A fitness app that adjusts to your real progress

Stop guessing. MuscleBuddy auto-tunes your loads, macros, and recovery from the data you already log — no spreadsheets, no scratch math.

Related features

  • Training — 5 progression methods, reactive deload, exercise KB.
  • Nutrition — Auto-adjusting macros, reverse diet, carb cycling.
  • Health — Recovery score, bloodwork tracking, supplement stack.

Smart progression that knows when to push and when to back off

MuscleBuddy ships with 5 deterministic progression methods — double progression, linear, RPE, percentage, and wave. Pick one or let your coach configure it for you. Hit your target reps two sessions in a row? Load auto-increases. Miss reps three sessions running? Targeted deload on that exercise only — not a blanket reset of your whole program.

This isn't a calendar-based "deload every 5th week" approach. It's reactive: your training adjusts only when your data says it needs to. You log the work. The app handles the math.

Macros that adapt to your weigh-ins automatically

Your TDEE shifts as you gain or lose weight. Most apps make you redo the math monthly. MuscleBuddy maintains a 7-day rolling average of your weigh-ins and adjusts your calorie target when the trend diverges from your goal — explaining exactly what changed and why.

Cutting? Maintenance? Reverse dieting? Carb cycling? Contest prep? All five modes are first-class, configurable per phase. You always see why the number changed.

Offline-first, mobile-first, your data stays yours

Log workouts in airplane mode. Sync when you reconnect. Your workout history, food logs, weigh-ins, and progress photos belong to you — exported anytime, deleted on request, never sold.

When a coaching relationship ends, your coach loses access to your data. You don't lose anything.

Frequently asked

Do I need a coach to use MuscleBuddy?
No. The progression and nutrition engines work fully self-coached. A coach can be added later if you want one — they get access only to what you allow.
Will MuscleBuddy work with my existing program?
Yes. You can log freely without using a generated program, or import sets/reps/RPE from any external program. The progression engine kicks in once you log a few sessions.
What does the free tier include?
Workout logging, program generation from 5 templates, double progression, and full offline sync. The Pro tier ($9.99/mo) adds nutrition tracking, AI coach insights, the health module, and social features.
How is this different from Hevy or Strong?
See our detailed comparisons at /vs/hevy and /vs/strong. Short version: those apps are excellent loggers; MuscleBuddy adds reactive nutrition + AI check-in analysis + coach tools in the same product.
Can I switch progression methods mid-program?
Yes, per-exercise. Switch one lift to RPE and leave the rest on double progression — your call.

Start logging — free forever

No credit card. No upsell wall. Upgrade to Pro only if you want nutrition tracking + AI features.

Start free