Workouts · Nutrition · Coaching
XYFitAI learns which exercises you actually finish, how much volume you tolerate, how quickly you recover and what you genuinely burn. Then it tells you all of it — including how confident it is, and where each number came from.
Showing its work — your weight, as the app reads it
Three systems, one profile
Not three apps in a trench coat. Everything you log feeds a single profile, and every part of the app decides from it.
Training
Take a proven split — Push/Pull/Legs, Upper/Lower or Full Body, at three, four or five days. Or hand the AI your equipment, experience, focus areas and available days and let it build something that exists only for you. Or assemble it yourself, exercise by exercise, from all 127.
Coaching
It watches for plateaus, overtraining and burnout risk rather than waiting to be asked, and raises them with a specific change to make. When you do ask, it answers with your own history open in front of it.
Nutrition
Log a meal by photo, barcode, search or description. Your maintenance comes from your own intake and weight trend rather than a height-and-weight formula, and your macros are rebuilt from it weekly.
The part nobody else will show you
Every coaching app claims to learn about you. This one has a screen where you can read exactly what it concluded — and how far along it is.
Input and consequence
Nothing you enter is merely recorded. Each thing you track moves a number the app gives back to you.
In the app
Start from a proven split or let the app generate one for your goals, equipment and available days. Either way it moves with you afterwards.
Consistent sessions earn more volume. A run of missed reps or a poor recovery week pulls it back before the stall, not after.
Ask why a target moved or what to do about a stuck lift. It answers from your actual history — sessions, meals, weight, check-ins.
Photograph the plate, scan a barcode, search the database, or just describe it. Whichever is fastest at the table.
Trend weight, rate of change, adherence and progress photos, reviewed on a schedule so changes happen on evidence rather than impatience.
Streaks, levels and milestones across training and nutrition — because none of the measurement works unless the logging keeps happening.
Where the numbers come from
There's a Citations screen listing the sources behind your numbers — the Mifflin-St Jeor and Müller equations for basal rate, the activity multipliers, and the protein, fat and carbohydrate guidance the targets are built on. You can check the app's reasoning against the literature it came from.
Mifflin-St Jeor and Müller for basal rate, with the activity multipliers and macro guidance listed alongside them.
Every estimate says how much of your data is behind it, and leans on the formula until there's enough to replace it.
Automatic adjustments can be turned off entirely. The app will still show you what it would have done.
Pricing
No tiers to compare, nothing held back behind a higher plan.