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.
Try #1 now: tell it what you ate. Continue with Google or email; no card.
| Tracker | How you log | Log from ChatGPT/Claude | Photo logging | Free tier | Web diary | Price |
|---|---|---|---|---|---|---|
| 1. ForkmateThat’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 | 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 | 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 | 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 | 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! | 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 | 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 | 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 | 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 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 in about a minute.
Log a banana and a Greek yogurt for breakfast
Logged breakfast: a banana and a Greek yogurt, 205 kcal.
- 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.
| Fact | Forkmate | MyFitnessPal | Cronometer | Lose It! | MacroFactor | Cal AI |
|---|---|---|---|---|---|---|
| Price | Free. There is no paid planForkmate FAQ · Checked | Premium $19.99/mo or $79.99/yr; Premium+ $24.99/mo or $99.99/yrMyFitnessPal Premium · Checked | Gold $10.99/mo or $59.99/yrCronometer Gold · Checked | Premium $79.99/yr; Lifetime $299.99Lose It! help: tiers and pricing · Checked | $11.99/mo, $47.99 per 6 months or $71.99/yrMacroFactor · Checked | 3-day trial; no price published on its sitecalai.app · Checked |
| Ads | No adsForkmate pledge · Checked | Ads on the free tierMFP help: Free, Premium and Premium+ · Checked | Ads on the free tier (no ads is a Gold feature)Cronometer help: subscription types · Checked | Ads on the free tier; a one-time fee removes themLose It! help: ad-free version · Checked | No ads; no free tier (7-day trial)MacroFactor · Checked | Not statedCal AI on the App Store · Checked |
| Where it runs | Web app on any phone or computer; adds to your home screen. No app-store appInstall Forkmate · Checked | iOS, Android and a web appMFP help: the free version · Checked | iOS, Android and a web appCronometer help: subscription types · Checked | iOS, Android and a web appLose It! help: logging food · Checked | iOS and Android; no web app yetMacroFactor · Checked | iOS and Android; no web app foundCal AI FAQ · Checked |
| Log from ChatGPT or Claude | Yes: Claude, Cursor and any MCP client; ChatGPT where your plan allows custom connectorsConnect your AI · Checked | A ChatGPT app for recipes and targets; it doesn’t log mealsMyFitnessPal blog, 2026-01-07 · Checked | None found on its site or help centreCronometer Gold · Checked | None found on its help centreLose It! help: tiers and pricing · Checked | None found on its siteMacroFactor · Checked | None found on its sitecalai.app · Checked |
| Photo logging | Through your AI assistant, saved as an estimate. No in-app photo reading yetForkmate home FAQ · Checked | Meal Scan, Premium only, in the phone appsMFP help: Meal Scanner · Checked | Photo Log, Gold onlyCronometer help: photo logging · Checked | Snap It, Premium onlyLose It! help: Snap It · Checked | Yes, in the subscriptionMacroFactor · Checked | Yes, its core feature; results need a subscriptionCal AI on the App Store · Checked |
| Barcode scanning | Free: scan in the web app or type the numberForkmate FAQ · Checked | Premium onlyMFP help: Barcode Scanner · Checked | FreeCronometer Gold · Checked | Premium; some free members keep it during the switchLose It! help: barcode scanner · Checked | Yes, in the subscriptionMacroFactor · Checked | Yes; which tier is not statedcalai.app · Checked |
| Import MyFitnessPal history | Free: drop in MyFitnessPal’s export, kept as you logged itSwitch from MyFitnessPal · Checked | Not applicableMyFitnessPal · Checked | No importer documentedCronometer blog: MyFitnessPal to Cronometer · Checked | No: its help centre says importing isn’t possibleLose It! help: download your data · Checked | No direct import; 30 days of daily totals via Apple Health or Google FitMacroFactor · Checked | Not yet, by its own FAQCal AI FAQ · Checked |
| Export your data | Free, any time: your whole diary from SettingsForkmate pledge · Checked | CSV export on Premium; free accounts get a printable reportMFP help: export your data · Checked | Free CSV export of all your dataCronometer help: account settings · Checked | Yes, from loseit.com; tier not statedLose It! help: download your data · Checked | Yes, a spreadsheet exportMacroFactor help: export your data · Checked | PDF export; which tier is not statedCal AI FAQ · Checked |
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 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.
vs MyFitnessPal
The hated-but-huge incumbent — and how to bring your history with you.
vs Cronometer
The micronutrient deep-diver — grounded data, meet effortless logging.
vs Cal AI
The viral photo app that’s now part of MyFitnessPal.
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.
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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.