Everything Fitness.
One Place.
Advanced fitness tools powered by personalization, body analytics, and intelligent meal planning.
No signup. No credit card. Just results.
Or get Pro for $0.99 your first monthYour results look like this
Here's a preview of what you get — personalized macro targets calculated from your exact body stats.
Your complete macro toolkit
Built for lifters and beginners. No fluff, no BS — just the tools you need to hit your goals.
Results in 60 seconds
Three steps. That's literally it.
Answer a few quick questions
Goal, body stats, activity level, gym frequency — fast and painless. Takes about a minute.
Get instant results
Your personalized calories, protein, carbs, and fat targets — calculated and displayed instantly.
Build your meals
Use the meal builder to create orders at your favorite restaurants that hit your exact macros.
Trusted by lifters everywhere
Real people, real results.
“Finally a macro calculator that doesn't make me create an account just to see my calories. Got my plan in 30 seconds.”
“The fast food meal builder is insane. I eat Chipotle 4x a week and still hit my macros perfectly.”
“Simple, fast, accurate. Used it for my entire 16-week contest prep. The protein targets were spot on.”
MacroStack on your wrist.
Log meals, track water, and hit your macros without ever pulling out your phone. Native Apple Watch app, launching soon.
- One-tap macro logging from your wrist
- Hydration reminders with haptic taps
- Live activity rings synced with workouts
- Custom watch face complications
Why MacroStack?
We cut out everything that wastes your time.
Instant results
No loading screens, no waiting. Your macros are calculated client-side in milliseconds.
No account required
See your full results before we ever ask you to sign up. Most apps gatekeep this.
Science-based formulas
Built on the Mifflin-St Jeor equation — the gold standard for BMR estimation.
Real restaurant meals
Not generic food databases. Actual menu items from chains you already eat at.
Goal-optimized macros
Cutting? More protein. Bulking? More carbs. Your ratios auto-adjust to your goal.
Free to start
Calculator, meal builder, and core trackers are free forever. Pro is there if you want AI coaching and power features — $0.99 your first month, then $7.99/mo. Basics aren't gated.
FAQs
We use the Mifflin-St Jeor equation to estimate your Basal Metabolic Rate (BMR), then multiply by your activity level to get your Total Daily Energy Expenditure (TDEE). Your goal (cut/bulk/maintain) then adjusts the final target.
Ready to dial in your macros?
Join thousands of lifters and beginners who've already calculated their perfect macro split. No signup, no BS.