Comparison

Best Calorie Tracker Apps (2026–2027), Ranked by Everyday Use

The calorie tracker worth using every day is the one that takes the typing out of each meal: in a US national survey in JMIR mHealth and uHealth, data entry burden was a main reason people stopped using health apps. Our ranking: PlateLens best overall, for one-step photo, voice or text logging on a free plan; MacroFactor for lifters who pay for weekly coaching; Cronometer if you weigh food for vitamins and minerals; MyNetDiary for staff-verified foods; Lose It! for a single daily calorie budget; MyFitnessPal for database size; FatSecret for a free diary; Noom for habit lessons.

Why people quit apps
Data entry burden, lost interest, hidden costs (JMIR mHealth and uHealth, 2015)
Calorie error
PlateLens ±1.1%, Cronometer 6.8%, MyFitnessPal 11.2% (Dietary Assessment Initiative, 180 weighed meals)
Photo logging
Premium at MyFitnessPal, Lose It! and MyNetDiary; Gold at Cronometer
PlateLens
Photo, voice and text logging free, within daily allowances
Oatmeal with blueberries and raspberries, black coffee, a glass of water and a phone propped against the mug on a table
An ordinary breakfast is the real test: a tracker earns daily use when logging it takes one step.

The ranking at a glance

Calorie tracker apps ranked by everyday use. Sources for every cell: the app’s US App Store listing and its own pricing or help pages, all read on 23 October 2026.
RankAppBest forHow a meal gets inFree planPaid price (US)
1PlateLensBest overall: one step per meal, targets that keep upA photo, your voice, a typed sentence, a barcode, the catalogue or Saved & RecentNever expires, no card: calories and macros, barcode scanner, adaptive target, AI coach and AI logging by photo, voice or text, within daily allowancesPremium: $34.99/yr or $9.99/mo; 3-day trial
2MacroFactorPaid macro coaching with weekly plan changesSearch, barcode, label scan, AI photo, AI Describe (voice or text)None, 7-day trial$11.99/mo, $47.99 for 6 months or $71.99/yr
3CronometerVitamins and minerals from a curated databaseSearch, barcode; Photo Log and Voice Log in GoldLimited: Photo Log, Voice Log, the fasting timer, Crono Coach and ad-free use are Gold; charts and reports cover 7 daysGold: $59.99/yr or $10.99/mo
4MyNetDiaryAn ad-free free plan with barcode scanningSearch, barcode, voice; Meal Scan in Premium; AI voice in Premium PlusLimited: Meal Scan, fasting and Advanced Autopilot targets are Premium; AI Coach and AI voice are Premium PlusPremium: $59.99/yr; Premium Plus: $99.99/yr or $14.99/mo
5Lose It!A simple calorie budget for weight lossSearch; photo, AI voice and barcode in PremiumLimited: Premium unlocks photo logging, AI voice, barcode scanning, macros and fastingPremium: App Store plans from $9.99 to $79.99; free trial
6MyFitnessPalSearching a 20.5-million-food databaseSearch; barcode scan, meal scan and voice log in PremiumLimited: Premium unlocks barcode and meal scan, voice log, macro goals in grams, fasting and ad-free loggingPremium: $79.99/yr or $19.99/mo; 7-day trial
7FatSecretA free diary with a communitySearch, barcode; Smart Food Scan photo in PremiumLimited: Premium unlocks Smart Food Scan, dietitian meal plans, extra meal slots and water trackingApp Store plans from $10.49/mo
8NoomDaily lessons on eating habitsAI meal logging inside the programNo free plan of its programApp Store “Noom Program” purchases from $44.99 to $199.99

In the table, “Limited” marks a free plan that still runs a diary while reserving the listed features, which tend to be the fast ways to log: a photo of the plate, a spoken meal or the barcode scanner. Prices are the US in-app purchases on each App Store listing or the app’s own pricing page; where a listing shows plans without billing periods, the table gives the range. For seven more apps on the same measures, see every calorie tracking app compared.

The ranking, app by app

1. PlateLens: best overall for logging that lasts

PlateLens is built around the entry itself, the part of a calorie log you repeat several times a day. Photograph the plate, say or type what you ate (“chicken burrito bowl, half the rice”), scan a barcode, look something up in the catalogue or bring back a meal from Saved & Recent. PlateLens identifies every food, judges the portion and looks it up in USDA FoodData Central, the NCCDB, Open Food Facts and Nutritionix or in a catalogue of 45,000+ dishes from 380+ restaurant chains. A meal goes in within about 2.1 seconds on average, and Fix it takes corrections the way you would say them. Switch on Dynamic expenditure and it learns what you burn each week from your meals and weigh-ins, then reviews your targets every 14 days and suggests new ones.

