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Features, pricing and Editor Score side by side — to help you pick the right health & lifestyle tool in 2026.
Quick verdict
On our Editor Score, Cronometer and Lumen land almost level. Pick Cronometer if you want tracking of up to 95 nutrients and compounds; choose Lumen for handheld breath analysis of fat vs carb burning. On pricing, Cronometer is the one with a free or freemium plan, so it's the cheaper place to start.
| Pricing | Freemium | Subscription |
| Free tier | ||
| Best for | tracking of up to 95 nutrients and compounds | handheld breath analysis of fat vs carb burning |
Precise nutrition tracker with AI photo food logging
Metabolism tracker with AI nutrition guidance
Choose Cronometer if…
Choose Lumen if…
Your use case decides this one: Cronometer leans into tracking of up to 95 nutrients and compounds, while Lumen is built for handheld breath analysis of fat vs carb burning. Weigh features and pricing for your workflow. Cronometer is the lower-cost place to start thanks to its free or freemium plan; the other is worth a trial if its feature set fits better.
Neither is universally better — it depends on your budget and which features matter most. The side-by-side breakdown above shows where each one wins.
Cronometer (freemium) is best for tracking of up to 95 nutrients and compounds, while Lumen (subscription) is best for handheld breath analysis of fat vs carb burning. See the full feature and pricing comparison above.
Cronometer has a free or freemium plan, so it's the cheaper way to start. For paid plans, check each tool's current pricing on its review page.
Cronometer is usually the easier starting point thanks to a lower barrier to entry. Beginners should favour a free tier and a simple interface over raw power.
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Last updated August 2026. Comparisons are ranked by our Editor Score (features, value and pricing, blended with verified user reviews where a tool has them) — see our methodology.