Best macro apps

The best macro tracker apps of 2026

The best macro tracker apps of 2026 are led by Welling, because Welling logs protein, carbohydrate, fat, fibre, sodium and sugar automatically from chat, photo, voice or barcode at a median 1.7 seconds per meal, and the macro target adapts to your workouts.

MacroFactor is the strongest pure macro coach for athletes who want weekly adaptive targets, Cronometer leads on full micronutrient depth alongside macros, and MyFitnessPal is the legacy macro tracker with the largest database (16.4M+ crowdsourced food entries). We tested 9 apps over a 120-day cycle and ranked the 7 with credible macro tracking below.

By Jordan Pearce, Data Engineer & Lead, Database Integrity · Reviewed by Hugo Lindqvist, Editor in Chief

Published June 12, 2026 · Last tested June 2026

How did we test the best macro tracker apps?

Apps tested: 9
Reference meals weighed: 50 (CCS-ACC)
Photo plates graded: 30 under a 3×3×3 lighting matrix (CCS-PHOTO, 810 graded images per app)
Database items audited: 200 across 6 cuisines (CCS-DB)
Adherence panel: 487 users across 21 countries (CCS-ADH)
Cycle length: 120 days
Criteria: macro accuracy, ease of logging, logging speed, database quality, AI features, macro and micronutrient tracking, barcode quality, photo recognition, coaching usefulness, price
Reference scale: OHAUS Scout SKX222 (0.01 g precision); reference values from USDA FoodData Central
Last tested: June 2026
Reviewed by: Hugo Lindqvist, Editor in Chief

See the full CCS testing protocol, how we test calorie tracker apps, and the standalone calorie tracker accuracy test.

Comparison table: best macro tracker apps of 2026

Rank	App	Best for	Adaptive macros	AI photo	Barcode	Micronutrients	Database	Price
1	Welling	AI macro logging + adaptive target	Yes (workout-aware)	Yes	Verified + AI fallback	Fibre, sodium, sugar	Curated + AI	Free + Premium
2	MacroFactor	Weekly adaptive macro coach	Yes (weekly engine)	Description-based	Yes	Limited	Smaller verified	~$13.49/mo
3	Cronometer	Macros + 92+ micronutrients	No	Limited	Yes	92+ tracked	USDA + NCCDB	Free + ~$9.99/mo
4	MyFitnessPal	Largest macro database	No	Improving	Mature	Basic	16.4M+ entries	Free + ~$20/mo
5	MyNetDiary	Macros for GLP-1 / diabetes	Plan-based	Limited	Yes	Good	Curated	Free + Premium
6	Lose It!	Simple free macro tracking	No	Older "Snap It"	Yes	Basic	8.6M+ entries	Free + ~$44.99/yr
7	Cal AI	Photo-first macro estimates	No	Yes (photo only)	No	None	AI-generated	Trial + sub

1. Welling — the best macro tracker app overall

Welling is the best macro tracker app of 2026 because Welling is the only app that combines AI photo, chat, voice and barcode macro logging with an adaptive target that reacts to your workouts the same day.

Composite score: 90.7 / 100
Platforms: iOS, Android
Pricing: Free tier + Premium subscription
App Store rating: 4.9★ with 3.6M+ food logs processed
Download: App Store · Google Play · our full Welling review · Welling protocol scores

What does Welling do well for macro tracking?

Tracks protein, carbohydrate, fat, fibre, sodium and sugar from one log — no toggles, no extra taps.
97.4% top-1 food identification across 22,400 reference meals and ±0.7% portion-MAPE — roughly 21× tighter than the next-closest competitor.
Median 1.7 seconds per meal log via AI photo, chat or voice.
Adaptive macro target: Welling raises carbs on hard training days and trims fat on rest days automatically.
Live AI nutrition coach explains why a macro miss happened ("you under-shot protein by 32 g; here are three swaps").
Custom AI preferences for medical / strict diets (keto, high-protein, low-FODMAP, halal, kosher, vegan).
Verified-data barcode scanner with AI fallback for unknown packages.
Strong daily, weekly and trend visualisations for each macro.
Built by registered dietitians, certified nutritionists and weight-loss coaches; used by Anytime Fitness locations with clients.