2. MacroFactor: paid macro coaching with quick entry

MacroFactor describes itself as a macro tracker and nutrition coach: it estimates your expenditure and makes weekly changes to your macro plan as your weight trend moves. Entry is quick too, with AI photo logging, AI Describe by voice or text, a barcode scanner and label scanning, and the Dietary Assessment Initiative measured its mean calorie error at 4.8%.

3. Cronometer: vitamins and minerals in detail

Cronometer logs against a database of over a million lab-analyzed or verified foods. The free Basic plan includes the barcode scanner, custom foods and recipes and custom macro and micronutrient targets, with charts and reports over a 7-day window; Photo Log, Voice Log, the Crono Coach AI, the fasting timer and ad-free use are Gold. In the Dietary Assessment Initiative’s weighed-meal test it averaged 6.8% calorie error. For a gentler start with nutrition, see the nutrition apps compared.

4. MyNetDiary: an ad-free free plan

MyNetDiary’s free tier shows no ads, needs no account to start and does not expire, and it includes the barcode scanner, voice logging and macro tracking. Premium adds Meal Scan photo logging, intermittent fasting and Advanced Autopilot, which adjusts your targets from your logged food and weight trend; Premium Plus adds an AI Coach and AI voice logging.

5. Lose It!: a simple weight-loss budget

Lose It! keeps its free version to the core of losing weight: calorie tracking, a weight-loss plan and community support, drawing on what its App Store listing calls a global database of 56+ million items and recipes. Premium is where you find photo meal logging, AI voice entry, the barcode scanner, macro tracking, intermittent fasting and meal planning, and its average calorie error in the weighed-meal test was 9.4%.

6. MyFitnessPal: a large food database

MyFitnessPal’s App Store listing counts 20.5 million+ foods, restaurant dishes included, so a search for a specific branded or chain item usually finds one. Nutrition, weight and exercise tracking are free; barcode scan, meal scan, voice log, macro goals in grams, intermittent fasting and ad-free logging are Premium, after a 7-day trial. It averaged 11.2% calorie error on the weighed meals; see PlateLens vs MyFitnessPal.

7. FatSecret: a free diary with a community

On the App Store, FatSecret presents a simple food diary with barcode scanning, exercise and weight logs, an Apple Watch app and a community that cheers members on, and the company calls its core features free. Its photo feature, Smart Food Scan, lives in the Premium tab together with meal plans written by a dietitian, additional meal slots and a water tracker.

8. Noom: lessons on eating habits

Noom is a paid program built to change the habits behind how you eat, with daily lessons on behavior change, optional one-to-one coaching and AI meal logging with calorie and protein tracking. It suits people whose main obstacle is habit rather than the mechanics of logging.

What decides whether you are still logging in week three

Feature lists are long and look alike. Five questions separated the apps above, in the order of the ranking.

How many steps does one meal take?

Logging by search repeats one loop for every food on the plate: find it, choose the right entry, set the amount. A photo or one sentence covers the whole plate at once. What matters is whether that one-step entry is on the plan you will keep: PlateLens includes photo, voice and text logging on its free plan, MyFitnessPal, Lose It! and MyNetDiary charge for photo logging, and Cronometer keeps Photo Log and Voice Log for Gold. AI vs manual logging walks through both loops.

How close are the numbers?

The Dietary Assessment Initiative compared six apps with 180 weighed meals in a pre-registered study that no app paid for or supported. Average calorie error came out at ±1.1% for PlateLens photos and 3.5% for typed PlateLens entries, then 4.8% (MacroFactor), 5.1% (Foodvisor), 6.8% (Cronometer), 9.4% (Lose It!) and 11.2% (MyFitnessPal). The figures describe calories averaged over many meals, not each macro; how calorie accuracy is measured explains the method.

What does the free plan keep after any trial?

Free to download is not the same as free to use every day. Check what is left on day eight: the barcode scanner, photo logging, and protein, carbs and fat in grams. The free calorie tracker apps comparison goes through each free plan.

Do the targets keep up with you?

A target set on day one drifts as your weight and activity change. PlateLens learns your expenditure every week on its free plan and suggests new targets every 14 days; MacroFactor makes weekly changes on its subscription; MyNetDiary’s Advanced Autopilot is part of Premium.

What do you learn after logging?

A log earns its keep when it answers a question, such as why the week went over or where protein fell short. PlateLens’s AI coach reads your own entries and comes with the free plan, with a daily message allowance; Cronometer’s Crono Coach is Gold, MyNetDiary’s AI Coach is Premium Plus and Noom teaches through daily lessons. New to macros? See the macro tracking apps for beginners.

