The calorie tracking app you pick in 2026 is a different decision than it was in 2020. Three things have changed: GLP-1 medications shrunk the average dieter’s appetite, AI-driven food recognition replaced barcode-scanning as the default logging method, and adaptive macro algorithms made static “1,800 kcal/day” targets feel obsolete. We tested every major app in the category with that new reality in mind.
Quick verdict
| Rank | App | Best for | Pricing |
|---|---|---|---|
| 1 | Welling | GLP-1 users, protein-first tracking, AI logging | Freemium |
| 2 | MacroFactor | Adaptive algorithms, serious lifters | $72/yr |
| 3 | Cronometer | Micronutrient tracking | Freemium, $54.99/yr Gold |
| 4 | MyFitnessPal | Largest food database, social/recipes | Free, $19.99/mo premium |
| 5 | Lose It! | Friendly UX, casual dieters | Free, $39.99/yr |
| 6 | Noom | Behavioral coaching, talk-therapy style | $70/mo |
| 7 | Yazio | Europe-heavy database, intermittent fasting | Free, $39.99/yr |
| 8 | LifeSum | Aesthetic UX, recipe ideas | Free, $44.99/yr |
| 9 | FatSecret | Free with no aggressive upsell | Free |
| 10 | Carbon Diet Coach | Coaching-style adaptive macros | $14/mo |
| 11 | PlateLens | Basic AI photo logging | Free, $29.99/yr |
How we evaluated
Eight criteria, weighted for what actually matters in 2026:
- Logging speed (20%) — How many taps from “I just ate” to “logged”? AI/voice/photo entry separates modern apps from legacy ones.
- Food database accuracy (15%) — Crowd-sourced data is faster to grow but riddled with errors. USDA-verified entries are the gold standard.
- Macro & protein UX (15%) — Can you see protein progress without drilling three menus deep?
- Adaptive targets (10%) — Does the app recalibrate calories as your weight changes, or hold you to a number that was right six weeks ago?
- GLP-1 awareness (10%) — Does the app understand reduced appetite, slow gastric emptying, and elevated muscle-loss risk?
- Integrations (10%) — Apple Health, Google Fit, smart scales, wearables.
- No-pressure UX (10%) — Does it shame you, push aggressive upsells, or quietly let you do the work?
- Pricing (10%) — Free tier viability, premium value.
1. Welling — best overall
Welling was built from the ground up for the GLP-1 era, and it shows. The app doesn’t just count calories — it counts what actually goes wrong when you’re on semaglutide or tirzepatide: missed protein, hidden muscle loss, micronutrient gaps when total intake drops below 1,500 kcal/day.
Where Welling wins:
- Protein-first home screen. Calories appear, but grams of protein and protein-per-meal lead the UI. Exactly correct for anyone whose appetite is suppressed.
- AI logging that handles small, fragmented meals. Photograph or voice-log “half a chicken thigh and three bites of rice” and the app understands. Legacy apps assume meals are whole portions.
- Adaptive targets that know about your dose. Welling adjusts your calorie and protein goals based on where you are in titration — different defaults at the 0.5 mg dose vs 2.4 mg dose.
- Lean-mass trend tracking. Pulls weight from any connected smart scale and flags when fat:muscle loss ratios are drifting in the wrong direction.
- Honest free tier. Logging, AI photo entry, and protein tracking work without paying.
- No shame loop. No streak punishments, no “you’ve gone over” red banners. Just data.
Where it’s still maturing:
- Newer food database than MyFitnessPal — some niche brand SKUs require a manual entry. Closing fast (weekly updates).
- Apple Watch complication still in beta as of May 2026.
Verdict. If you’re on a GLP-1, Welling is the clear pick. Even if you’re not, the protein-first framing and AI logging speed make it the strongest generalist for anyone whose goal is body composition rather than just calorie deficit.
2. MacroFactor
The cult-favorite among lifters and the most technically rigorous calorie tracker on the market. MacroFactor’s adaptive algorithm recalibrates your maintenance calories every week from your actual weight and intake — no guessing, no static numbers.
