Sarah Chen, MS, CSCS
Exercise Science Reviewer
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Sarah Chen, MS, CSCS
Exercise Science Reviewer
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Published: February 2, 2026 • 12 min read
Our TDEE Calculator gives you a science-based estimate of your daily calorie needs. But to actually hit that target, you need a reliable way to track what you eat. The right app makes the difference between guessing and knowing your actual intake.
These calculators give you targets you can track directly inside your app.
While calories determine weight loss/gain, macros determine body composition:
A good tracking app helps you hit both your calorie target AND your macro ratios.
MyFitnessPal has the largest food database in the world with over 14 million foods. The barcode scanner makes logging packaged foods instant, and the recipe importer can pull nutrition from any URL.
Pair with our TDEE Calculator - enter your calculated TDEE as your goal in MyFitnessPal, then track daily to ensure you're hitting your target.
Pros: Largest database, excellent barcode scanner, massive integration ecosystem
Cons: User-submitted entries can be inaccurate, many features require premium
Cronometer uses a curated, verified database rather than user-submitted entries. It tracks 82+ nutrients including micronutrients, making it the choice for health-focused users who want to ensure they're getting complete nutrition.
Perfect for users of our Calorie Deficit Calculator who want to ensure they're meeting nutritional needs while in a deficit. The micronutrient tracking helps prevent deficiencies.
Pros: Most accurate database, comprehensive micronutrient tracking, no ads
Cons: Smaller database than MFP, less social features, learning curve
Created by the team at Stronger By Science, MacroFactor is unique because it continuously calculates your actual TDEE based on your logged food and weight changes. It's like having our TDEE Calculator built into your tracking app.
MacroFactor essentially replaces our TDEE calculator with real-time data. Use our calculator to get a starting point, then let MacroFactor refine it based on your actual results.
Pros: Adaptive TDEE is revolutionary, science-backed approach, no diet culture guilt
Cons: Smaller database, requires consistent logging for adaptation, no free tier
Lose It! offers the best free calorie tracking experience. The "Snap It" feature uses AI to identify foods from photos, making logging faster than typing. The free tier includes everything most people need.
Great starter app for users of our BMI Calculator who are just beginning their weight loss journey. The simple interface reduces friction.
Pros: Best free tier, photo recognition, simple interface, good community
Cons: Database accuracy varies, less detailed than competitors, macro tracking limited on free tier
| App | Price | Database | Unique Feature | Best For |
|---|---|---|---|---|
| MyFitnessPal | $79.99/yr | 14M+ foods | Barcode scanner | Most users |
| Cronometer | $49.99/yr | Verified only | 82+ nutrients | Health-focused |
| MacroFactor | $71.99/yr | 26.5K verified | Adaptive TDEE | Data lovers |
| Lose It! | Free/$39.99 | Large | Photo logging | Beginners |