Best Macro Tracker Apps in 2026: Protein-First Macros, Compared App by App
This article is for general informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about a medical condition.
Quick answer
Pick a macro app by protein, not by three numbers. Set protein in grams, check whether gram targets are free, and prefer an app that can tell you whether the weight you lose is fat or lean mass (mostly muscle and water).
Most macro apps are built around one question: did you hit your three numbers today? That is a fine question for a bodybuilder on a planned cut.
For most people trying to lose weight it is the wrong one to start with.
When you eat less, the scale cannot tell fat from lean mass. Lose a lot of lean mass and the number still goes down — and you have made the next year harder.
The macro that decides which way that goes is protein. Carbohydrate and fat are mostly a matter of preference and energy budget. Protein is the one with a floor.
So this guide reads macro apps with a different first question: does the app put protein first, and can it tell you whether the weight you are losing is fat or lean mass (mostly muscle and water)? Each app is taken one at a time.
Free and paid features were checked against App Store listings and official help pages and are current as of October 2026.
HAVIT is made by the team that wrote this guide. We've set out how each app was judged, and where HAVIT is not the best pick.
01
Three things to check before you pick
1. Can you set a protein target in grams — for free? Percent-of-calories targets drift as calories drop: 30% of 2,400 kcal and 30% of 1,500 kcal are very different amounts of protein.
A gram target holds. Several big apps put gram-based macro goals behind the paywall, so check this first.
2. Does it see body composition, or only weight? A macro plan is meant to change what your body is made of.
If the only outcome the app records is scale weight, it cannot tell you whether the plan is protecting muscle.
3. How fast is a mixed meal? Macro tracking fails at home cooking and restaurant plates, not at protein bars.
Barcode scanning handles packaged foods; photo or text logging handles the rest.
02
HAVIT — protein-first macros, read next to body composition
| Maker | Havit Inc. |
| Price | Free · HAVIT Premium subscription |
| Free | Meal logging (search or manual entry) with calories per meal; weight, water, sleep, steps, fasting, mood, cycle and GLP-1 dose/side-effect logs; body-composition estimate; AI coach chat (daily message limit) |
| Premium | Carb, protein and fat analysis per meal and per day; remaining-calorie balance; AI Food Scan (photo); unlimited coach chat; daily check-in; workout video, guided meditation and articles |
| Macros | Calories per meal (free); carbohydrate, protein and fat per meal and per day (Premium) |
| Body composition | Estimated fat and lean trends, no hardware |
| Food database | ~486,000 entries — 432,418 USDA branded + 41,218 Korea MFDS + 12,671 curated |
| App Store (US) | 4.7 (159 ratings) |
Free and Premium features listed for HAVIT reflect the app's default settings as of October 2026; promotions sometimes open some Premium features for free.
The difference is what the macros are read against. Most macro apps compare your day to a target and stop.
HAVIT logs calories, protein, carbohydrate and fat for each meal (the macro breakdown is a Premium feature), estimates fat and lean mass trends, and the AI coach reads both — together with sleep, steps, cycle, mood and GLP-1 medication.
That is what turns a macro log into a decision. Protein has been under target four days running and the lean trend is drifting down — the first fix is protein at breakfast, not fewer calories. An app that only knows grams cannot write that sentence.
Logging the meals that break macro tracking
AI Food Scan (HAVIT Premium) turns a photo into an estimated calorie and macro breakdown — the stir-fry, the home-cooked stew, the plate someone else served you.
The database behind it is drawn from public food authorities rather than user uploads.
Body composition, not just weight
HAVIT estimates fat and lean trends with no hardware.
In an internal comparison study (n=70), 92.9% of HAVIT's body-fat estimates fell within ±5 percentage points of InBody readings.
It is an estimate for wellness tracking, not a medical, DEXA or InBody measurement — read it as a trend over weeks.
On GLP-1 therapy this matters more: the lean-mass share of weight lost has been reported at 40–60% in some trials and 15% or less in others. Dose, side effects and protein are logged in the same app.
Where HAVIT is not the best pick
If you want every micronutrient tracked from verified data, Cronometer goes deeper.
