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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 →Body Composition
Bulking phases with 3 surplus levels. Timelines, calorie targets, and muscle gain strategies.
Bulking phases →Weight Loss
How long it takes to lose 5, 10, 20, or 50 pounds. Realistic timelines with week-by-week projections.
30+ pages →Nutrition
Complete guide to IF protocols: 16:8, 18:6, OMAD. Benefits, risks, and what the research actually shows.
IF protocols →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 →ACE body fat classification chart for men and women. Healthy ranges, health risks, and visual reference.
Use tool →AI & Technology
AI scans have a 2-4% margin of error, comparable to calipers and bioimpedance. How they stack up against DEXA, what affects accuracy, and when to use each method.
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 7-day trial.
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