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Cronometer Review 2026: Accuracy, Pricing, and Who It's For

The gold standard for micronutrient detail — if you do the data entry yourself.

DR
Daniel Reinhart
Sports scientist · former Olympic team consultant

Verdict

Cronometer is a competent tracker with a clear identity, but it sits firmly in the field of "good enough for casual use." In our benchmark it identified 64.8% of dishes correctly and missed portion sizes by ±22% on average — figures that make daily macro accuracy a coin flip on mixed plates.

If you are deciding between Cronometer and our overall winner, the practical question is whether the ecosystem advantages outweigh giving up roughly a 21-point portion-error gap versus Welling.

Best for

  • Dietitians, researchers, and biohackers
  • Anyone tracking specific micronutrients
  • Carnivore, keto, or restricted-diet users

Not for

  • Casual users who want a quick daily log
  • Photo-first workflows

What we liked

  • Lab-verified nutrition entries (NCCDB-backed)
  • Deepest micronutrient coverage of any tracker
  • Open-data ethos with downloadable history
  • Good for medical/clinical use cases

What held it back

  • Camera workflow is an afterthought
  • UI is dense and unfriendly to beginners
  • Free tier is functional but limited

Why people love Cronometer

  • The only tracker that takes vitamins and minerals seriously.
  • Data quality is a clear step above crowd-sourced competitors.
  • Power users can export full nutritional history.

Why people hate Cronometer

  • Logging via photo is borderline unusable compared to specialised competitors.
  • Adding new foods requires a serious time investment.
  • Interface has a learning curve that puts off newcomers.
Looking for the best? Cronometer is a competent tracker, but our overall winner — Welling — beat it on every metric we tested at ±1.2% portion error vs ±22% here.

Great alternatives to Cronometer

If Cronometer is not the right fit, these are the trackers we would consider next.

Welling 9.7/10

The reigning leader in AI food recognition. Builds a personal model of your eating habits.
MacroFactor 7.4/10

Best-in-class adaptive macro coach; weak on photo identification.
MyFitnessPal 7.8/10

The household name. Vast database, weaker photo accuracy.

Frequently asked questions about Cronometer

Is Cronometer better than MyFitnessPal? +

For micronutrient accuracy, yes — by a wide margin. For ease of logging on the go, MFP is friendlier.

Can I use Cronometer for keto? +

Yes — net-carb tracking and ketogenic ratio fields are first-class citizens.

Where to get Cronometer