Written by Tou Calo Nutrition Team · Vulcan Labs · Updated August 2026. App features and pricing verified against official App Store listings and product pages. Tou Calo is published by Vulcan Labs — we include it in this list and have noted this clearly.
The best carb counting app depends on one thing: why you are counting carbs. Keto followers need net carbs front and centre. People managing diabetes need glucose integration or bolus calculator support. General low-carb dieters need a fast, accurate food database. These are different requirements, and most apps are genuinely better at one than the others. This guide ranks 7 carb counting apps by goal — with honest notes on free tier limits, what each does well and where each falls short.
Quick picks by goal:
AI photo logging (fastest): Tou Calo · Keto / net carbs: Carb Manager · Diabetes management: mySugr · Largest food database: MyFitnessPal · Micronutrient accuracy: Cronometer
Use our TDEE calculator to find your daily calorie and carb targets before choosing an app.
In this guide
Quick comparison — 7 carb counting apps at a glance
| App | Free tier | Net carbs | AI photo | Best for |
|---|---|---|---|---|
| Tou Calo | ✔ Full | ✔ | ✔ Free | Fastest logging — snap any meal, AI reads carbs instantly |
| Carb Manager | Limited | ✔ Default | Paid | Keto / strict low-carb — net carbs front and centre |
| MyFitnessPal | Limited | Paid only | Paid | Largest food database — best for branded and restaurant items |
| Cronometer | ✔ Good | Setting | ✗ | Micronutrient accuracy — best for detailed nutrition data |
| mySugr | ✔ Good | ✔ | ✗ | Diabetes management — bolus calculator, HbA1c estimate |
| Lose It! | Limited | Paid only | Paid | General calorie tracking — clean UI, easy to use |
| Glucose Buddy | ✔ Good | ✔ | ✗ | Diabetes all-in-one — manual glucose + carb logbook |
Each app reviewed
1. Tou Calo — best for AI photo logging (iOS, free)
Tou Calo uses AI to read a photo of your meal and return carbs, calories and macros in approximately 3 seconds — no barcode scanning, no manual entry and no food database browsing required. This is its primary differentiator: logging speed. For people who find manual food entry the main reason they stop tracking, the photo-first approach removes the friction entirely.
Net carbs, total carbs, protein and fat are all visible per meal on the free tier. There is no paywall for the core logging function. Tou Calo is iOS-only and is published by Vulcan Labs — the same team that publishes this article.
Best for: Anyone who wants to log carbs as fast as possible without manual entry.
Free tier: Full access to AI photo logging, macro tracking and daily summary.
Limitation: iOS only. Manual entry and barcode scanning are available but the app is optimised for photo logging.
Platform: iOS
2. Carb Manager — best for keto and strict low-carb
Carb Manager is the most mature keto app with a huge recipe library. Net carbs are front and centre, not buried in a sub-menu. The keto community features and recipes are its strongest differentiator. For anyone on strict keto (under 20–30g net carbs per day), having net carbs as the default display — rather than having to navigate to it — makes a meaningful difference to daily usability.
Best for: Keto and strict low-carb dieters who need net carbs as the default metric.
Free tier: Basic tracking available; advanced features and AI logging behind paywall.
Limitation: Interface is heavily keto-oriented — less useful if you switch off keto. Micronutrient tracking is less detailed than Cronometer.
Platform: iOS and Android
3. MyFitnessPal — best for food database coverage
MyFitnessPal is renowned for its extensive food database, making it the go-to app for users looking to log obscure regional brands and restaurant items. If your carb counting involves a wide variety of packaged foods, restaurant meals or regional cuisine, MyFitnessPal’s database depth is unmatched. The trade-off is that net carb display and AI photo logging are locked behind the Premium subscription ($19.99/month or $79.99/year).
Best for: Users who eat a wide variety of packaged and restaurant foods.
Free tier: Total carbs only — net carbs and photo logging require Premium.
Limitation: Database includes user-submitted entries with variable accuracy. Free tier is ad-supported.
Platform: iOS and Android
4. Cronometer — best for micronutrient accuracy
Cronometer prioritises micronutrient tracking, providing users with detailed insights into their vitamin and mineral intake. Each user-submitted food item is vetted by staff, ensuring high accuracy. For anyone who wants carb counts they can actually trust — rather than database entries submitted by random users — Cronometer’s verified data is the strongest argument for choosing it over larger databases.
Best for: People who want accurate carb data and detailed micronutrient tracking.
Free tier: Full nutrition tracking including micronutrients — one of the most generous free tiers available.
Limitation: No AI photo logging. Interface is data-dense and less beginner-friendly.
Platform: iOS and Android
5. mySugr — best for diabetes management
mySugr is a solid diabetes-specific app with estimated HbA1c tracking and healthcare team report exports. It is built specifically for people managing blood glucose — with a bolus calculator, blood glucose log, estimated HbA1c and the ability to export reports for healthcare providers. For general carb counting without a diabetes context, it is more than needed. For diabetes management, it addresses requirements that general food trackers do not.
