The best free AI calorie tracker depends on what “free” means to you, because most AI trackers are free to download but charge for photo logging. Of the 8 apps we checked, only SnapCalorie (up to 3 free AI logs a day) and Calo AI (no daily cap, paid for by ads) let you log meals by photo without a subscription or trial.
Disclosure: this page is written by the Calo AI Team, and Calo AI is our app. Every competitor fact comes from the company’s own website, help centre or US app store listing, checked on 16 October 2026. Prices are US App Store prices in US dollars and change often, so treat them as a snapshot.
Which AI calorie trackers are actually free?
Here is what each app’s own pages say about AI photo logging without paying:
| App | Free AI photo logging? | What you get without paying | Paid plan (US App Store) |
|---|---|---|---|
| Calo AI | Yes, no daily cap | Every feature, with ads | Optional Premium removes ads and waiting |
| SnapCalorie | Yes, up to 3 AI logs a day | Core features | Premium, in-app purchases $9.99 to $149.00 |
| Cal AI | No, results need a subscription | 3-day free trial | “Unlimited” items $2.99 to $29.99 |
| MyFitnessPal | No, Meal Scan is Premium | Manual food and exercise logging | Premium items $9.99 to $79.99 |
| Lose It! | No, Snap It is Premium | Calorie budget and food database | Premium $79.99 a year (pricing page) |
| Cronometer | No, Photo Log is Gold | Up to 95 nutrients, barcode scanner | Gold $10.99 a month or $59.99 a year |
| Foodvisor | No, photo analysis is Premium | Manual food diary | In-app purchases $14.99 to $89.99 |
| MacroFactor | No free tier at all | 7-day trial | $11.99 a month or $71.99 a year |
A “free trial” and a “free tier” are very different things. A trial ends and usually renews into a paid plan automatically. A free tier keeps working. If you want to keep logging by photo for months without paying, only the first two rows qualify.
Is SnapCalorie really free?
Partly. SnapCalorie’s FAQ says it is “FREE for up to 3 AI logs per day”, with a premium subscription for people who want more. If you eat three meals and log each one with a photo, that covers you. Snacks and drinks would push you past the limit on most days.
SnapCalorie does some things well. Its App Store listing describes LiDAR portion measurement on iPhone Pro models (“Measure exact food volume using depth sensors”), and it supports voice notes. Its FAQ gives a measured accuracy figure of “around 15% mean caloric error”, which is more transparency than most apps offer. Its Google Play listing shows in-app purchases but no “Contains ads” label.
Which popular apps keep AI logging behind a paywall?
The biggest names all have free plans, but the AI part is paid:
- MyFitnessPal: its help centre calls Meal Scan “a Premium-only feature” and says voice logging is “available for Premium users”. The free plan is strong for manual logging, and its App Store listing says it has over 20.5 million foods. Its Google Play listing shows “Contains ads”.
- Lose It!: its help centre says Snap It “is exclusively available to Premium members”. The App Store lists photo meal logging and AI voice as Premium plan features. Lose It! Basic is $0 and includes a personalised calorie budget.
- Cronometer: Photo Log and Voice Log are listed as “exclusive features for Gold Subscribers”. Its free tier is generous in other ways: up to 95 nutrients and, in its own words, “Unlimited use of our Barcode Scanner is included in a Basic account.”
- Foodvisor: its help centre says the free version lets you track food “by manually logging meals into the food diary”, and lists “Meal analysis with photos” under Premium.
If you mainly eat packaged food, Cronometer’s free barcode scanner may save you more time than any photo feature. We compare two of these in more depth in Cronometer vs MyFitnessPal.
What about Cal AI and MacroFactor?
Both are paid apps with a trial, not free apps.
Cal AI is free to download, but its US App Store listing says “food scanning analysis results require a subscription”, and its website offers a 3-day free trial. Its website says it uses your phone’s depth sensor to calculate food volume, and its FAQ describes it as “about 80% accurate”. Its terms say subscriptions renew automatically unless cancelled at least 24 hours before the period ends. Our Is Cal AI free? page walks through the trial.
MacroFactor answers the question directly on its website: “Is there a free version? No, there isn’t (and will never be) a free version”. It does have AI logging (snap a photo or describe your meal) and an ad-free app with an expenditure algorithm that adapts your targets, after a 7-day trial. If you are happy to pay, it is a serious option. See our MacroFactor alternative page for more.
How does Calo AI compare as a free AI tracker?
Calo AI is a free AI calorie tracker on Android, with a web app that works on iPhone, iPad, Mac and PC. Every feature is free:
- AI photo meal scanning, plus voice and text logging, with no daily cap.
- Calorie and macro targets, weight and macro analytics, and step tracking.
- An AI nutrition coach and an intermittent fasting timer (12:12 to 20:4 plans).
- Personalised meal plans using dishes from your own country’s cuisine.
The trade-offs are real. The free version shows ads, including one before each meal scan, and there is a short timer between AI coach messages. Premium removes ads and waiting but adds no extra features. Calo AI has no barcode scanner and no native iPhone app. Photo results are estimates, and portion size is the hardest part, so describing the dish or correcting a result by voice or text gives a closer number.
You can test the photo side on one meal, without signing up, using our photo calorie calculator.
How do you choose the right free AI calorie tracker?
Start with how you actually eat:
- You log 3 meals a day and want no ads: SnapCalorie’s free tier may be enough.
- You snack a lot or want to log everything by photo or voice: Calo AI has no daily cap, if you accept ads.
- You eat mostly packaged food: a free barcode scanner (Cronometer’s Basic account) may beat photo logging.
- You want the biggest food database and don’t mind typing: MyFitnessPal’s free plan.
- You are willing to pay for a polished, ad-free app: MacroFactor or Cal AI, after trying the trial.
Whichever you pick, check the paywall screen before you confirm anything. Cal AI’s terms say subscriptions renew automatically unless cancelled at least 24 hours before the period ends, and its FAQ says deleting the app does not cancel your subscription. Read the terms of any trial before you start it.
Are free AI calorie trackers less accurate than paid ones?
Free or paid, every photo tracker gives an estimate. Two plates of pasta can look the same and differ a lot in oil, cheese and portion. The best habit is the same in every app: describe hidden ingredients (oil, butter, dressing), check one or two numbers against the label, and correct the entry when it looks off. Our guide on how accurate AI calorie trackers are covers this in detail, and our calorie deficit calculator gives you a sensible target to log against.
Can you try Calo AI before deciding?
Yes. You can try the web app free in any browser or get Calo AI on Google Play. If it is not for you, the apps above are good choices for different needs, and most offer at least a free way to start.
A note on safety: if you are pregnant or breastfeeding, under 18, or have diabetes, PCOS, kidney disease or a history of eating disorders, speak to a doctor or registered dietitian before following a calorie target from any app. Real results vary from person to person.