If you want an algorithm whose whole job is to recalculate calorie and macro targets every week from your weigh-ins, MacroFactor and Carbon are built for exactly that.
HAVIT's case is protein-first macros connected to body composition and the rest of your day — not the most granular macro spreadsheet.
Run check 1 on HAVIT, too: the free tier logs meals and shows calories per meal, but the carbohydrate, protein and fat analysis is part of HAVIT Premium.
If free gram-level macro targets are the deciding factor, Cronometer is the better pick.
Who it suits: people losing weight who care whether it is fat or lean mass; people on a GLP-1 whose appetite makes protein hard; people who want macros, sleep and cycle read together instead of in four apps.
03
MacroFactor — targets that adapt to your data
| Maker | Stronger By Science Technologies |
| Price | Subscription · 7-day trial, no free tier |
| App Store (US) | 4.8 (23,247 ratings) |
What it does well. An algorithm estimates your energy expenditure from your own intake and weight trend and adjusts your calorie and macro targets as you go.
Barcode scanning and AI photo logging are both in. For a deliberate cut or bulk, this is the strongest pure macro engine on the list.
Where it falls down. There is no free tier — the listing says it plainly. It also works from scale weight; body composition and sleep are outside its view.
Who it suits: people running a structured cut or bulk who want the math handled and will pay for it.
04
Cronometer — the most generous free macro targets
| Maker | Cronometer Software Inc. |
| Price | Free · Gold subscription |
| App Store (US) | 4.8 (99,448 ratings) |
What it does well. Macro and micronutrient targets are customizable on the free tier (per Cronometer's 2022 free-features post), the barcode scanner is free, and entries come from curated, verified sources.
If you want gram-level protein targets without paying, this is the clearest yes in the category.
Where it falls down. Photo and voice logging, the fasting timer and day-by-day macro scheduling are Gold features, and the free tier carries ads.
Logging mixed home cooking takes more manual work.
Who it suits: people who want precise macro and micronutrient numbers and are happy to enter food by hand.
05
MyFitnessPal — the biggest database, custom macros on Premium
| Maker | MyFitnessPal, Inc. |
| Price | Free · Premium · Premium+ |
| App Store (US) | 4.7 (2,378,163 ratings) |
What it does well. The largest food database in the category — chain restaurants, obscure brands, foreign products.
In March 2026 it announced that it had acquired Cal AI, and the app now has GLP-1 dose logging and reminders.
Where it falls down. Macro tracking with custom goals — including viewing macros in grams — the barcode scanner and meal scan are Premium features.
Much of the database is user-submitted, so one product can appear at several values.
Who it suits: people who eat a lot of packaged and restaurant food and are willing to pick entries carefully.
06
Carbon Diet Coach — weekly macro check-ins
| Maker | Reform, LLC |
| Price | Subscription only |
| App Store (US) | 4.8 (8,110 ratings) |
What it does well. Sets a macro plan and adjusts it at weekly check-ins based on your results, including when you stall. Barcode scanner included.
Where it falls down. No free tier found on the store listing or the official pricing page. Like MacroFactor, it reasons from scale weight rather than body composition.
Who it suits: people who want a coach-style weekly adjustment and do not want to set numbers themselves.
07
Lose It! — simple, but macros are a Premium feature
| Maker | FitNow, Inc. |
| Price | Free · Premium |
| App Store (US) | 4.8 (781,112 ratings) |
What it does well. Very simple calorie logging on the free tier, and a long track record. GLP-1 medication logging was added recently.
Where it falls down. For a macro search this is the catch: macro tracking and macro targets, the barcode scanner and photo logging are all listed under Premium.
Who it suits: people who mostly want a calorie budget and are fine paying for macros later.
08
Side by side
Free and paid features below were read from each app's App Store listing and official help pages.
| App | Macro targets | Photo logging | Body composition | GLP-1 logging | Free tier |
|---|---|---|---|---|---|
| HAVIT | Protein-first analysis (Premium) | AI Food Scan (Premium) | Estimated (free) | Yes (free) | Free: meal logging, calories, body-comp estimate, coach chat (daily limit) · Premium: macros, AI Food Scan |
| MacroFactor | Adaptive, from your data | Yes | No | Not listed | No (7-day trial) |
| Cronometer | Custom, free | Gold | No | Not listed | Yes |
| MyFitnessPal | Custom goals: Premium | Premium (meal scan) | No | Dose log + reminders | Yes, with ads |
| Carbon | Weekly check-ins | Not listed | Not listed | Not listed | No |
| Lose It! | Premium | Premium | No | Yes | Yes (calorie logging) · macros in Premium |
App characteristics as of October 2026, from App Store listings and official help pages; HAVIT per its default settings. Plans change often — check the store listing before you subscribe.
