Heavy Duty - AI-guided - Free beta

AI strength training for busy founders.

45-minute Heavy Duty sessions built on Mike Mentzer's HIT principles, planned, timed, and tracked by an AI coach that adapts to your meetings, travel, and stress.

FitEntrepreneur — Progress
Progress
Stronger +12.4%
Workouts 47
PRs 9
Consistency 94%
Strength progression Est. 1RM · 12 weeks
45
min per session
4-7
days between sessions
94%
median consistency
248
hours saved per year
Workout runner

A training console, not a logbook.

Everything you touch mid-set is one tap: weight, reps, the failure toggle, log. Rest is timed for you. Nothing else is on the screen, because nothing else matters between sets.

  • Large numeric inputs you can hit with shaking hands
  • Automatic rest timer tuned to the lift
  • PR detection acknowledged, not celebrated with noise
Set 3 of 4

Incline Bench Press

01:47 rest remaining
Weight 92.5 kg
Reps 6
My incline bench stalled at 92.5. What do I change?

That's a genuine plateau, not noise. Drop to 87.5 kg, own 4 x 7 to failure, and extend top-set rest to 3:00. I've staged the change for Friday's Push A.

Date Top set Est. 1RM
Apr 2 92.5 kg x 6 110.7 kg
Mar 26 92.5 kg x 5 107.9 kg
AI coach

A coach that reads your numbers, not a cheerleader.

The coach sees every set you've ever logged. It spots plateaus, adjusts load and rest, and stages program changes you approve with one tap - in plain, professional language.

  • Answers grounded in your actual training history
  • Programs adapt to stress, sleep, and travel
  • Changes are staged, never silently applied
Progress

Audit your strength like revenue.

Estimated 1RM, personal records, and consistency tracked like business metrics - calm charts, real deltas, no vanity numbers. If the line isn't going up, the program changes.

  • Strength progression across every lift
  • Consistency scored on frequency, progression, and volume
  • Time saved versus traditional training, quantified
Strength progression Est. total 1RM - 12 weeks
+12.4% stronger
9 PRs this quarter
94% consistency
The method

Built on Mike Mentzer's Heavy Duty principles.

High-intensity training is the inverse of the fitness industry: less volume, more intensity, full recovery. It was designed for people who don't have time to waste.

I

Brief

One working set to failure does the job of five half-efforts. Sessions end in 45 minutes because more wouldn't help.

II

Intense

Every set is taken to true muscular failure - the only signal that reliably forces adaptation.

III

Infrequent

Muscle grows between sessions, not during them. You train every 4-7 days, calibrated to your stress and sleep.

How it works

From assessment to first session in five minutes.

01

Take the assessment

Seven questions on your goal, lifestyle, stress, sleep, and experience - the inputs that determine recovery capacity.

02

Get your program

A Heavy Duty program built for your schedule and equipment, with loads, rep ranges, and rest calibrated to you.

03

Train and adjust

Run sessions in the console. The coach watches every set and adjusts the program as your numbers move.

From the beta

Founders who stopped skipping training.

"Two sessions a week and my numbers finally move. The first program that respects a board calendar."

EM
Elena M. SaaS founder - beta

"The coach told me to train less. It was right - every lift is up since February."

DR
David R. Agency owner - beta

"I stopped negotiating with myself. The console makes the session frictionless, so it happens."

PS
Priya S. Fintech exec - beta
Konstantin Apostolov

"I built FitEntrepreneur because I was tired of choosing between building my business and building my body."

Konstantin Apostolov Founder, FitEntrepreneur

Train like you run your company.

Take the five-minute assessment and get your Heavy Duty program today. Free while in beta.

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