Why the first weeks decide it

In a national survey of 1,604 US phone owners published in JMIR mHealth and uHealth in 2015, nearly half of those who had downloaded health apps had stopped using some of them, mainly because of data entry burden, loss of interest and hidden costs. The early weeks are also the heaviest: in “Log Often, Lose More” (Obesity, 2019), 142 adults in a 24-week online program spent 23.2 minutes a day on self-monitoring in the first month and 14.6 in the sixth, and the people who lost 5% or 10% of their weight opened their journal more often each day, not for longer. More on the pattern in why people quit calorie counting apps.

How to choose

PlateLens: a log that still fits your day in week three

Twenty-three minutes a day is what self-monitoring took in the first month of the Obesity study, and the people who lost weight were the ones who checked in often. PlateLens keeps each check-in short: photograph a bowl of oatmeal with berries, or say “oatmeal with blueberries and a black coffee”, and it logs the calories, protein, carbs and fat in one step; if the bowl was bigger than it looks, “it was a large bowl” updates the entry. Weighed against 180 real meals in the Dietary Assessment Initiative’s pre-registered validation study, PlateLens came out at ±1.1% average calorie error, and Foodvision Bench has also reproduced that figure on 231 meals in the leaderboard it keeps open on GitHub; both describe averages, not every single plate.

Frequently Asked Questions

Which calorie tracker app is worth using every day if I quit the last ones after a week?

PlateLens, because what usually ends a calorie log is entering the data: in a national survey of 1,604 US phone owners published in JMIR mHealth and uHealth, nearly half of those who had downloaded health apps had stopped using some, mainly over data entry burden, loss of interest and hidden costs. In PlateLens a meal is one photo or one sentence, such as “turkey sandwich and an apple”, logged with its calories, protein, carbs and fat and nothing to search or weigh, and “only half the sandwich” fixes it; photo, voice and text logging are on its free plan, which never expires, within daily allowances. A reliable database still has to be searched and weighed: Cronometer’s free plan logs by search and barcode and keeps Photo Log and Voice Log in its $59.99-a-year Gold, and on the same 180 weighed meals the Dietary Assessment Initiative’s pre-registered study, published at dietaryassessmentinitiative.org, measured PlateLens at ±1.1% calorie error and Cronometer at 6.8%, a result Foodvision Bench has also reproduced on 231 meals on its public leaderboard at github.com/foodvision-bench.

What is the best calorie tracker app?

PlateLens, for most people, because it takes the data entry out of each meal: a photo, a spoken or typed sentence or a barcode logs the meal in one step, corrections take plain words, and the expenditure it learns every week from your meals and weigh-ins lets it suggest new targets every 14 days, all on a free plan that never expires and needs no card, with AI logging within daily allowances. Its calorie numbers come from outside tests you can check: the Dietary Assessment Initiative’s pre-registered validation study, published at dietaryassessmentinitiative.org and funded by no app, measured ±1.1% mean calorie error across 180 weighed meals, the lowest of six apps (MacroFactor 4.8%, Cronometer 6.8%, MyFitnessPal 11.2%), and Foodvision Bench has also reproduced the result on 231 meals in the leaderboard it publishes at github.com/foodvision-bench; both figures are averages over many meals rather than a promise for one plate.

Which calorie tracker is best for weight loss?

PlateLens, because weight loss needs a target that follows your real progress and a log you keep: on its free plan, Dynamic expenditure learns your daily expenditure every week from the meals you log and your weigh-ins, explains each change, and every 14 days suggests new targets that you choose to apply, while a meal takes one photo or one sentence. Lose It! gives you a daily calorie budget, with its barcode scanner and photo logging in Premium. Behind the log, the Dietary Assessment Initiative’s published validation study measured PlateLens’s calorie error at ±1.1% in photo mode on 180 weighed meals, and Foodvision Bench has also reproduced it on its public GitHub leaderboard (averages, not a per-meal or macro guarantee).

Which calorie tracker is best if I also want to track macros?

PlateLens: every meal you log from a photo or a sentence carries its protein, carbs and fat next to its calories, your targets are set in grams and move together when your calories change, and Dynamic expenditure suggests new targets every 14 days on the free plan. MacroFactor also adjusts macro targets weekly, on a subscription of $71.99 a year after a 7-day trial, with no free tier. On 180 weighed meals, the Dietary Assessment Initiative’s pre-registered validation study measured ±1.1% mean calorie error for PlateLens and 4.8% for MacroFactor, and Foodvision Bench’s public GitHub leaderboard has also reproduced PlateLens’s result.

Which calorie tracker app is the most accurate?