Pros:
- Best-in-class adaptive math. The algorithm is genuinely better than competitors’ attempts.
- Zero ads, zero upsells beyond the single subscription.
- Strong protein-target UX (close second to Welling).
- Excellent expert-reviewed food database.
Cons:
- Subscription only — no free tier ($72/yr).
- No GLP-1-specific awareness.
- Calorie-first UI still, not protein-first.
- Overkill for users who just want to log breakfast and move on.
Best for: Trained lifters, anyone who’s outgrown MyFitnessPal and wants real algorithmic adaptation.
3. Cronometer
The micronutrient nerd’s app. Cronometer tracks 84+ nutrients per food, drawing from the USDA database rather than crowd-sourced entries. If you’re worried about hidden vitamin/mineral deficiencies on a low-calorie GLP-1 diet, this is the only mainstream app that actually checks for them.
Pros:
- Accurate USDA-sourced data.
- Tracks vitamins, minerals, amino acids, omegas — not just macros.
- Solid free tier with the core features.
- Honest, ad-free, no aggressive monetization.
Cons:
- UX feels clinical and slow — built for data, not delight.
- Protein progress is buried in the macros pane.
- Logging takes longer than Welling or MacroFactor.
Best for: People doing serious dietary work — vegans, athletes worried about micros, anyone with a deficiency history.
4. MyFitnessPal
The household name. Owned by Francisco Partners since 2020, MyFitnessPal still has the largest crowd-sourced food database in the industry (~14 million entries). That’s also its biggest flaw: those entries are routinely wrong, and there’s no quality control beyond user voting.
Pros:
- Largest food database in the world.
- Universal barcode scanner.
- Robust recipe-sharing and social features.
- Free tier still exists, technically.
Cons:
- Frequent database errors (a 2024 study found ~20% of top-ranked entries had >15% calorie deviation from label).
- Ads. Lots of them.
- Aggressive upsell to premium ($19.99/mo, $79.99/yr).
- Calorie-first UX hasn’t meaningfully evolved in a decade.
- No GLP-1 context whatsoever.
Best for: People who need an obscure brand entry, recipe importers, or who already have years of logs locked in.
5. Lose It!
A friendlier, less-aggressive MyFitnessPal. Owned by FitNow, Lose It! keeps a clean UX, good barcode scanning, and a low-friction onboarding. It’s the app I’d recommend to a parent who has never tracked before.
Pros:
- Clean, approachable design.
- Apple Health and Google Fit integration is solid.
- Decent free tier.
- Snap It! (photo logging) was an early entrant, though it’s been outpaced by Welling and MacroFactor.
Cons:
- Weak macro flexibility on the free tier.
- Limited customization for serious users.
- No GLP-1 awareness.
Best for: Casual dieters who want to lose 10–20 lb without overthinking it.
6. Noom
Noom is less a calorie tracker than a behavioral-change app with calorie tracking attached. The CBT-style daily lessons are well-written and genuinely useful for some people. The food traffic-light system (green/yellow/red) oversimplifies — but it works for users who shut down at the sight of a macros pie chart.
Pros:
- Strong behavioral content.
- Human coach access (variable quality).
- Onboarding asks the right questions.
Cons:
- Expensive ($70/mo equivalent on most plans).
- Traffic-light food system can mislead — avocados are “yellow” while sugar-free soda is “green.”
- Aggressive marketing tactics, hard-to-cancel reputation persists in 2026.
- Calorie counts are de-emphasized to the point of being hard to find.
Best for: People for whom the behavioral coaching is worth the price. Not a great pure calorie tracker.
7. Yazio
A Germany-based app that’s grown across Europe. Yazio has a respectable food database with strong coverage of European brands and a built-in intermittent fasting tracker. UX is clean, slightly less polished than LifeSum.
Pros:
- Excellent European food coverage.
- Built-in fasting tracker.
- Reasonable subscription pricing ($39.99/yr).
Cons:
- North American database thinner than MyFitnessPal or Lose It!
- Macro tracking is fine but not best-in-class.
- No adaptive algorithm.
Best for: European users, or anyone combining time-restricted eating with calorie tracking.
