> The 9 best AI calorie trackers in 2026, compared: which log from ChatGPT or Claude, which do photos, what's free, and what each costs. Checked Sept 2026. Source: https://forkmate.ai/best-ai-calorie-tracker/ Last checked September 30, 2026 # The 9 best AI calorie trackers in 2026, honestly compared The database giants, the photo-scan apps, the trackers that live in your chat, and Forkmate. We make Forkmate, so yes, it's first on our list; every entry, ours included, says who it suits and when to skip it. [Start free](https://app.forkmate.ai/) Try #1 now: tell it what you ate. Continue with Google or email; no card. AI calorie trackers compared by how you log, logging from ChatGPT or Claude, photo logging, free tier, web diary and price | Tracker | How you log | Log from ChatGPT/Claude | Photo logging | Free tier | Web diary | Price | | --- | --- | --- | --- | --- | --- | --- | | [1. Forkmate](#forkmate) That’s us | Type a sentence in the web app, scan a barcode, or tell your AI assistant | Yes: Claude, Cursor and any MCP client; ChatGPT where your plan allows custom connectors | Through your AI assistant (saved as an estimate); no in-app photo upload | Everything is free: no card, no ads, no paid tier | Yes | Free | | [2. Cronometer](#cronometer) | Database search and barcode; Photo Log and Voice Log on Gold | No official integration | Gold only | Free tier, including barcode scanning | Yes | Gold $10.99/mo or $59.99/yr | | [3. MyFitnessPal](#myfitnesspal) | Database search; barcode, Meal Scan (photo) and Voice Log are Premium | Has a ChatGPT app for recipes and calorie targets; it does not log meals | Meal Scan, Premium only | Free tier with ads; barcode scanning is Premium | Yes | Premium $19.99/mo or $79.99/yr; Premium+ $24.99/mo or $99.99/yr | | [4. MacroFactor](#macrofactor) | Database search, barcode and photo logging, in its phone apps | No official integration | Yes, included in the subscription | No free tier; 7-day trial | No | $11.99/mo, $47.99 per 6 months, or $71.99/yr | | [5. Nutrition MCP](#nutrition-mcp) | Chat with Claude or ChatGPT: text, photos, barcodes, screenshots | Yes: Claude (web, desktop, mobile) and ChatGPT (web) | Yes, through your AI assistant, free | Free and open source (MIT); hosted or self-hosted | No | Free | | [6. Lose It!](#lose-it) | Database search; Snap It (photo) and voice logging on Premium; barcode is Premium, with some free members keeping it during the switch | No official integration | Snap It, Premium only | Free tier with ads; a one-time purchase removes them | Yes | Premium $79.99/yr; Lifetime $299.99 | | [7. PlateLens](#platelens) | Photo scan, in its phone apps | Official MCP server is read-only: it can't log a meal | Free plan has a daily allowance; unlimited on Premium | Free plan that doesn't expire | Not verified | Premium $9.99/mo or $34.99/yr | | [8. Cal AI](#cal-ai) | Photo scan, barcode and label scan, voice or text, manual entry | None found | Yes, its core feature | 3-day trial; scan results need a subscription. MyFitnessPal announced its acquisition on March 2, 2026 | No | Paid subscription; no price published on its site | | [9. Nutrola](#nutrola) | AI photo logging, in its phone apps | None found | Yes | No free tier, by its own account | No | From €2.50/mo (no US-dollar price published) | Every competitor row was checked September 30, 2026 against that vendor’s own website (US prices unless shown otherwise). “Checked” means we read their pricing and help pages; we did not run our own accuracy test of each app. Where a vendor publishes nothing on a point, the cell says “none found” or “not verified” rather than guessing. Capabilities vary by plan, platform and country, and change often. ## 1. Forkmate: best free AI tracker you log by talking to Forkmate is a free [AI calorie tracker](https://forkmate.ai/) you talk to: type what you ate in the web app, or tell Claude or ChatGPT, and it lands in one calorie and macro diary. [Connect your AI](https://forkmate.ai/connect/) in about a minute. Your AI assistant · Forkmate connected Log a banana and a Greek yogurt for breakfast Logged breakfast: a banana and a Greek yogurt, 205 kcal. [Start free](https://app.forkmate.ai/) Free, no card, no ads. How you log Type a sentence in the web app, scan a barcode, or tell your AI assistant From ChatGPT/Claude Yes: Claude, Cursor and any MCP client; ChatGPT where your plan allows custom connectors Photo logging Through your AI assistant (saved as an estimate); no in-app photo upload Free tier Everything is free: no card, no ads, no paid tier Price Free Accuracy Every food names its source: USDA, Open Food Facts, a restaurant's published figures, or an AI estimate, labelled as one Skip it if you want an app-store app that scans photos in-app, micronutrient detail, or an adaptive TDEE algorithm ## 2. Cronometer: best for micronutrient detail How you log Database search and barcode; Photo Log and Voice Log on Gold From ChatGPT/Claude No official integration Photo logging Gold only Free tier Free tier, including barcode scanning Price Gold $10.99/mo or $59.99/yr Accuracy Deep, lab-sourced micronutrient data with a visible source on every food Skip it if you want photo or voice logging for free, or to log from ChatGPT or Claude ## 3. MyFitnessPal: biggest food database How you log Database search; barcode, Meal Scan (photo) and Voice Log are Premium From ChatGPT/Claude Has a ChatGPT app for recipes and calorie targets; it does not log meals Photo logging Meal Scan, Premium only Free tier Free tier with ads; barcode scanning is Premium Price Premium $19.99/mo or $79.99/yr; Premium+ $24.99/mo or $99.99/yr Accuracy Huge community-maintained database; quality varies by entry Skip it if you want barcode or photo logging without paying, or no ads ## 4. MacroFactor: best adaptive calorie coaching How you log Database search, barcode and photo logging, in its phone apps From ChatGPT/Claude No official integration Photo logging Yes, included in the subscription Free tier No free tier; 7-day trial Price $11.99/mo, $47.99 per 6 months, or $71.99/yr Accuracy Its algorithm adapts your calorie target to your logged intake and weight trend Skip it if you want a free tracker or a web diary (its site says a desktop version is planned) ## 5. Nutrition MCP: best open-source option that lives in your chat How you log Chat with Claude or ChatGPT: text, photos, barcodes, screenshots From ChatGPT/Claude Yes: Claude (web, desktop, mobile) and ChatGPT (web) Photo logging Yes, through your AI assistant, free Free tier Free and open source (MIT); hosted or self-hosted Price Free Accuracy Your assistant estimates; barcodes resolve via Open Food Facts Skip it if you want a diary you can open outside the chat ## 6. Lose It!: a simple calorie budget, with AI logging on Premium How you log Database search; Snap It (photo) and voice logging on Premium; barcode is Premium, with some free members keeping it during the switch From ChatGPT/Claude No official integration Photo logging Snap It, Premium only Free tier Free tier with ads; a one-time purchase removes them Price Premium $79.99/yr; Lifetime $299.99 Accuracy Photo logging estimates; database entries otherwise Skip it if you want photo, voice or (soon) barcode logging free, or to import your MyFitnessPal history (its help centre says importing isn’t possible) ## 7. PlateLens: photo scanning with a free daily allowance How you log Photo scan, in its phone apps From ChatGPT/Claude Official MCP server is read-only: it can't log a meal Photo logging Free plan has a daily allowance; unlimited on Premium Free tier Free plan that doesn't expire Price Premium $9.99/mo or $34.99/yr Accuracy Publishes its own accuracy claims (self-reported, not independently verified) Skip it if you want your AI assistant to log for you ## 8. Cal AI: best-known photo-first app How you log Photo scan, barcode and label scan, voice or text, manual entry From ChatGPT/Claude None found Photo logging Yes, its core feature Free tier 3-day trial; scan results need a subscription. MyFitnessPal announced