Cronometer vs. Lose It! vs. FatSecret vs. Free Calorie Calculator
- Cronometer: best food database accuracy and micronutrient tracking; generous free tier
- Lose It!: simplest UI; good for casual users; Premium locks meaningful features
- FatSecret: large community, free ad-supported, solid for basic logging
- For TDEE and deficit math alone, a free browser calculator skips the app entirely
Table of Contents
Cronometer, Lose It!, and FatSecret are the big three free calorie trackers after MyFitnessPal's Premium turn. Each has strengths. None of them need to be your starting point if you just want a calorie target — the free calorie calculator gives you the TDEE and deficit math in 15 seconds without any account. Here's an honest comparison of when each tracker earns its place in your workflow.
Quick Comparison
| Feature | Cronometer | Lose It! | FatSecret | WildandFree |
|---|---|---|---|---|
| TDEE calculation | Yes | Yes | Yes | Yes |
| Food database size | ~300K curated | ~9M crowdsourced | ~6M crowdsourced | N/A (calc only) |
| Micronutrients tracked | 82 on free tier | Premium only | Limited | No |
| Barcode scanner | Yes | Yes (limited free) | Yes | No |
| Account required | Yes | Yes | Yes | No |
| Ads on free tier | No | Yes | Yes | No |
| Best for | Data nerds, health-first | Casual, mobile-first | Budget, community | Just the math |
Cronometer — The Accuracy Pick
Cronometer's food database is curated by staff, not crowdsourced. That means entries are much more accurate on average than MyFitnessPal or FatSecret — no "homemade pizza: 4 calories" type errors. The tradeoff is coverage: ~300K foods vs. millions. You'll occasionally need to build custom foods for niche items.
Unique strength: 82 micronutrients tracked on the free tier. If you care about vitamin D, B12, omega-3 ratios, or magnesium, Cronometer is unmatched among free tools.
Best for: People who want accurate data over convenience. Health-focused users. Anyone with diet-related medical conditions.
Weakness: Slightly steeper learning curve. UI isn't as polished as Lose It!.
Sell Custom Apparel — We Handle Printing & Free ShippingLose It! — The Casual Pick
Lose It! has the cleanest mobile UI of the free trackers. Daily logging feels closer to a social app than a medical tool. The food database is crowdsourced (accuracy varies), but large.
Unique strength: Snap It (photo-based food logging) works surprisingly well for common meals. Makes daily tracking feel less like work.
Best for: Casual users who want to log quickly without thinking. People who've bounced off MyFitnessPal's complexity.
Weakness: Premium ($40/year) locks macros customization, meal planning, and some features casual users expect to be free.
FatSecret — The Budget Pick
FatSecret is the most "fully free" of the major trackers — ad-supported but without aggressive Premium upsells. Large crowdsourced database, active community, integration with some health platforms.
Unique strength: Active user community for recipe sharing and accountability. Solid for people who like social features.
Best for: Users on a tight budget who want full features without paying. Good for regional/international food coverage in Europe and Asia.
Weakness: Ads are intrusive on mobile. Database accuracy varies (crowdsourced). UI feels dated compared to Lose It!.
When to Skip the Apps Entirely
Daily food tracking is valuable for 2–3 weeks at the start of a weight-loss program. Past that, many people hit "tracker fatigue" and abandon the app without sustaining the habits.
A lighter workflow:
- Calculate TDEE once with the free calculator.
- Track for 2–3 weeks with any app (Cronometer, Lose It!, FatSecret) to learn portion sizes and hidden calories in your usual foods.
- After the tracking block, stop logging daily. Use "portion intuition" for most meals and log only ~1x/week as a check.
- Re-calculate TDEE every 10–15 lb of weight change.
This combines the accuracy of tracking with the sustainability of not tracking forever. Many long-term successful dieters do exactly this.
Related: MyFitnessPal alternatives, Noom alternatives.
Skip the App for the Math
Get TDEE and deficit in 15 seconds — then pick any tracker (or none) for daily logging.
Open Free Calorie CalculatorFrequently Asked Questions
Which free calorie tracker is most accurate?
Cronometer, by a clear margin. Its curated database has fewer "junk" entries than crowdsourced trackers. Pair it with a free TDEE calculator for the full workflow.
Is Lose It! really free?
The basic version is free with ads. Premium features (custom macros, meal planning, premium recipes) require a $40/year subscription.
Does FatSecret have a web version?
Yes — fatsecret.com works on desktop and mobile browsers. The mobile app is stronger, but the web version handles everything.
Can I switch between trackers without losing data?
Most trackers support CSV export of your food diary. Import quality varies — expect some manual cleanup if you switch. If you're data-sensitive, pick one and stick with it.
Do I need to track forever?
No. Most successful long-term dieters track heavily for a few months to build portion intuition, then log only occasionally. The habits and calorie target you build in the tracking phase are what sustain results.
