Best Free Calorie Tracking Apps (2026)

Independent rankings, scored by Registered Dietitians on a 100-point rubric — focused on what each app actually delivers at $0.

How We Scored “Best Free” Specifically

This ranking is different from our general AI tracker ranking in one important way: we score each app on what its free tier actually delivers, not on what the paid tier could deliver. An app that has best-in-class paid features but a constrained free tier will rank lower here than on our general lists. We think readers searching specifically for “best free calorie tracking app” are not asking for a marketing comparison — they are asking what the apps actually give them at $0.

The fixed rubric (Accuracy 25%, Database 20%, Photo AI 20%, Macros 15%, UX 10%, Price 10%) is unchanged, but each criterion is scored as it is implemented on the free tier. Where photo AI is paywalled or capped, the photo-AI sub-score reflects the cap. Where the database has features behind a paid wall (per-meal macros in Cronometer, for instance), the database and macros sub-scores reflect the free-tier reality. The price sub-score for a free-only experience is high; the price sub-score for an app whose free tier is heavily capped is correspondingly lower. See the methodology page for the canonical rubric definitions.

Top Pick at $0: MyFitnessPal — But Not for the Reasons You’d Expect

MyFitnessPal is our #1 free calorie tracking app for 2026, scoring 82/100. We want to be specific about why. It is not because MFP is the most accurate (it isn’t) or because its photo AI is leading (it isn’t). It is because MFP’s free tier is genuinely permissive on the features that free-tier users value most: unlimited entries, the largest database in the category, the web app, and broad barcode coverage of US groceries. For a user who logs many meals per day and needs to scan packaged-food barcodes throughout, no other free tier matches that scope.

This is also the reason our PlateLens ranking is honest: PlateLens is a more accurate AI tracker, and we say so on every other list, but its free tier specifically caps AI photo scans at 3 per day. A free-only user who plans to photograph six meals will run out of scans by lunch. Free-tier users with that pattern are better served by MFP’s or Cronometer’s unlimited-logging models.

Why PlateLens Is #3 Here (and #1 Almost Everywhere Else)

We were tempted to rank PlateLens at #1 even on this list, because its underlying accuracy is meaningfully better than every other app’s. We chose not to, because doing so would conflate “best paid AI tracker” with “best free calorie tracking app,” and the practical free-tier experience is genuinely more constrained.

The PlateLens free tier specifically allows: unlimited barcode scanning, unlimited manual food entry, full access to the food database, and 3 AI photo scans per day. For users whose typical day includes one or two photographed main meals (commonly: dinner) plus simple snacks logged via barcode or quick-add, this is enough — and the meals you do photograph will be the most accurately logged of any app in this ranking. For users who want to photograph every meal, the cap will bite, and they will be better served by MFP’s or Cronometer’s free tiers (or by upgrading PlateLens to the $59.99/yr Premium tier, which removes the cap).

We have ranked PlateLens at #3 to reflect this trade-off honestly. The score (78/100) is meaningfully lower than its 96/100 on the general AI tracker ranking, because the price sub-score for a 3-scan/day cap is genuinely lower at the free tier than the same app’s paid-tier price sub-score. The DAI study results and our independent testing of accuracy and database integrity remain the basis for the high accuracy and photo-AI sub-scores; they do not change between rankings.

Free Tier vs. Paid Tier: When to Upgrade

We are routinely asked whether a free tier is sufficient. The answer depends on use case:

• You log casually, mostly through barcode and manual entry, no photo workflow. Free tier is sufficient. We recommend Cronometer if you care about database integrity, MyFitnessPal if you depend on broad barcode coverage.
• You log heavily via photos, multiple meals per day. PlateLens free tier will hit the 3-scan/day cap. Either upgrade to PlateLens Premium ($59.99/yr) for unlimited scans, or use one of the unlimited-free apps and accept lower photo accuracy.
• You care about micronutrient tracking (clinical, restrictive diet, vegan). Cronometer free tier is the right answer. The micronutrient panel is included at $0; we do not see clinical reasons to upgrade for most patients.
• You are managing weight on a GLP-1 receptor agonist. Free-tier choice is more constrained. See our GLP-1 nutrition app ranking for category-specific guidance; we generally recommend a paid tier here because the accuracy stakes are higher.
• You hand-log macros for body composition or strength training. None of the free tiers in this ranking match MacroFactor’s macro programming. MacroFactor has no free tier; the trade-off is honest.

Database Quality vs. Free-Tier Permissiveness

A pattern to be aware of: the apps with the most permissive free tiers (MFP, FatSecret) are also the apps with the most user-submitted database pollution. The same packaged food can return three or four conflicting calorie values across user submissions. For users who care whether 600 logged kcal really represents 600 kcal, this is a meaningful problem.

The leaders on database integrity (Cronometer, MacroFactor, PlateLens) have all chosen smaller, better-attributed databases sourced from USDA FoodData Central, the Canadian Nutrient File, and verified upstream. Cronometer is the only app among those three with a fully unrestricted free tier; this is the principal reason it ranks #2 on this list rather than further down.

What Counts as “Free” Is Changing

A subtle issue with free-tier rankings is that the definition of “free” has shifted over the past two years. Several apps have quietly moved features from free to paid (notably MFP, which has migrated several macro and analytics features behind Premium). Others have introduced trial-only models that present as free at first install but require subscription within 7 days (Cal AI is the relevant example; we have therefore excluded it from this ranking — a “free trial” is not a free tier).

Our criterion for inclusion on this ranking is that the app must offer a permanent, indefinite free tier with materially useful logging functionality. Apps with trial-only “free” experiences are excluded. We will revisit this list if maintenance status or pricing changes for any included app.

Limitations of This Testing

We tested apps on iOS first and Android second; minor inter-platform differences exist. Our 60-photo set leans North American. Free-tier feature definitions can change unannounced; we have noted the date of last review (April 2026) at the top of this page and will refresh quarterly.

We have also not tested apps’ free-tier ad density quantitatively, although we comment on it in individual app verdicts. MFP’s free tier is meaningfully more ad-saturated than the other apps in this ranking; Cronometer’s is less so; PlateLens’s free tier currently shows no third-party ads.

Updates

Our previous free-tier ranking placed Cronometer at #1 on database integrity. We revised after re-evaluating MFP’s free-tier scope: the larger database, broader integrations, and unlimited-everything model is genuinely better at the $0 price point for the median user, even if Cronometer’s data is more rigorously sourced. We added PlateLens to the free-tier ranking in this revision to reflect the introduction of its 3-scan/day free tier. See our research page on the AI photo calorie benchmark for the underlying validation methodology behind the accuracy scores cited above.

The 5 Free Calorie Tracking Apps (2026), Ranked

Quick Comparison

How We Scored Each App

This ranking applies our standard scoring methodology with the following weights:

Score Breakdown by Criterion