its acquisition on March 2, 2026 Price Paid subscription; no price published on its site Accuracy Photo estimation; Cal AI itself says “about 80% accurate” (its own claim) Skip it if you want a free tracker, a web diary, or numbers traced to a named database ## 9. Nutrola: low-cost photo logging How you log AI photo logging, in its phone apps From ChatGPT/Claude None found Photo logging Yes Free tier No free tier, by its own account Price From €2.50/mo (no US-dollar price published) Accuracy Photo estimation; see the accuracy note below Skip it if you want a free tier or a web diary ## The facts, side by side Price, ads, platforms and the features people switch for, for the six trackers people compare most. Each cell names its source and when it was checked. Six calorie trackers, fact by fact | Fact | Forkmate | [MyFitnessPal](https://forkmate.ai/vs/myfitnesspal/) | [Cronometer](https://forkmate.ai/vs/cronometer/) | Lose It! | MacroFactor | [Cal AI](https://forkmate.ai/vs/cal-ai/) | | --- | --- | --- | --- | --- | --- | --- | | Price | Free. There is no paid plan [Forkmate FAQ](https://forkmate.ai/faq/) · Checked October 8, 2026 | Premium $19.99/mo or $79.99/yr; Premium+ $24.99/mo or $99.99/yr [MyFitnessPal Premium](https://www.myfitnesspal.com/premium) · Checked October 8, 2026 | Gold $10.99/mo or $59.99/yr [Cronometer Gold](https://cronometer.com/gold/) · Checked October 8, 2026 | Premium $79.99/yr; Lifetime $299.99 [Lose It! help: tiers and pricing](https://loseit.zendesk.com/hc/en-us/articles/51906561286804) · Checked October 8, 2026 | $11.99/mo, $47.99 per 6 months or $71.99/yr [MacroFactor](https://macrofactor.com/macrofactor/) · Checked October 8, 2026 | 3-day trial; no price published on its site [calai.app](https://www.calai.app/) · Checked October 8, 2026 | | Ads | No ads [Forkmate pledge](https://forkmate.ai/pledge/) · Checked October 8, 2026 | Ads on the free tier [MFP help: Free, Premium and Premium+](https://support.myfitnesspal.com/hc/en-us/articles/34889191368077) · Checked October 8, 2026 | Ads on the free tier (no ads is a Gold feature) [Cronometer help: subscription types](https://support.cronometer.com/hc/en-us/articles/360028026971) · Checked October 8, 2026 | Ads on the free tier; a one-time fee removes them [Lose It! help: ad-free version](https://loseit.zendesk.com/hc/en-us/articles/51380378380052) · Checked October 8, 2026 | No ads; no free tier (7-day trial) [MacroFactor](https://macrofactor.com/macrofactor/) · Checked October 8, 2026 | Not stated [Cal AI on the App Store](https://apps.apple.com/us/app/cal-ai-calorie-tracker/id6480417616) · Checked October 8, 2026 | | Where it runs | Web app on any phone or computer; adds to your home screen. No app-store app [Install Forkmate](https://forkmate.ai/install/) · Checked October 8, 2026 | iOS, Android and a web app [MFP help: the free version](https://support.myfitnesspal.com/hc/en-us/articles/15457546881805) · Checked October 8, 2026 | iOS, Android and a web app [Cronometer help: subscription types](https://support.cronometer.com/hc/en-us/articles/360028026971) · Checked October 8, 2026 | iOS, Android and a web app [Lose It! help: logging food](https://loseit.zendesk.com/hc/en-us/articles/49210381551380) · Checked October 8, 2026 | iOS and Android; no web app yet [MacroFactor](https://macrofactor.com/macrofactor/) · Checked October 8, 2026 | iOS and Android; no web app found [Cal AI FAQ](https://www.calai.app/faq) · Checked October 8, 2026 | | Log from ChatGPT or Claude | Yes: Claude, Cursor and any MCP client; ChatGPT where your plan allows custom connectors [Connect your AI](https://forkmate.ai/connect/) · Checked October 8, 2026 | A ChatGPT app for recipes and targets; it doesn’t log meals [MyFitnessPal blog, 2026-01-07](https://blog.myfitnesspal.com/myfitnesspal-chatgpt-your-nutrition-questions-answered-in-seconds/) · Checked October 8, 2026 | None found on its site or help centre [Cronometer Gold](https://cronometer.com/gold/) · Checked October 8, 2026 | None found on its help centre [Lose