Best for: People managing type 1 or type 2 diabetes who need carb counting alongside glucose tracking.
Free tier: Core logging free; mySugr Pro unlocks bolus calculator and advanced reports.
Limitation: Not designed for general calorie or weight tracking — narrow use case.
Platform: iOS and Android
6. Lose It! — best for general ease of use
Lose It! is the cleanest general-purpose calorie and macro tracker on the market. Its interface is straightforward, setup is fast and the food database is solid for common foods. Net carbs are behind its paid plan, which limits its usefulness for strict low-carb tracking on a free tier. For users who want to track carbs as part of general calorie awareness without a specific keto or diabetes requirement, it is one of the most user-friendly options.
Best for: General calorie and carb awareness — users new to food tracking.
Free tier: Total carbs and calorie tracking; net carbs and photo logging require Premium (~$39.99/year).
Limitation: Net carbs locked behind paywall.
Platform: iOS and Android
7. Glucose Buddy — best for manual diabetes logging
Glucose Buddy is best for manual all-in-one logging and flexible reports for people who prefer a detailed logbook without photo-based logging. It combines carb counting, blood glucose logging, medication tracking and activity notes in a single manual logbook format — useful for people who want complete control over their data entry without AI or automated features.
Best for: Diabetes patients who prefer detailed manual logging over automated features.
Free tier: Core logging free; advanced reports available in Premium.
Limitation: No AI photo logging or barcode scanning. Manual-only entry.
Platform: iOS and Android
Track meals in 3 seconds — just snap.
AI reads your plate and logs every calorie and macro instantly. Free on iOS.
How to choose the right carb counting app
| Your goal | Best pick | Why |
|---|---|---|
| Fast, frictionless logging | Tou Calo | AI photo logging — no manual entry needed |
| Strict keto (under 20–30g net carbs) | Carb Manager | Net carbs default, keto recipe library |
| Diabetes management | mySugr | Bolus calculator, HbA1c tracking, healthcare exports |
| Branded / restaurant foods | MyFitnessPal | Largest food database available |
| Data accuracy + micronutrients | Cronometer | Staff-verified database, detailed nutrition breakdown |
| New to tracking — simple start | Lose It! | Clean UI, fast setup, beginner-friendly |
Before choosing an app, use our TDEE calculator to find your daily calorie and carbohydrate targets. Knowing your numbers first makes the app choice more useful — you are matching a tool to a specific daily goal rather than tracking without a target.
Carb counting apps — FAQ
What is the best free carb counting app?
For free AI photo logging with no paywall, Tou Calo (iOS) is the strongest option — you can snap any meal and get carbs, calories and macros without manual entry on the free tier. Cronometer offers the most generous free tier for manual logging with verified nutrition data. For keto specifically, Carb Manager and CarbMeNot both display net carbs by default on their free tiers — better than MyFitnessPal and Lose It!, which lock net carbs behind paid plans.
What is the best carb counting app for diabetes?
mySugr is a solid diabetes-specific app with estimated HbA1c tracking and healthcare team report exports, making it well suited for people who manage diabetes and want to share carb and glucose logs with their care team. Glucose Buddy is a good alternative for people who prefer manual all-in-one logging. For AI-assisted meal estimation alongside a separate glucose monitoring solution, Tou Calo’s photo logging speeds up the carb identification step significantly.
What is the best app for counting net carbs on keto?
For strict keto under 20–30g net carbs per day, Carb Manager is the strongest pick — net carbs are front and centre by default, not buried in a sub-menu, and the keto recipe library is the largest available. CarbMeNot is a strong free alternative with AI photo logging on its free tier. MyFitnessPal and Lose It! can count net carbs but lock the display behind their paid tiers.
Do carb counting apps work for low-carb diets that are not keto?
Yes — any of the apps listed work for general low-carb diets. The distinction between keto-specific apps and general trackers matters most for strict net carb limits. If you are following a moderate low-carb approach (100–150g carbs per day) rather than strict keto, a general tracker like Tou Calo, Cronometer or Lose It! is sufficient without needing a keto-specific interface. Use our calorie deficit calculator to set your daily targets first.
How accurate are carb counting apps?
Accuracy varies significantly between apps and depends on two variables: the quality of the food database and the accuracy of your portion size estimate. Cronometer’s staff-verified database is the most reliable for individual food entries. MyFitnessPal’s user-submitted database is extensive but contains inaccurate entries. AI photo logging (Tou Calo) provides estimates based on visual portion size — useful for speed but carries inherent estimation variance. For the highest possible accuracy, weigh food with a kitchen scale and use a verified database. For day-to-day practical tracking, AI photo estimation is accurate enough for most purposes.
Disclosure: Tou Calo is published by Vulcan Labs, the same team that publishes this article. All other apps listed are third-party products included on the basis of category relevance. App features and pricing are based on publicly available information as of August 2026 and may change.
Written by Tou Calo Nutrition Team — Vulcan Labs
The team behind Tou Calo AI Calorie Counter.
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