Cronometer Review (2026): The Accuracy-First Calorie Tracker

What Cronometer Actually Does in 2026

Cronometer is a precision-focused calorie tracker built around three differentiators: a verified-by-default food database, full micronutrient tracking (80+ nutrients per food including B-vitamins, minerals, omega-3s, amino acids), and biometric/lab data integration.

The food database is anchored to four high-trust sources — USDA FoodData Central, the Nutrition Coordinating Center Food and Nutrient Database (NCCDB), the Canadian Nutrient File, and direct manufacturer label data. User submissions exist but are quarantined as a separate, opt-in tier. This is structurally different from MyFitnessPal’s “huge crowdsourced pool with a verified-entry filter” model.

For accuracy-focused use — quantified-self tracking, micronutrient debugging, dietitian-supervised logging — this is the standard recommendation.

How We Scored It

Criterion	Weight	Sub-score
Accuracy & Database	25%	95/100
Logging Ease	20%	82/100
AI Photo Recognition	15%	62/100
Macro & Goal Tracking	15%	96/100
Insights & Reports	10%	92/100
Value & Price	10%	88/100
Privacy & Transparency	5%	88/100

Overall: 86/100

Accuracy and Database

Cronometer’s database is the single strongest in the consumer category. Every entry has a provenance tag — USDA, NCCDB, manufacturer label, or user-submitted — visible in the food detail view. The default search excludes user-submitted entries unless you opt in, removing the per-entry noise that compounds across a day of logging.

For users who care about micronutrients specifically — iron, B12, omega-3 ratio, choline — Cronometer is in a separate category. No other consumer tracker reports more than a handful of micros.

Logging Workflow and Speed

Search is fast and the recent-meals shortcut works well, but Cronometer is not the absolute fastest tracker on the market. Lose It! and MyFitnessPal feel snappier in a one-tap re-log workflow. Barcode scanning is solid. Photo-AI exists but is secondary; for camera-first capture, Nutrola and Cal AI are better-fit.

Pricing and Free Tier

Cronometer’s free tier is unusually generous: full calorie and macro tracking, barcode scanning, basic micronutrient tracking, and the diary are all free. Gold at $54.99/year adds custom biometric tracking, multi-nutrient trend charts, recipe nutrient breakdowns, and ad removal on web. There is no rolling monthly tax — annual or nothing — which keeps long-term cost low.

Who Should Use Cronometer

Cronometer is the right pick if accuracy and micronutrient depth matter to you, if you cook most of your meals and want verified per-ingredient data, if you are working with a registered dietitian, or if you are running a deliberate micronutrient experiment (low-iron debugging, B12 supplementation tracking, omega-3 ratio targeting).

Who Should Skip It

Skip Cronometer if camera-first photo logging is your primary capture mode, if you live inside US chain restaurants and need MyFitnessPal-level database breadth for those, or if the micronutrient panel feels like clutter rather than signal — Lose It! is a cleaner first tracker for casual weight loss.

---

Last reviewed: 2026-05-17. Score is an architectural estimate computed from the published rubric; field-test MAPE publishes with the first benchmark batch alongside the raw CSV. See our methodology and no-affiliate disclosure. Spot an error? Email editors@calorierankings.com per our corrections policy.