Inertia Fit

Stay In Motion

Inertia Fit — Stay In Motion
A workout tracker built for experienced lifters. Maximum customization. Minimal friction. Your numbers, your training, your way.
No Limits
• Unlimited custom workout splits and workouts
• Unlimited custom exercises with primary/secondary muscle targeting
• Swap exercises mid-workout without breaking your flow
• Reps or time-based tracking—your call
• Everything free. No paywalled features.
Stats That Matter
• Weekly, monthly, and yearly views—all with comparison to last period
• Four PR types per exercise: weight, reps, volume, and e1RM
• Period bests track your top estimated 1RM each month and year
• Muscle group distribution to spot imbalances
• Set-by-set comparison vs your last session
• Every workout card shows deltas at a glance
Long-Term Goals for People Who Follow Through
• Structured goal templates with projects, milestones, and tasks
• Progressive habit tracking with expected vs. actual curves
• Built for 12-24 month commitments, not quick fixes
Community
• Opt-in activity feed—share workouts, habits, and progress if you want
• Philosophy posts to share what actually worked (and what didn't)
• No engagement farming. No streak guilt. Just accountability with people who lift.
Why Inertia? An object in motion stays in motion. You've already built the habits. Inertia Fit helps you maintain momentum, track progression, and stay accountable—without getting in your way.
Download Inertia Fit. Stay in motion.