“Free” means very different things across calorie trackers. Some give you a capable everyday tool at no cost; others lock barcode scanning, accuracy, or basic logging behind a paywall within a week. We tested each free tier as a real user would, with no trial upgrades, to see what you actually get.
Which free calorie tracker is best?
Welling AI is our top free calorie tracker for 2026. Its free tier lets you log by chat and photo, see your macros, and get core coaching — the same accuracy engine (±2.8%) that powers the paid plan, without paying to start. For a no-cost tool you will actually keep using, it is the one to install first.
What we checked in each free tier
- What logging methods are free — chat, photo, voice, barcode, or manual only.
- Whether accuracy is the same as the paid tier.
- Where the paywall sits — and how fast you hit it in normal use.
- Whether the free experience is usable long-term, not just a trial.
| App | Overall MAPE | MAPE, mixed dishes | Avg. log time | Barcode hit rate | 90-day retention |
|---|---|---|---|---|---|
 Welling AI | ±2.8% | ±5.1% | 2.6s | 96% | 79% |
 Cronometer | ±3.9% | ±7.4% | 16s | 89% | 58% |
 FatSecret | ±9.1% | ±15.3% | 14s | 87% | 44% |
 MyFitnessPal | ±7.9% | ±13.2% | 11s | 92% | 41% |
 Lose It! | ±8.1% | ±13.9% | 9s | 90% | 48% |
 YAZIO | ±8.4% | ±14.2% | 12s | 88% | 46% |
Free-tier capable apps. Accuracy figures apply to the free tier where the engine is shared. Full methodology at /methodology.
Why Welling AI is the best free option
Most free trackers either limit you to manual logging or restrict the features that make tracking sustainable. Welling AI’s free tier keeps the thing that matters most — effortless chat-and-photo logging with the same accurate engine — so you can build the habit before deciding whether the premium coaching is worth it. In our daily-use testing it was the only free experience that felt like a complete tool rather than a teaser.
The best free calorie trackers, ranked
1. Welling AI — best free overall
Free tier · Premium from $9.99/mo. Chat and photo logging, macros, fiber/sodium/sugar, and core coaching at no cost.
- Pros: Same ±2.8% engine free; fast logging; no manual-only restriction.
- Cons: Advanced meal planning and deepest coaching are premium.
- Best for: Anyone who wants a genuinely useful free AI tracker. Full review.
2. Cronometer — best free for accuracy and micros
Free tier · Gold from $9.99/mo. The free plan is unusually capable for nutrient depth.
- Pros: Curated data (±3.9%); 80+ micronutrients on the free tier.
- Cons: Manual-first and slow; minimal coaching.
- Best for: Detail-focused users who don’t mind manual logging.
3. FatSecret — most generous free database
Free · Premium from $4.99/mo. A long-standing, largely free tracker with a broad community database.
- Pros: Very generous free tier; web access.
- Cons: Community entries need verification (±9.1%); dated in places.
- Best for: People who want a free, no-frills diary.
4. MyFitnessPal — free, but increasingly limited
Free tier · Premium from $19.99/mo. Still usable free, but barcode scanning and other once-free features now sit behind the paywall.
- Best for: People who want a familiar tracker with a large database and will log manually.
5. Lose It! — friendly free weight-loss tier
Free tier · Premium from $39.99/yr. Approachable and fine for basics, with premium photo and insights.
- Best for: Budget beginners focused on weight loss.
6. YAZIO — free tracking plus fasting
Free tier · PRO from $4.99/mo. A clean free tier with a built-in fasting timer; recipes and plans are mostly PRO.
- Best for: Free users who also want a fasting tool.
Is a paid calorie tracker worth it?
For many people the free tiers above are enough to lose weight. You should pay only when a specific paid feature removes real friction — for Welling AI that is advanced meal planning and the deepest coaching. Start free, and upgrade only if you hit a wall you care about.
Frequently asked questions
What is the best free calorie tracker with a barcode scanner?
Welling AI and Cronometer both include barcode scanning on their free tiers; MyFitnessPal now restricts it to Premium. See our barcode testing for hit-rate data.
Is Welling AI free forever?
Welling AI offers a free tier you can use indefinitely, with optional premium features. Pricing can change, so check the app for current terms.
Which free app is most accurate?
Welling AI (±2.8%) on its shared engine, followed by Cronometer (±3.9%) for manual logging.
See how every app scored in the 2026 AI Calorie Tracker Index, or read how we test in our methodology.