It! help: tiers and pricing](https://loseit.zendesk.com/hc/en-us/articles/51906561286804) · Checked October 8, 2026 | None found on its site [MacroFactor](https://macrofactor.com/macrofactor/) · Checked October 8, 2026 | None found on its site [calai.app](https://www.calai.app/) · Checked October 8, 2026 | | Photo logging | Through your AI assistant, saved as an estimate. No in-app photo reading yet [Forkmate home FAQ](https://forkmate.ai/#faq) · Checked October 8, 2026 | Meal Scan, Premium only, in the phone apps [MFP help: Meal Scanner](https://support.myfitnesspal.com/hc/en-us/articles/360045761612) · Checked October 8, 2026 | Photo Log, Gold only [Cronometer help: photo logging](https://support.cronometer.com/hc/en-us/articles/39013533811092) · Checked October 8, 2026 | Snap It, Premium only [Lose It! help: Snap It](https://loseit.zendesk.com/hc/en-us/articles/47771695186580) · Checked October 8, 2026 | Yes, in the subscription [MacroFactor](https://macrofactor.com/macrofactor/) · Checked October 8, 2026 | Yes, its core feature; results need a subscription [Cal AI on the App Store](https://apps.apple.com/us/app/cal-ai-calorie-tracker/id6480417616) · Checked October 8, 2026 | | Barcode scanning | Free: scan in the web app or type the number [Forkmate FAQ](https://forkmate.ai/faq/) · Checked October 8, 2026 | Premium only [MFP help: Barcode Scanner](https://support.myfitnesspal.com/hc/en-us/articles/360032624771) · Checked October 8, 2026 | Free [Cronometer Gold](https://cronometer.com/gold/) · Checked October 8, 2026 | Premium; some free members keep it during the switch [Lose It! help: barcode scanner](https://loseit.zendesk.com/hc/en-us/articles/47773984823700) · Checked October 8, 2026 | Yes, in the subscription [MacroFactor](https://macrofactor.com/macrofactor/) · Checked October 8, 2026 | Yes; which tier is not stated [calai.app](https://www.calai.app/) · Checked October 8, 2026 | | Import MyFitnessPal history | Free: drop in MyFitnessPal’s export, kept as you logged it [Switch from MyFitnessPal](https://forkmate.ai/migrate-from-myfitnesspal/) · Checked October 8, 2026 | Not applicable [MyFitnessPal](https://www.myfitnesspal.com/) · Checked October 8, 2026 | No importer documented [Cronometer blog: MyFitnessPal to Cronometer](https://cronometer.com/blog/my-fitness-pal-to-cronometer/) · Checked October 8, 2026 | No: its help centre says importing isn’t possible [Lose It! help: download your data](https://loseit.zendesk.com/hc/en-us/articles/47497914864916) · Checked October 8, 2026 | No direct import; 30 days of daily totals via Apple Health or Google Fit [MacroFactor](https://macrofactor.com/macrofactor/) · Checked October 8, 2026 | Not yet, by its own FAQ [Cal AI FAQ](https://www.calai.app/faq) · Checked October 8, 2026 | | Export your data | Free, any time: your whole diary from Settings [Forkmate pledge](https://forkmate.ai/pledge/) · Checked October 8, 2026 | CSV export on Premium; free accounts get a printable report [MFP help: export your data](https://support.myfitnesspal.com/hc/en-us/articles/360032623371) · Checked October 8, 2026 | Free CSV export of all your data [Cronometer help: account settings](https://support.cronometer.com/hc/en-us/articles/360018760151) · Checked October 8, 2026 | Yes, from loseit.com; tier not stated [Lose It! help: download your data](https://loseit.zendesk.com/hc/en-us/articles/47497914864916) · Checked October 8, 2026 | Yes, a spreadsheet export [MacroFactor help: export your data](https://help.macrofactorapp.com/en/articles/68-export-your-data) · Checked October 8, 2026 | PDF export; which tier is not stated [Cal AI FAQ](https://www.calai.app/faq) · Checked October 8, 2026 | ## A note on “AI accuracy” Some photo-scan apps advertise near-perfect accuracy — figures like “within about 1%.” Those numbers are almost always self-published and aren’t independently verified, so treat them with caution. The [peer-reviewed research](https://forkmate.ai/blog/how-accurate-is-ai-at-counting-calories/) tells a more grounded story: AI