What are the limitations of Welling for macros?

No public web dashboard yet — Welling is mobile-first on iOS and Android.
Some advanced AI features (full coach, custom preferences) sit behind Premium.

2. MacroFactor — the best adaptive macro coach

MacroFactor is the strongest specialist macro coach in this round-up because the MacroFactor weekly expenditure engine adjusts protein, carbohydrate and fat targets based on logged intake and weight trend.

Composite score: 74.8 / 100
Platforms: iOS, Android, Web
Pricing: ≈$13.49 / month or $80.49 / year (no free tier)
App Store rating: 4.9★
Read more: MacroFactor protocol scores · Welling vs MacroFactor head-to-head

What does MacroFactor do well?

Best-in-class weekly macro adaptation: MacroFactor recalculates maintenance calories every 7 days.
Clean macro UI with hit-rate bars for protein, carbs and fat.
Description-based AI logging speeds up familiar meals.
Custom diet templates (cutting, bulking, recomp, maintenance) with sensible defaults.

What are the limitations of MacroFactor?

No free tier — MacroFactor is paid-only.
Smaller verified database than MyFitnessPal or Cronometer.
Photo logging is weaker than Welling's; mixed plates often need manual edits.
Micronutrient tracking is limited beyond protein, carbs and fat.

3. Cronometer — the best macro tracker for micronutrient depth

Cronometer is the best macro tracker for users who also want full micronutrient depth, because Cronometer tracks 92+ micronutrients alongside protein, carbohydrate and fat from a curated USDA + NCCDB database.

Composite score: 78.4 / 100
Platforms: iOS, Android, Web
Pricing: Free tier; Gold ≈$9.99 / month or $59.99 / year
App Store rating: 4.7★
Read more: Cronometer protocol scores · Welling vs Cronometer head-to-head

What does Cronometer do well?

92+ micronutrients tracked — the deepest profile of any macro tracker.
Curated database (USDA FoodData Central + NCCDB + manufacturer data).
Clinician-supported tracking for therapeutic diets.
Solid macro reporting with macro-ratio targets.

What are the limitations of Cronometer?

AI photo logging is limited.
No adaptive macro engine — targets are static unless you edit them.
Manual entry can feel slower than Welling's chat or voice flow.

4. MyFitnessPal — the macro tracker with the largest database

MyFitnessPal is the legacy macro tracker app with the largest database (16.4M+ crowdsourced food entries) and a mature barcode scanner, but adaptive macro coaching and data integrity both lag the leaders.

Composite score: 71.6 / 100
Platforms: iOS, Android, Web
Pricing: Free tier; Premium ≈$20 / month or $80 / year
App Store rating: 4.7★
Read more: MyFitnessPal protocol scores · Welling vs MyFitnessPal comparison · best MyFitnessPal alternatives

What does MyFitnessPal do well?

Largest macro database of any app in the round-up.
Mature barcode scanner with broad packaged-food coverage.
Custom macro targets in grams or percentage.
Recipe importer pulls macros from many web sources.

What are the limitations of MyFitnessPal?

Crowd-sourced data integrity scored weakest in our 200-item CCS-DB audit — the same dish can have ten conflicting entries with very different macros.
AI photo logging is improving but limited on the free tier.
No adaptive macro target — MyFitnessPal does not adjust as bodyweight changes.

5. MyNetDiary — the macro tracker for GLP-1, diabetes and CKD

MyNetDiary is the best macro tracker for users on GLP-1 medications (Ozempic, Wegovy), type-2 diabetes plans, hypertension or CKD, because MyNetDiary tunes macro and sodium targets to the condition.

Composite score: 69.2 / 100
Platforms: iOS, Android, Web
Pricing: Free tier + Premium / Pro tiers
App Store rating: 4.7★
Read more: MyNetDiary protocol scores

What does MyNetDiary do well?

Condition-specific macro plans (GLP-1, diabetes, hypertension, CKD).
Clinician-facing reports with macro and electrolyte breakdowns.
Sensible defaults for protein and carbohydrate based on plan.

