Own The
Diamond
The only training engine built exclusively for baseball players. Data-driven performance engineering that adapts to your arm, your position, and your goals — every single day.
BaseballFit is on iPhone first. Drop your email and we’ll tell you the moment Android is ready.
Arm Stress
Score
Your arm is your career. Log every throwing session and BaseballFit turns it into a daily arm-stress score — a clear read on when to push and when to back off. When stress runs high, your workout automatically reshapes itself so you keep training without overloading your arm.
- ▸Time-weighted 7-day score — recent throws count more, older ones fade as your arm recovers.
- ▸High stress auto-shifts your session to lower body, core, and arm-care work — a productive day, not a lost one.
- ▸Age-adjusted and free for every user, forever.
Position-Specific
Focus
Tap your spot on the field to see how BaseballFit reshapes your training around the real demands of the position.
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Season-Based
Training
Your plan changes with the calendar. Tap a phase in the cycle to see how BaseballFit shifts volume, session count, arm care, and exercise selection through the year.
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Muscle Readiness
System
Stop guessing which muscle groups are ready to train. Our time-based recovery model accounts for training intensity, muscle size, and eccentric load across 8 key groups.
Game Plan
Every athlete gets a plan built around their position, season phase, and readiness — not a generic template. BaseballFit rebuilds your daily session from the ground up so the work always fits the player.
- ▸Position-specific programming for pitchers, catchers, and position players.
- ▸Auto-periodized across off-season, pre-season, and in-season phases.
- ▸Adjusts session-to-session based on logged workload and recovery.
Coach's Call
Tap any exercise and get a straight answer to “why am I doing this?” Coach's Call turns the math behind your plan into plain-language coaching — right when you're doing the work.
- ▸Explains why each exercise is in your plan and what it builds for your game.
- ▸Tells you why today's weight, reps, or sets changed — progression, deload, or a hard-earned jump.
- ▸Talks like a coach, not a spreadsheet — and adjusts its voice for younger athletes.
Grows
With You
Every plan scales to the athlete's age — safety limits, lifting ceilings, and feature availability. Tap an age range to see what changes.
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{{ ageDetail }}Common Questions
Is this just another workout app?+
Is it free?+
When is Android coming?+
Is it built for younger players?+
What about my data and Apple Health?+
Train Like The Pros
BaseballFit is in free, open beta on TestFlight. Join now and put a data-driven strength coach in your pocket this season.
✈︎ Join the free beta onTestFlightTerms of Service
Effective Date: June 20, 2026