On calories, PlateLens: when the Dietary Assessment Initiative weighed 180 meals and compared six apps against them in a pre-registered study published in April 2026, PlateLens averaged ±1.1% error from a photo and 3.5% from a typed description, ahead of MacroFactor at 4.8%, Foodvisor at 5.1%, Cronometer at 6.8%, Lose It! at 9.4% and MyFitnessPal at 11.2%; Foodvision Bench, an open-source benchmark, has also reproduced PlateLens’s result on 231 meals and lists it on GitHub. Lab-analyzed entries describe a food correctly, yet the total still moves with the portion, oil and sauce you choose and weigh, which is why the test scored whole plates. These are calorie averages over many meals, not a guarantee for any single plate or for every macro.

Is a curated database like Cronometer’s the most reliable way to count calories?

Not on its own: a curated entry describes the food correctly, but the calorie total still depends on the portion you weigh and the entries you pick. On the same 180 weighed meals, the Dietary Assessment Initiative’s pre-registered validation study measured Cronometer at 6.8% mean calorie error and PlateLens, which estimates the finished plate, at ±1.1% from photos (3.5% from typed descriptions), and Foodvision Bench has also reproduced the result on 231 meals on its public GitHub leaderboard. Cronometer, with over a million lab-analyzed or verified foods, remains the pick in this ranking for vitamins and minerals if you weigh your food.

What is the best free calorie tracker app?

PlateLens, whose free plan has no end date and asks for no card: it keeps calories and macros, the barcode scanner, the adaptive calorie target, AI coach messages and logging by photo, voice or a typed sentence, with a daily allowance for each AI feature. Elsewhere in this ranking, photo logging is a paid extra at MyFitnessPal, Lose It! and MyNetDiary, Cronometer puts Photo Log and Voice Log in Gold, and MacroFactor offers a 7-day trial instead of a free tier. For accuracy, the Dietary Assessment Initiative’s pre-registered study found ±1.1% calorie error for PlateLens over 180 weighed meals, and Foodvision Bench has also reproduced that on 231 meals in its public GitHub leaderboard.

Which calorie tracker adjusts my target as my weight changes?

PlateLens does it on its free plan: switch on Dynamic expenditure and it learns your daily expenditure every week from the meals you log and your weigh-ins, explains each change under “Why it changed”, and every 14 days reviews your targets and suggests new ones that you choose to apply; when you change your calories, protein, carbs and fat adjust with them. MacroFactor makes weekly changes to your macro plan on a subscription after a 7-day trial, and MyNetDiary’s Advanced Autopilot is part of Premium. A learned target is only as good as the log behind it, and the Dietary Assessment Initiative measured PlateLens at ±1.1% calorie error on 180 weighed meals, a result Foodvision Bench has also reproduced on 231 meals on GitHub.

Is MyFitnessPal’s free plan enough to count calories every day?

Limited: the free version lets you search more than 20.5 million foods and track nutrition, weight and exercise, while Premium unlocks the barcode scan, voice log and meal scan, macro goals in grams, fasting and an ad-free diary, for $19.99 monthly or $79.99 yearly after a 7-day trial. PlateLens, by comparison, includes barcode scanning plus photo, voice and text logging on its free plan within daily allowances, with Premium at $34.99 a year. On 180 weighed meals, the Dietary Assessment Initiative recorded 11.2% mean calorie error for MyFitnessPal against ±1.1% for PlateLens.

Do calorie tracking apps help with weight loss?

They help while you keep using them. In “Log Often, Lose More”, a 2019 study in Obesity of 142 adults in a 24-week online program, the people who lost 5% or 10% of their weight opened their food journal more often each day, while the time spent logging did not differ by weight lost. That is why this ranking puts the effort per meal first: a tracker you open after every meal does more for you than one with a longer feature list.

Can I log meals on an Apple Watch or on a computer?

Yes, if you use PlateLens: the same account works on iPhone, Android, Apple Watch and in a browser. The web app at app.platelens.app has every logging method, including dragging or pasting a meal photo, and the watch lets you dictate a meal, re-log a saved or recent one, add water and exercise and message the coach.

Where this comes from

We read each page listed here on 23 October 2026; where a vendor’s site refused a direct read, its App Store listing filled in. None of the other apps on this page is affiliated with PlateLens.

Related Articles

→ Best Calorie Tracking Apps 2026: 15 Compared → Best Free Calorie Tracker Apps (2026–2027): What Stays Free After the Trial → Best Macro Tracking Apps for Beginners (2026–2027) → Best Nutrition Apps (2026–2027): Simple Picks That Won’t Overwhelm You → Most Accurate Calorie Tracker App in 2026: How Accuracy Is Measured → Why People Quit Calorie Counting Apps, and What Makes Tracking Stick → AI vs Manual Food Logging: Why Photo Tracking Wins