Last checked: September 27, 2026. Competitor features are taken from each app's own website or app store listing. Apps change often, so check the listing before you download.
What makes a good carb counter app
Most people who start counting carbs do not quit because the maths is hard. They quit because logging every meal takes too long. So the first thing to look for in a carb tracker app is speed: how many taps does it take to go from a plate of food to a carb number?
Beyond speed, a few things separate the good apps from the rest:
- Photo recognition. Home-cooked and restaurant meals have no label. An app that estimates carbs from a photo saves you from looking up every ingredient.
- Barcode scanning. For packaged food, looking up the product's nutrition data is usually more reliable than a photo estimate.
- A reliable food database. When you do search manually, verified entries matter more than a huge number of duplicates.
- Carb detail. Net carbs, fiber and glycemic index (GI) help you see not just how many carbs a meal has but how quickly it is likely to release its energy.
- Fit with your goal. A keto eater, someone losing weight and someone who just wants to eat more mindfully need different things. If you manage a medical condition, follow the carb guidance from your care team.
New to all of this? Our guide on how to count carbs covers labels, portions and GI before you pick an app.
The apps compared
Here are the seven carb counting apps we looked at. We list CarbScanner first because it is ours, and we have tried to be as honest about its limits as about everyone else's.
CarbScanner
CarbScanner is the app we make, so read this entry with that in mind. It is built for one job: counting carbs with as little effort as possible. Snap a photo of a meal and the AI identifies each food, estimates its carbs and shows a breakdown, plus a low, medium or high glycemic index rating for the meal. For packaged food you scan the barcode instead, and the app looks up the carbs per 100 g in the Open Food Facts database, so check that the serving size matches what you eat. You can adjust portion sizes so the estimate matches what is actually on your plate. It runs on iOS and Android.
Good for: People who want the carbs and a GI rating for a meal in a few seconds, low-carb eaters, keto eaters who are happy to count total carbs (the app shows total carbs, not net carbs), and anyone who gave up on manual food logging.
Keep in mind: It focuses on carbs and GI rather than being a full calorie and macro diary. Photo estimates of mixed dishes vary and may need adjusting, photo analysis and barcode lookups need an internet connection, and barcode coverage is best for common retail products.
Carb Manager
Carb Manager is a long-running keto and low-carb tracker. Its store listing mentions a database of more than 1 million foods, barcode scanning, net carb and macro tracking, and logging a meal by snapping a picture of your plate. Photo logging is part of Carb Manager's upgraded version, so it is not available in every version of the app. Its website also lists glycemic load tracking and a large library of low-carb recipes. It is available on iOS and Android, with a web dashboard.
Good for: Keto followers who want net carbs, recipes and a detailed daily diary in one place.
Keep in mind: There is a lot in the app, which is great for detail but means more screens between you and a quick carb number.
MyFitnessPal
MyFitnessPal is one of the best known calorie counters. Its listing mentions more than 20.5 million foods including restaurant dishes, barcode scanning, an AI Meal Scan feature, voice logging and a Net Carbs mode for low-carb eaters. It tracks calories and macros and connects with a wide range of fitness trackers. It is available on iOS and Android.
Good for: People who want calories, macros and exercise in one diary and value a very large food database.
Keep in mind: Carbs are one number among many here. We found no mention of glycemic index information in its listing.
Cronometer
Cronometer is known for detailed nutrition data. Its listing describes a curated database of more than 1.1 million verified foods, barcode scanning, photo and voice logging, and tracking of calories, macros, fiber and many vitamins and minerals. It runs on iOS, Android and the web.
Good for: People who care about micronutrients as much as carbs and like precise, verified food entries.
Keep in mind: The amount of data can feel like a lot if you only want a carb count. We found no glycemic index feature on its site.
SnapCalorie
SnapCalorie is a photo-first calorie tracker. Its listing says the AI analyzes your meal photo and measures portions, and it also offers voice logging, a nutrition label scanner and a database of more than 500,000 foods verified against USDA data. Its website lists barcode scanning among its logging methods. It tracks calories, carbs, protein, fat, fiber and sugar, and is available on iOS and Android.
Good for: People who like photo logging but want calories and a wide set of nutrients alongside carbs.
Keep in mind: It is a calorie tracker first, so the carb view is part of a bigger picture. We found no glycemic index information in its listing.
Cal AI
Cal AI is built around speed: snap a photo, scan a barcode or describe your meal, and it returns calories, protein, carbs and fat. Its website says it uses the phone's depth sensor to help estimate food volume. It is available on iOS and Android.
Good for: People who want quick calorie and macro estimates from a photo with minimal setup.
Keep in mind: It is aimed at calories and macros, with carbs as one of three macros. We found no glycemic index information on its site.
Foodvisor
Foodvisor lets you log a meal by photo, by voice, by barcode or by search. Its listing mentions tracking calories, macronutrients, vitamins and minerals, plus weight, hydration, fasting and activity. It is available on iOS and Android.
Good for: People who want a general nutrition and weight tracker with photo logging built in.
Keep in mind: Carbs are part of a broad nutrition overview rather than the focus. We found no glycemic index information in its listing.
Comparison table
Every app here now offers some form of photo logging and barcode scanning, so the real differences are in focus and detail. "Not listed" means we could not find the feature on the app's own website or store listing, not that it definitely does not exist.
| App | Photo AI | Barcode | GI info | Platforms |
|---|---|---|---|---|
| CarbScanner | Yes | Yes | Low, medium or high rating per meal | iOS, Android |
| Carb Manager | Yes, in upgraded version | Yes | Glycemic load listed | iOS, Android, web |
| MyFitnessPal | Yes | Yes | Not listed | iOS, Android |
| Cronometer | Yes | Yes | Not listed | iOS, Android, web |
| SnapCalorie | Yes | Yes | Not listed | iOS, Android |
| Cal AI | Yes | Yes | Not listed | iOS, Android |
| Foodvisor | Yes | Yes | Not listed | iOS, Android |
Feature availability can differ between versions of an app and changes over time, so check the store listing before you install.
Source: each app's own website and App Store or Google Play listing, last checked September 27, 2026.
Which app should you pick
Start with what you want to know after each meal, then pick the app that shows it with the least effort.
- You mainly want the carbs and GI of a meal, fast: CarbScanner. One photo gives you the carbs, an ingredient breakdown and a glycemic index rating for the meal. One barcode scan gives you the carbs of a packaged product.
- You follow keto and want recipes and net carbs in one diary: Carb Manager.
- You track calories and exercise and want the biggest database: MyFitnessPal.
- You care about vitamins and minerals as much as carbs: Cronometer.
- You want photo-first calorie tracking with carbs included: SnapCalorie or Cal AI.
- You want a general nutrition and weight tracker: Foodvisor.
Whichever app you choose, remember that every carb count is an estimate. Photo recognition is quickest for mixed meals, barcode scanning is most reliable for packaged food, and a quick check of the portion size improves both. Try an app for a week of normal meals: if logging still feels like a chore after that, it is the wrong app for you, however long its feature list.