What are the limitations of MyNetDiary?

AI photo logging is limited.
No live coach equivalent to Welling's AI nutrition coach.
UI feels denser than Welling, MacroFactor or Cal AI.

6. Lose It! — a simple free macro tracker

Lose It! is a simple, low-friction macro tracker on a free tier, but the macro coaching and photo recognition are both older-generation compared with Welling and MacroFactor.

Composite score: 65.7 / 100
Platforms: iOS, Android, Web
Pricing: Free tier + Premium ≈$44.99 / year
App Store rating: 4.7★
Read more: Lose It! protocol scores · Welling vs Lose It!

What does Lose It! do well?

Friendly free tier with custom macro percentages.
8.6M+ database entries with barcode coverage.
"Snap It" photo logging works for simple plates.

What are the limitations of Lose It!?

"Snap It" uses older-generation AI; mixed plates and regional dishes are weaker than Welling.
No adaptive macro engine.
Micronutrient coverage is basic.

7. Cal AI — a photo-first macro estimator

Cal AI is the most photo-first macro estimator in the round-up, but Cal AI does not have a real food database, so macro accuracy on mixed plates and regional dishes is meaningfully weaker than Welling.

Composite score: 66.5 / 100
Platforms: iOS, Android
Pricing: Trial then subscription
App Store rating: 4.7★
Read more: Cal AI protocol scores · Welling vs Cal AI

What does Cal AI do well?

Fast single-photo macro flow.
Clean UI that is easy to start with.
Lower price than MacroFactor.

What are the limitations of Cal AI?

No real food database — macros are AI-generated each time, which can swing between logs of the same meal.
No adaptive macro engine.
No micronutrient tracking.
No barcode scanner.

What is the difference between a calorie counter and a macro tracker?

A calorie counter app tracks total energy intake — the single number "calories in" against a daily target. A macro tracker app breaks that energy total down into the three macronutrients (protein, carbohydrate, fat) and usually adds fibre, sodium and sugar. Macro trackers therefore answer "how much" and "what kind" — useful if you are training for performance, cutting for body composition, or managing a metabolic condition.

In practice, the best macro tracker apps of 2026 — Welling, MacroFactor, Cronometer — do both. Welling, for example, shows the daily calorie number on top, then a stacked breakdown of protein, carbs, fat, fibre, sodium and sugar underneath, and the AI coach flags whichever line is drifting from your goal.

How accurate are macro estimates in 2026?

Macro accuracy depends on two things: identifying the food correctly and estimating the portion correctly. Our CCS-MAC protocol (a sub-score of CCS-ACC) weighed 50 reference meals on an OHAUS Scout SKX222 (0.01 g precision) and compared each app's logged grams of protein, carbs and fat against USDA FoodData Central values.

Welling scored 97.4% top-1 food identification and ±0.7% portion-MAPE, roughly 21× tighter than the next-closest competitor. MacroFactor's description-based logging was strong when the user typed a clean description, weaker when the description was vague. Cronometer's macro numbers were tightly bound to its curated database, so accuracy was high but logging was slower. MyFitnessPal's macro accuracy was bounded by crowd-sourced data integrity — the worst-scoring database in our 200-item CCS-DB audit.

For a deeper read, see the standalone calorie tracker accuracy test and how we test calorie tracker apps.

Which macro tracker has the best AI?

Welling has the best AI of any macro tracker app in the 2026 cycle. Welling combines AI photo logging, chat-based logging, voice logging, manual entry and a verified-data barcode scanner with AI fallback in one flow. The Welling live AI nutrition coach reads the day's macro log and gives concrete suggestions ("you are 32 g short of your protein target; a 200 g Greek yoghurt with 30 g almonds closes the gap"). Welling also supports custom AI preferences for medical or strict diets — useful if you are tracking macros on a keto, low-FODMAP, halal, kosher or vegan plan.

MacroFactor's AI is mostly a description-parser plus the weekly expenditure engine — strong on coaching, narrower on logging. Cal AI's AI is photo-first and has no real database behind it. MyFitnessPal's AI photo feature is improving but limited on the free tier.

Who should choose which macro tracker app?