09
Setting macros that hold up
Set protein first, in grams.
Then split the remaining calories between carbohydrate and fat however you like eating.
Know what the 1.6 g/kg figure means.
In a meta-analysis of 49 trials, healthy adults building muscle with resistance training saw no clear extra gain from protein beyond about 1.6 g per kg of body weight per day (about 0.7 g per pound; the upper 95% confidence limit was 2.2 g/kg). That is not a ceiling for a weight-loss phase — work out your target with your doctor or a dietitian.
Spread it across meals.
A low-protein breakfast is the most common gap, and the easiest one to close.
Lift something.
Protein protects muscle best alongside resistance training.
Judge by the trend.
If weight falls but the lean trend falls with it, fix protein and training before cutting calories further.
On a GLP-1, talk to your clinician about your protein target — appetite is lower, and the target matters more.
For a starting point, see our macro ratio guide by body-composition goal and protein tracking on GLP-1.
10
The bottom line
A macro app that only checks three numbers against a target is half a tool.
Put protein first, in grams, and choose an app that can show you whether the weight you are losing is fat or lean mass.
If you want the strongest pure macro algorithm, MacroFactor. If you want free gram-level targets and micronutrients, Cronometer.
If you want protein-first macros read next to body composition, sleep, cycle and medication by one coach, HAVIT (its macro analysis is part of HAVIT Premium).
Frequently asked questions
What is the best macro tracking app?
Is there a free macro tracker app?
Should I track macros in grams or percentages?
How much protein should I aim for?
Can a macro app tell me if I am losing fat or lean mass?
What is HAVIT?
HAVIT is an AI health partner built on metabolic science — it protects your muscle, wakes up your metabolism, and helps you keep a healthy, rebound-free body for the long run.
Unlike calorie-only trackers, HAVIT connects AI body-composition estimates, nutrition, hydration, sleep, steps, cycle, mood, and GLP-1 medication in one daily routine — so progress is measured by body composition, not just the number on the scale. Daily missions turn established behavior-change techniques into small repeatable actions, drawing on expertise from professionals formerly at Juvis Diet, one of Korea’s leading metabolic clinics.
In HAVIT’s own analysis of 1,090 GLP-1 users, people who logged consistently built stronger habits than the general user base. Read the GLP-1 Habit Report
Inside the app
- AI COACHA coach that reads your day.
- NUTRITIONLog meals in seconds.
- BODY INSIGHTSSee more than weight.
- DAILY MISSIONSBuild habits you can repeat.
- DAILY CHECK-INTell HAVI how today feels.
- TRACK EVERYTHINGFrom water to GLP-1
- MIND & RECOVERYFor the days willpower runs out.
HAVIT works with or without GLP-1 medication. It is a wellness app, not a medical device; body-composition results are estimates.
Continue in the App
Personalized wellness with your own data
References
- A systematic review, meta-analysis and meta-regression of the effect of protein supplementation on resistance training-induced gains in muscle mass and strength in healthy adults (Morton et al.) pubmed.ncbi.nlm.nih.gov
- Changes in lean body mass with GLP-1-based therapies and mitigation strategies (Neeland et al.) pubmed.ncbi.nlm.nih.gov
- MacroFactor — Macro Tracker (App Store) apps.apple.com
- Cronometer — free features cronometer.com
- Cronometer: Calorie Counter (App Store) apps.apple.com
- MyFitnessPal Premium myfitnesspal.com
- Carbon — Macro Coach & Tracker (App Store) apps.apple.com
- Lose It! – Calorie Counter (App Store) apps.apple.com
- MyFitnessPal Acquires Cal AI To Expand AI-Powered Nutrition Tracking Portfolio pulse2.com
