HeavyMuscle is a workout tracker for people who train seriously. An AI coach in two modes builds your plan from a single sentence, adapts every session around your injuries and equipment, and reviews your week with objective feedback — then flags plateaus before you stall. A recovery body map shows which muscles are ready to train today. 873 animated exercises and a real rest timer, in 6 languages, usable offline from the first second.

AI Coach
• Two modes: Conversation for questions and adjustments, and Builder to generate a full plan from scratch.
• Generates a full workout from a single sentence ("30 min chest workout without barbell").
• Adapts today's workout to your injuries, available equipment and experience level.
• Reviews your last session or the full week and gives objective feedback.
• Detects plateaus and suggests when to add load.
• Generous daily quotas, synced across devices.

Session and training
• Fast logging of sets, reps, weight and notes.
• Build your own plan around your routine, or ask the AI Coach to create one from scratch.
• Rest timer with 3-2-1 beeps, distinct end sound, haptics and keep-awake screen.
• Set kinds: warmup, drop-set, failure and cluster, plus super-sets.
• Reorder and swap exercises mid-session.
• Quick Start for ad-hoc workouts without a template.
• Retroactive logging: add a past workout from the history screen.
• Share a session as a post-ready image card (volume, sets, muscles).
• Daily reminders by day of the week, fixed time or per-day schedule.

Exercise library
• 873 exercises with animated form demonstrations.
• Every movement ships with a form GIF, target and secondary muscles, equipment and difficulty.
• Mark favourite and avoided exercises — the AI Coach and Builder factor them in when generating your workouts.
• Filter by equipment, muscle group and difficulty.
• Group by muscle, equipment or difficulty.

History and analytics
• Calendar with monthly volume, sets and training days.
• Post-session muscle heatmap and monthly muscle breakdown.
• Muscle recovery per muscle: body map (front/back) with fatigue status bars — fatigued, recovering or ready.
• Weekly volume per muscle: switch between a body heatmap or a ranked bar chart — your choice.
• Configurable period: this week, last week, 2nd and 3rd previous week, current or previous month.
• Volume zones (low < 10 sets / optimal 10–20 / high > 20) with percentage delta vs. the previous period.
• Sort by date, volume or set count.
• Filter by template or muscle.

Full profile
• Body measurements with dated history.
• 10 injury zones (knee, shoulder, lower back, neck, elbow, wrist, hip, ankle, upper back, pelvis) with automatic filtering in the catalogue.
• Gender-aware workout builder that respects your equipment, goal and experience level.
• Metric or imperial units.

Privacy and offline
• Works fully offline in anonymous mode: nothing leaves your phone until you sign in.
• Optional Google or e-mail login syncs workouts, templates and measurements via Firebase.
• Optional Health Connect sync on Android: writes your sessions and reads your weight.
• Sign out anytime and choose to keep local data or wipe everything.

Wear OS (smartwatch)
• Free companion — log sets, control the rest timer and watch the time left on your wrist, with live heart rate saved to the session.
• Tile and Complication: start a workout in one tap from your watch face.

Languages and look
• English, Portuguese (BR), Spanish, German, French and Italian. Switch instantly, no restart.
• Dark, light or follow-system theme.

Everything is in the app from second one.