a structured summary of your workouts with ChatGPT, Claude or Gemini in two taps, with your profile included for relevant analysis. Truly offline-first: start and finish a workout without signal. Smart set pre-fill that shifts values when you change a set type. Daily coach tip computed locally, no inference. Live Activity, Apple Health sync, no ads, no social feed. Free for the basics.

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Julien Legrand
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Hey PH 👋 French indie dev here, shipping Musku after about a year of solo work. I'm a lifter myself and got tired of every workout tracker either turning into a social feed, drowning me in subscription walls, or just being clunky between two sets. A few things I tried to do differently: AI analysis your way. Instead of building yet another in-app AI coach with a $10/month subscription, Musku just generates a clean summary of your workouts and lets you share it to ChatGPT, Claude, Gemini, or whatever assistant you already pay for. Your profile (goal, experience, reported pain) is included so the analysis is actually useful. No API keys, nothing leaves your phone until you tap share. No social feed. No streaks shaming, no algorithmic discovery, no ads. You log, you progress, that's it. Free for the core (unlimited tracking, full exercise library, history). Premium unlocks advanced stats and the AI analysis screen. Cancel anytime. Built this because it's the tracker I always wanted to use. Would love your honest feedback, especially the brutal kind. Happy to answer anything 🙏 iOS only for now (Android is a possible 2026 project if there's pull).