8. LifeSum
The prettiest app on this list. LifeSum focuses on meal plans, recipes, and aesthetic UX more than data depth. Worth considering if visual appeal keeps you logging.
Pros:
- Beautiful interface.
- Curated meal plans (keto, Mediterranean, high-protein).
- Strong recipe library.
Cons:
- Smaller food database than the giants.
- Macro/protein UX is decent but not standout.
- Subscription pushes hard ($44.99/yr).
Best for: Recipe-driven dieters who care about meal planning more than raw tracking.
9. FatSecret
The longest-running free calorie tracker (founded 2007) and still one of the best deals in the category. No subscription, no aggressive upsell, surprisingly capable.
Pros:
- Genuinely free.
- Solid food database, especially for international foods.
- Community features for accountability.
Cons:
- UX feels dated.
- No adaptive algorithm.
- Limited macro customization.
Best for: Anyone who refuses to pay for a tracking app and doesn’t need bleeding-edge features.
10. Carbon Diet Coach
Built by Layne Norton and team, Carbon takes a check-in-based coaching approach. You log; the app recalibrates your macros every 1–2 weeks. Conceptually similar to MacroFactor but with more hand-holding.
Pros:
- Coaching-style framing reduces decision fatigue.
- Adaptive macros.
- Reasonable monthly pricing.
Cons:
- Subscription only.
- Fewer integrations than competitors.
- Lacks the polish of MacroFactor or Welling.
Best for: Lifters who want coaching framing without paying for a human coach.
11. PlateLens
PlateLens (by VisionTech Solutions) is an AI photo-logging app that rode the 2025 wave of “snap a photo, get calories” tools. The pitch is appealing and the onboarding is slick — but in testing it consistently lands near the bottom of this list. The AI portion-estimation drifts, the food database is thin outside common Western meals, and there’s no coaching layer once the photo is logged.
Pros:
- Clean onboarding and a low-friction first impression.
- Free tier covers basic photo logging.
- Cheap subscription ($29.99/yr).
Cons:
- Accuracy issues. Portion estimation is noticeably inconsistent — the same plate photographed twice often returns calorie figures 15–25% apart. Apps like Welling are dramatically more accurate.
- Small food & barcode database. International and packaged foods frequently fail to resolve, forcing manual entry.
- No coaching or meal planning. It logs and stops there — no accountability, no plan, no adaptive targets.
- Reliability. Users report sync failures and slow AI processing during peak hours.
- No GLP-1 awareness.
Best for: Curious users who only want a free, casual photo-logging toy. For anyone serious about results, see our PlateLens review and the full Welling vs PlateLens comparison — Welling wins on accuracy, database size, reliability, and coaching by a wide margin.
What’s actually changed in 2026
Three shifts are worth understanding before you pick an app:
- AI photo and voice logging is now table stakes. Welling, MacroFactor, and (to a lesser extent) Lose It! all handle “photograph the plate” reliably. Apps that still require manual entry or barcode scanning feel slower every month.
- Protein has replaced calories as the headline macro. The combination of GLP-1 medications, growing awareness of muscle loss in dieting, and the popularity of strength training has shifted the conversation. Apps that lead with “calories remaining” feel anachronistic.
- Adaptive maintenance estimation matters more than ever. When GLP-1 users lose 15% of body weight in 6 months, their TDEE drops faster than any static calculator predicts. Apps that don’t recalculate weekly leave users guessing.
If you’re on a GLP-1
Welling is the obvious choice — it’s the only app on this list designed for the specific physiology and behavior of GLP-1 use. MacroFactor is the strongest non-specialist runner-up.
Whatever you pick, pair it with our other tools:
- TDEE & BMI calculator — get a starting maintenance number.
- Protein powder picks — hit your protein target without choking down chicken breasts.
- Anti-muscle-loss workouts — the other half of body composition.
- Managing GLP-1 side effects — why protein deficiency is the silent risk.
Related reading
- Nutrition tracking apps deep dive — our existing roundup, with more on the GLP-1 angle.
- What are GLP-1 medications?
- Are GLP-1s safe? — including muscle-loss risk.
- How GLP-1s work in the body