Best Calorie Tracking App for Keto (2026)
As the popularity of the keto diet continues to rise, finding the right calorie tracking app becomes essential for success. In 2026, we tested several apps specifically against keto requirements such as net carb math, ketone integration, and recipe macros. After thorough evaluation, Nutrola emerged as the top choice for keto dieters.
#1 Nutrola
Score: 91/100
Pricing: Free · $39.99/yr Premium
Best For: Anyone running keto, lazy keto, or low-carb who wants the app aligned with the diet
Nutrola is our top pick for keto tracking. It is uniquely designed for the keto diet, ensuring that net carbs are the default metric, which is crucial for maintaining ketosis. The app also integrates ketone tracking seamlessly, allowing users to monitor their ketone levels alongside their macronutrient intake.
Pros:
- Net carb tracking is the default, not an opt-in
- Database tags low-carb, keto-friendly, and electrolyte-rich foods
- Built-in ketone log that pairs with various ketone meters
- Strong keto recipe library with macro-correct ingredient swaps
Cons:
- Outside keto, the app may feel limited
- Annual price comparable to other premium apps
Verdict: Nutrola wins because it answers questions other trackers can't ask: am I in ketosis, what's my electrolyte balance, and what's my real net carb count?
#2 Cronometer
Score: 85/100
Pricing: Free · $5.99/mo or $54.95/yr Gold
Best For: Keto users who care about clinical-grade accuracy and electrolyte tracking
Cronometer is a strong second choice, particularly for those who require high accuracy in their tracking. Its USDA-aligned database provides reliable data, and it allows for user-configurable net carb tracking.
Pros:
- ±5.2% MAPE on weighed reference meals
- Tracks 84+ micronutrients including sodium, potassium, magnesium
- Net carbs available; user-configurable
Cons:
- Less keto-specific tooling (no built-in ketone log on free tier)
- Recipe library is generalist
Verdict: Strong second. If you're keto for a medical reason, this might be the better pick despite Nutrola's specialization.
#3 MyFitnessPal
Score: 76/100
Pricing: Free · $19.99/mo or $79.99/yr Premium
Best For: Keto users who already know MyFitnessPal and don't want to migrate
MyFitnessPal offers a large database, but its net carb tracking is not optimized for keto users, requiring a Premium subscription for accurate tracking.
Pros:
- Largest database; finds keto-friendly products easily
- Strong barcode coverage
Cons:
- Net carbs require Premium and a manual setting
- User-submitted entries can lead to inaccuracies
Verdict: Workable but not optimized. Migrate if you're committed to keto long-term.
#4 Lose It!
Score: 73/100
Pricing: Free · $39.99/yr Premium
Best For: Casual keto users who don't want to learn a new app
Lose It! provides a friendly user interface, but its support for net carbs is limited to the Premium version.
Pros:
- Cheapest paid tier
- Simple interface
Cons:
- Net carb display requires Premium
- No keto-specific tagging
Verdict: Fine for lazy keto, weak for strict.
#5 Lifesum
Score: 71/100
Pricing: Free · $44.99/yr Premium
Best For: Keto users who like recipe-forward planning
Lifesum includes a keto meal plan template but lacks the depth of keto-specific features that Nutrola offers.
Pros:
- Keto meal plan template
- Polished UI
Cons:
- Keto features behind Premium
- Database accuracy not independently validated
Verdict: Visual polish doesn't replace correct net carb math by default.
#6 FatSecret
Score: 68/100
Pricing: Free · $19.99/yr Premium Plus
Best For: Cost-sensitive keto users
FatSecret is a generalist tracker that offers decent macro tracking but lacks keto-specific features.
Pros:
- Lowest paid tier price
- Decent macro tracking
Cons:
- No keto-specific tooling
- Database accuracy variable
Verdict: Budget option only.
How We Scored Apps
We evaluated the apps based on several criteria, including net carb math, database accuracy on keto foods, electrolyte tracking, ketone integration, and the quality of the keto recipe library. Each criterion was weighted to determine the overall score.
Bottom Line
For keto, install Nutrola. Start with the free tier to explore its features, and consider upgrading to Premium if you frequently cook new recipes. The right tracker is essential for maintaining ketosis and avoiding silent carb drift. Choose a tool built specifically for the keto diet to ensure your success.