and photo-based calorie estimates carry average errors ranging from 0.10% to 38.3%, larger on mixed meals, and portion sizes are underestimated in roughly 76% of photos. That’s not a reason to avoid photo logging — it’s genuinely convenient. It’s the reason Forkmate does it differently: you tell your AI what you ate, and each food shows where its number came from: a named public database like USDA or Open Food Facts, a restaurant’s published figures, or an AI estimate (Forkmate’s or your assistant’s), labelled as one. You always know which kind of figure you’re looking at. ## Go deeper Head-to-head comparisons, and the roundup for MyFitnessPal switchers. [### MyFitnessPal alternatives The free trackers people switch to, and how to bring your history.](https://forkmate.ai/myfitnesspal-alternatives/) [### vs MyFitnessPal The hated-but-huge incumbent — and how to bring your history with you.](https://forkmate.ai/vs/myfitnesspal/) [### vs Cronometer The micronutrient deep-diver — grounded data, meet effortless logging.](https://forkmate.ai/vs/cronometer/) [### vs Cal AI The viral photo app that’s now part of MyFitnessPal.](https://forkmate.ai/vs/cal-ai/) ## Questions people ask **What is the best AI calorie tracker?** It depends on how you want to log. To log by talking to ChatGPT or Claude and keep a real diary, Forkmate is free and works with Claude, Cursor and any MCP client, and with ChatGPT where your plan allows custom connectors; you can also send your assistant a photo of your plate. Nutrition MCP is a free, open-source option that keeps everything inside the chat. If you want an app that scans photos itself, Cal AI, PlateLens, Nutrola and MacroFactor do, and MyFitnessPal and Cronometer offer it on their paid tiers. For the deepest food and micronutrient data, Cronometer and MyFitnessPal lead. Photo estimates carry real error, more of it on mixed meals. **Can ChatGPT or Claude log my calories?** Not into a diary on their own: without a tool connected, an assistant can estimate a meal but keeps no running log. Connect a tracker that can write and it can. Forkmate and Nutrition MCP both log from Claude, and from ChatGPT on plans that allow custom connectors. MyFitnessPal's ChatGPT app gives recipes and calorie targets but does not log meals, and PlateLens's MCP server is read-only. **Are AI photo calorie trackers accurate?** They're convenient but imprecise. Peer-reviewed research reports average calorie errors from 0.10% to 38.3%, with individual items off by as much as 79.6% and larger errors on mixed meals, and portion sizes underestimated in about 76% of photos. Be cautious of any app advertising near-perfect accuracy from a photo; those figures are usually self-published rather than independently verified. Forkmate takes a source-transparency approach instead: every food names the database its numbers came from, or is labelled as an estimate. **Which AI calorie trackers have a web diary?** Forkmate, MyFitnessPal, Cronometer and Lose It! have a diary you can open in a web browser. MacroFactor, Cal AI and Nutrola are phone apps (MacroFactor lists web as planned), and Nutrition MCP keeps everything inside the chat. **Is there a free AI calorie tracker?** Yes. Forkmate is free with no credit card and no ads, and Nutrition MCP is free and open source. MyFitnessPal, Cronometer and Lose It! have free tiers with photo logging reserved for paid plans, and PlateLens has a free plan with a daily photo-scan allowance. MacroFactor, Cal AI and Nutrola have no free tier. ## Log your first meal in a minute. Free, all of it: no card, no ads. Type what you ate in the app, or connect the AI you already use. [Connect your AI](https://forkmate.ai/connect/) [Start free](https://app.forkmate.ai/) MyFitnessPal and the other named trackers are trademarks of their respective owners. Forkmate is an independent product and is not affiliated with, endorsed by, or sponsored by any of them. Comparisons reflect publicly available information believed accurate as of publication and may change.