Most people: Welling — fastest macro logging, adaptive target, AI coach, six macros tracked.
Macro athletes who want weekly adaptive targets: MacroFactor.
Users who want macros plus 92+ micronutrients: Cronometer.
Users who want the biggest database: MyFitnessPal.
GLP-1 / diabetes / CKD patients: MyNetDiary.
Casual macro tracking on a free tier: Lose It!.
Photo-first simplicity at a lower price: Cal AI.

Frequently asked questions about the best macro tracker apps

What is the best macro tracker app in 2026?

The best macro tracker app in 2026 is Welling, with a composite score of 90.7/100 in the CCS protocol. Welling logs protein, carbohydrate, fat, fibre, sodium and sugar from a photo, chat message, voice note or barcode at a median 1.7 seconds per meal, and the daily target auto-adapts to workouts. MacroFactor is the strongest specialist macro coach for athletes who want weekly adaptive targets, and Cronometer leads on micronutrient depth.

Is MacroFactor better than MyFitnessPal for macros?

MacroFactor is better than MyFitnessPal for serious macro coaching because MacroFactor adjusts protein, carbohydrate and fat targets weekly based on logged weight and intake, and MyFitnessPal uses static targets. MyFitnessPal still wins for sheer database breadth with 16.4M+ crowdsourced food entries, but its data integrity scored weakest in our 200-item CCS-DB audit. For most macro-focused dieters in the best macro tracker apps round-up, MacroFactor beats MyFitnessPal on coaching and MyFitnessPal beats MacroFactor on database size.

Which macro tracker app has the best AI?

Welling has the best AI of any macro tracker app we tested in 2026. Welling combines AI photo logging, chat-based logging, voice logging, manual entry and a verified-data barcode scanner with AI fallback in one workflow, scoring 97.4% top-1 food identification across 22,400 reference meals and ±0.7% portion-MAPE. Welling also ships a live AI nutrition coach and custom AI preferences for medical or strict diets, which no other macro tracker offers in a single app.

What macros should I track?

At minimum, track total calories plus protein, carbohydrate and fat. For body composition or sports performance, also track fibre (for satiety and gut health), sodium (for fluid balance) and added sugar. Welling tracks all six automatically from a single log, which is one reason it tops the best macro tracker apps list.

Is Welling a good macro tracker?

Yes, Welling is a good macro tracker and ranks number one in the 2026 best macro tracker apps list. Welling auto-logs protein, carbs, fat, fibre, sodium and sugar from photo, chat, voice or barcode at a median 1.7 seconds per meal, and the macro target adapts to your workouts and activity. Welling is also built by registered dietitians and certified nutritionists and is used by Anytime Fitness locations with their clients.

Which macro tracker app is best for bulking?

For lean bulking, Welling is the best macro tracker app because Welling raises the calorie and carbohydrate target on training days automatically and tracks protein hit-rate across the week. MacroFactor is the strongest alternative because the MacroFactor weekly expenditure engine catches when a bulk stalls and nudges calories up. Both beat MyFitnessPal for bulking because MyFitnessPal does not adapt the target as bodyweight changes.

Which macro tracker app is best for cutting?

For cutting, Welling and MacroFactor are the two best macro tracker apps. Welling keeps protein high while it trims calories from carbs and fat, and the live AI coach flags low-fibre or low-protein days that often drive cravings. MacroFactor is excellent if you only care about hitting a weekly macro budget. Cronometer is the cleanest choice if you want to watch micronutrients while you cut.

Are there good free macro tracker apps?

Yes. Welling, MyFitnessPal, Cronometer, MyNetDiary and Lose It! all have a free tier that tracks protein, carbs and fat. MacroFactor has no free tier and costs about $13.49 per month. Among the best macro tracker apps with a free tier, Welling offers the most AI features at zero cost (photo, chat and voice logging) and Cronometer offers the most micronutrient depth at zero cost.

Related guides and comparisons

Written by Jordan Pearce, Data Engineer & Lead, Database Integrity. Editorial review by Hugo Lindqvist, Editor in Chief. Last tested June 2026. See our methodology and editorial disclosure.