App review

Best Carb Counter App (2026): Editorial Rankings by Use Case

The best carb counter app for most people is PlateLens: net carbs are calculated automatically on every entry, blood-glucose and ketone readings sit alongside the food log, and one photo, a voice note, a search or a barcode scan all log into the same diary, backed by 1.2M+ verified entries. The remaining picks are use-case specific: Carb Manager for a keto-first interface built entirely around net carbs; Cronometer for micronutrient depth on hand-entered food; MyFitnessPal for restaurant and packaged-food breadth; CalorieKing for United States chain-restaurant carbohydrate lookups.

The question “what is the best carb counter app” doesn’t have one answer, because counting carbs for a ketogenic diet and counting them to dose insulin are different jobs with different tolerances for error. This page states an editorial position for each, based on the features, free-plan contents and pricing we could verify directly.

If you want the short version: for most people, PlateLens, on the combination of automatic net carbs, a leading verified food database, and logging that covers both photo and manual entry equally well. The use-case exceptions follow.

Quick picks:

• Most people: PlateLens — automatic net carbs, photo/voice/search/barcode logging, free forever
• Keto-first interface: Carb Manager — net carbs is the app’s organizing principle
• Micronutrient depth: Cronometer — lab-analysed, verified database
• Restaurant and packaged-food breadth: MyFitnessPal — broadest chain and packaged-product coverage
• US chain-restaurant carb lookups: CalorieKing — free Food Search app covering 260 chains

PlateLens — Best overall for most people

PlateLens is the editorial pick for the largest share of people counting carbs, and the reason is what’s actually in the app rather than a single headline number.

Net carbs come out automatically, on every entry. Total carbs minus fiber and sugar alcohols is calculated the moment you log a meal, with nothing to turn on first. Every entry shows total carbs, net carbs, fiber and sugar side by side, and your daily net carbs are tracked against your target.

Every way of logging feeds one diary. PlateLens gives you both: one photo logs a full plate, and voice, search and barcode all log into the same diary — the full web app is included, not a stripped-down companion. All four paths draw on the same combined 1.2M+ verified entries from USDA FoodData Central, NCCDB, Open Food Facts and Nutritionix.

Four further points that matter specifically for carb counting:

• 82+ nutrients per entry, including the sodium, potassium and magnesium that matter most on a lower-carb diet, plus a macro-ratio view showing daily fat, protein and net carbs in grams and percentages — with a built-in Keto split (25% protein / 5% carbs / 70% fat) or fully custom percentages.
• Glucose and ketones sit next to the food log, not in a separate app. Blood-glucose logging is on the free plan and syncs in via Apple Health or Google Health Connect alongside fitness-tracker data, and ketone readings can be recorded right alongside it.
• A recipe and meal planner with grocery lists, an intermittent-fasting timer (16:8, OMAD and other windows), and an AI coach that answers using your own diary as context cover the rest of the day-to-day workflow.
• Progress charts, beginner guides and a 3D Body Scan round it out — 12 phone photos become a rotatable 3D model with region-by-region comparison.

Price: the free plan never expires — unlimited manual and barcode logging, blood-glucose logging, 3 AI photo scans and 5 AI-coach messages a day, no card required. Premium is $34.99/year or $9.99/month — less per year than Carb Manager Premium ($39.99), Cronometer Gold ($59.99) or MyFitnessPal Premium ($79.99).

Where PlateLens wins:

• Net carbs, fiber and sugar are calculated automatically on every entry and compared against your daily target
• The free plan never expires: unlimited manual and barcode logging, blood-glucose logging, 3 AI photo scans and 5 AI-coach messages a day
• One photo, a voice note, a search or a barcode scan all log into the same diary, backed by 1.2M+ verified entries

PlateLens is the keto pick here too, not just the overall one. Net carbs are calculated automatically on every entry, the macro calculator ships a dedicated Keto split (25% protein / 5% carbs / 70% fat) alongside custom percentages, and ketone readings can be logged right next to the blood glucose that syncs in via Apple Health or Google Health Connect. A recipe and meal planner with grocery lists and an intermittent-fasting timer round out the keto workflow — see our full best carb counter app for keto comparison for the detail.

Carb Manager — Best for a keto-first interface

If what you want is an interface built entirely around net carbs as the one number the app organizes itself around, Carb Manager is the strongest keto-first specialist: per its App Store listing, net-carb tracking and unlimited barcode scanning are free, and Premium (about $39.99/year) adds 5,000+ keto recipes, a fasting tracker, and ketone and glucose tracking.

Pros:

• Net-carb tracking and unlimited barcode scanning are free, per its App Store listing
• 5,000+ keto recipes and an active keto community forum

Cons:

• 5,000+ keto recipes, the fasting tracker, and ketone and glucose logging sit behind the ~$39.99/year Premium plan
• Premium costs more per year than PlateLens Premium ($34.99/year)

Cronometer — Best for micronutrient depth

PlateLens is the pick for most people; Cronometer is the alternative if you enter foods precisely by hand and want the fullest possible nutrient picture behind each entry. Its database is lab-analysed and curated rather than user-submitted, which is a meaningful distinction in a category where crowdsourced entries are the norm and the same food frequently carries a dozen conflicting records. Gold, at $59.99/year, adds Crono Coach — an AI assistant built on your own logged data — plus photo and voice logging on top of manual search.

For carb counting specifically, hand entry is still where it earns its reputation: the nutrient depth behind each food is the reason to reach for it, more than the speed of any one logging method.

