Trainer app comparisons, body composition guides, free calculators, and research. All in one place.
Comparison
Six platforms ranked by features, pricing, and client results tools. FitCommit, HubFit, TrueCoach, My PT Hub, Everfit, and ABC Trainerize compared side by side.
Read the comparison →Comparison
Looking to switch from ABC Trainerize? HubFit, TrueCoach, My PT Hub, Everfit, and FitCommit compared on features and pricing at every client volume.
See alternatives →FitCommit
Free trainer dashboard in beta preview. AI body scans, macro targets, and transformation projections for every client. Free for trainers and clients now.
Learn more →Comparison
How FitCommit compares to MyFitnessPal, Noom, LoseIt, and other calorie trackers on features that actually change results.
See comparison →Body Composition
Visual reference for body fat percentages from 5% to 40% for men and women. See what each level looks like.
130+ pages →Body Composition
Complete guide to cutting phases with 6 deficit levels. Timelines, calorie targets, and muscle preservation.
Cutting phases →Tool
Surplus calorie targets, macro splits, and weekly muscle gain projections.
Calculator →Tool
Plan meal timing around training, eating windows, and macro targets.
Calculator →Nutrition Support
Source-checked protein, lean-mass, and calorie planning guides for people whose appetite is suppressed.
Guide collection →Prescription Math
Concentration, volume, and syringe-unit arithmetic using values already supplied on a prescription and vial.
Guide and calculator →Body Composition
Building muscle and losing fat at the same time. Strategies, calorie targets, and protein needs by body fat level.
21 pages →Estimate body fat using the Navy method. Get body fat %, lean mass, BMR, TDEE, and macro targets.
Use tool →Your Total Daily Energy Expenditure at 5 activity levels. Includes calorie targets for any goal.
Use tool →Daily protein, fat, and carb targets for cutting, maintaining, or bulking. Per-meal breakdowns included.
Use tool →How many calories to eat to lose weight. Get your weekly loss rate, timeline, and target date.
Use tool →Calculate your BMI and see what it means with context about limitations and body composition.
Use tool →Calculate concentration, dose volume, and syringe units from your own prescription and vial values. No dosing advice.
Use tool →ACE body fat classification chart for men and women. Healthy ranges, health risks, and visual reference.
Use tool →AI & Technology
Photo-based body-composition tools can be useful for tracking trends, but an app estimate is not a clinical measurement. Learn what the research can and cannot establish.
Read →All Topics
Nutrition, body composition, weight loss, training, and AI fitness technology. All articles written with sources and reviewed for accuracy.
Read →Every calculator on this page estimates. FitCommit uses your phone camera to measure actual body composition: body fat percentage, lean mass, and a transformation projection at 3, 6, and 12 months. Free trial.
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