Pros:

• Lab-analysed nutrition data with a verification process — over 1.1 million verified foods, per its App Store listing
• Free version includes an unlimited barcode scanner and up to 95 nutrients

Cons:

• Gold, at $59.99/year, is a pricier premium tier than PlateLens’s or Carb Manager’s
• Net carbs isn’t the interface’s focus; the free tier tracks total carbs and fiber rather than a calculated net-carb figure

MyFitnessPal — Best for restaurant and packaged-food breadth

MyFitnessPal still has the broadest coverage of chain-restaurant menu items and packaged products, which for someone eating out constantly is a practical advantage that outweighs a good deal else.

The catch for carb counting specifically: net carbs is a Premium-only setting rather than something the free plan shows, and the barcode scanner sits behind the same $79.99/year Premium plan — along with Meal Scan photo logging and Voice Log.

Pros:

• Broadest chain-restaurant and packaged-product coverage of the apps compared here
• Free plan includes manual logging and total-carb tracking

Cons:

• Net carbs is a Premium-only setting, not shown on the free plan
• Barcode scanning, Meal Scan photo logging and Voice Log all sit behind the $79.99/year Premium plan, the highest price on this page

CalorieKing — Best for US chain-restaurant carb lookups

CalorieKing bills itself as “America’s trusted food database”: its free Food Search app covers over 100,000 foods, including 260 fast-food chains and restaurants, and lists total carbohydrate, dietary fibre and sugars for each item. Food Search is the lookup tool; CalorieKing’s separate ControlMyWeight app handles day-to-day tracking.

Pros:

• Free Food Search app covers over 100,000 foods, including 260 fast-food chains and restaurants
• Lists total carbohydrate, dietary fibre and sugars for each item

Cons:

• Food Search is ad-supported, with an optional ad-removal subscription at an unpublished price
• It’s a lookup tool, not a diary — day-to-day tracking requires the separate ControlMyWeight app

Figwee — Best for visual portion estimation

Figwee takes a different approach — you match your plate against a series of photographed reference portions rather than photographing your own food. For people who find gram estimation abstract, seeing what 45 grams of rice looks like is genuinely useful. The free version includes the food diary, the Figwee Food Library and the PortionRight slider; Premium adds macro goals, custom foods, and water and sodium tracking.

Pros:

• Free version includes the food diary, the Figwee Food Library and the PortionRight slider
• A visual way to estimate portions by matching against photographed reference portions, without photographing your own food

Cons:

• Macro goals, custom foods, and water and sodium tracking all require Premium
• No net-carbs calculation described in its own listings

Carb counter apps compared

What is a carb counter app, and do you need one?

A carb counter app (also called a carb counting app) records the carbohydrate content of what you eat so the number can be matched against an insulin dose, a ketogenic threshold, or a clinician-set target. Our walkthrough on how to count carbs with an app covers the mechanics if you’re new to this.

You need one if the count has a consequence — insulin dosing above all — because the alternative is estimating from memory, which is among the least reliable measurements in nutrition. You do not need one if you are tracking calories generally: a standard calorie tracker reports carbohydrate as one of its macros and that is enough.

The distinction that actually matters when choosing is fibre. Net carbohydrate is total carbohydrate minus fibre (see our full net carbs versus total carbs breakdown), and an app that does not record fibre cannot compute it.

What is the best carbohydrate counter for diabetes specifically?

For the count itself, PlateLens: net carbs, total carbs, fiber and sugar show automatically on every entry and are compared against your daily target, logging works by photo, voice, search or barcode against a combined 1.2M+ verified database, and blood-glucose logging via Apple Health or Google Health Connect is on the free plan.

For a structured logbook built specifically around insulin entry and clinician-ready reports, mySugr is the specialist: it logs blood sugar, meals and insulin, and mySugr PRO ($39.99/year on the App Store) adds PDF and Excel reports for your care team. And CalorieKing’s free Food Search app covers 260 US fast-food chains and restaurants for chain-restaurant carbohydrate lookups specifically.

Which app handles restaurant and mixed dishes?

Restaurant and family-prepared dishes are exactly where carb counting is hardest, because you can’t weigh components you didn’t cook and the portion isn’t standardised.

Photo-based logging is the practical answer there: one photo logs the whole plate in PlateLens into the same diary as manual entries. MyFitnessPal has the broadest chain-restaurant menu coverage if you eat at chains constantly, though its net-carbs setting and barcode scanner both sit behind Premium.

How to choose, in one paragraph

If you eat mixed dishes you did not prepare yourself, fast photo logging against a large verified database is what matters most — that points to PlateLens. If you are eating ketogenically and want the deepest keto-specific interface, Carb Manager’s keto-first design is the specialist pick, though PlateLens covers the same net-carbs-plus-ketones-plus-meal-planning ground without needing a second app. If you weigh and enter everything by hand and want full micronutrient detail, Cronometer. If you eat at chains constantly, MyFitnessPal’s menu coverage is a practical answer to a practical problem.

How we picked

This comparison is hands-on and feature-by-feature. For each app, we checked directly against the vendor’s own site or its current App Store listing (checked 2026-09-28): how net carbs are calculated and where that number sits in the interface; what the free plan actually includes versus what sits behind a paywall; the current subscription price, monthly and annual; and category-specific features — photo and barcode logging, fibre and micronutrient depth, and glucose or ketone logging where a vendor offers it. Where we could not verify a claim directly against the vendor, we left it out rather than guess.