The 9 Best Keto Diet Apps of 2021

These tools help you reach ketogenesis and stay there

A keto, or ketogenic, diet is one that focuses on consuming more fats and protein and far fewer carbohydrates. To do this, you need to keep track of your macros, or the macronutrients you eat. It can quickly get frustrating, especially if you're trying to track your food intake, plan meals, and stay on track at the grocery store. Fortunately, there are apps for that.

We reviewed dozens to find these top Keto diet apps to help you get and stay on track.

Talk to your doctor before starting any new diet, including keto.

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Best Overall Keto Diet Tracker: Carb Manager

Screenshots of the Carb Manager app.
What We Like
  • Multiple ways to log food.

  • Makes true net carb monitoring easy.

  • Can track calories, exercise, water, and many other things.

What We Don't Like
  • Premium version is pricey.

  • Barcode can sometimes be inaccurate.

  • User-entered foods aren't always correct.

Carb Manager is the best overall keto diet app, because it helps to demystify all that goes into keeping up with a keto diet. From helping you to find the right foods and recipes to creating shopping lists, syncing with your fitness tracker, and tracking over a million foods as well as your overall health activities, even the free version of this app is useful enough for most users.

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Best for Those Just Getting Started: Senza

Screenshots from the Senza app.
What We Like
  • Great for beginners who aren't sure how to start.

  • Plenty of educational resources so users understand the 'why' of keto dieting.

  • Live nutritionist and online coaching are available.

What We Don't Like
  • User-entered information isn't always accurate.

  • Visual graphs and percentages are not included and would be useful to some users.

If you're just getting started in a keto diet, Senza is the app for you. With a countdown to keto, tons of foods and recipes, and Keto Radar, which is a map that helps you find keto-friendly restaurants if you're dying to eat out, this is a great app to get you started. It also helps that there's lots of education to help you understand how keto diets work and live support if you need some help navigating the confusing world of keto.

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Best for the Socially Motivated: KetoDiet

Screenshots from the KetoDiet app
What We Like
  • Nutritional data is verified, not crowdsourced.

  • Your personal data isn't shared with others.

  • Facebook challenges and support group help the socially-minded.

What We Don't Like
  • Units of measure can be difficult to work with.

  • Can be difficult to report issues.

  • Many features hidden behind a paywall.

If you're socially-motivated, KetoDiet offers some nice features that will help you stay focused, including Facebook challenges and a Facebook group for support. It's also nice that this program lists 100 percent verified food, rather than crowdsourcing that information, so you always know you're getting the most accurate nutrition information. Add in plenty of educational content, recipes, and the standard tracking capabilities and this is a good app for staying keto-strong.

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Best for Those Seeking a Long-Term Solution: 8Fit

Screenshots of the 8Fit app.
What We Like
  • Lots of workouts and classes to choose from.

  • Customized meal plans that you can adjust based on your preferences.

  • Lots of educational content, videos, templates and more.

What We Don't Like
  • The subscription for this app is required to log meals.

  • No chart for weight measurements.

  • Food lists aren't organized well.

8Fit is not a keto-specific app, however, it does allow you to choose your food preferences and to track your macros just as you would with a keto-specific app. It's the additional features that make 8Fit worth trying. From customizable meal plans to thousands of recipes and a wide-variety of exercises and classes that help you keep your keto goals in mind, this app might be the one you're looking for.

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Best for Detailed Nutrition Information: MyMacros+

Screenshots from MyMacros+.
What We Like
  • Easily adjust what you're tracking.

  • Created by a fitness professional.

  • Millions of food entries.

What We Don't Like
  • Nutrition information can sometimes be wrong or incomplete.

  • Not a free app, and basic features hidden behind additional paywall..

  • Not intuitive to use.

A keto-friendly app should have a solid database of food to choose from, and MyMacros+ does. With more than 5,000 foods listed, you should be able to find what you're looking for, however,the search and scan functions can sometimes be a little biggy. A simple restart of the app usually fixes that, and if you don't mind that, then you'll find this app has tons of information to help you stay on track. It also allows you to track multiple diet plans and change your diet plan at will. So, while this isn't a free app, it does offer lots of features that you may find useful.

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Best for All Around Fitness: MyFitnessPal

Screenshots from the MyFitnessPal app.
What We Like
  • Easy to use and customize for keto diet plans.

  • More than six million foods available in the tracker.

  • Apps links with dozens of other apps to keep all your fitness information in one place.

What We Don't Like
  • Some great features are hidden behind a paywall.

  • Foods can be entered by users, so they're not always accurate.

  • Not always clear how exercise impacts calories burned.

MyFitnessPal has been around a while. It was a superb app before Under Armour bought it, and it's even better now. The app is easy to use and customize, and you have the freedom to set your goals or eating trends to suit whatever your fitness goals may be. There are two downsides, though. First, some of the best features of MyFitnessPal are hidden behind a paywall, and second you need to be attentive when entering food, because (since some is user entered and not verified) the nutritional information could be off. Overall, though, this app is definitely keto-friendly and at least worth trying.

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Best for Choosing Your Level of Keto: LifeSum

Screenshots of the LifeSum app.
What We Like
  • Set goals & track calories and nutrients for any diet plan.

  • Lets you change your focus whenever needed.

  • Very customizable.

What We Don't Like
  • Fewer food options than some apps.

  • Food measurements are restrictive.

  • Some features hidden behind paywall.

LifeSum is a beautiful app that is customizable enough that you can choose what level of keto you prefer to work at. What's more, you can change your goals and focus at any time, so it's customizable enough for most users regardless of what type of diet you prefer. Unfortunately, there are some restrictions in the way food is measured, which makes it difficult to quickly enter food into your diary, and some features of this app are hidden behind a paywall.

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Best App to Keep You Engaged: LoseIt!

Screenshots from the LostIt! app.
What We Like
  • Intuitive and easy to use.

  • Includes quizzes, tips, and meal planners to help you stay engaged.

  • Database of millions of foods.

  • WatchOS version also available.

What We Don't Like
  • Android functionality not as robust as iOS functionality.

  • Some features hidden behind a paywall with multiple tiers of subscriptions.

  • Reporting on Android can be buggy.

LostIt! is another app that many beginning keto dieters find useful because of the huge database of foods available to choose from. The interface is super simple to use, and you can customize it with your preferences so you're targeting the goals you want to hit. On the downside, however, the app can be a little buggy at times, and the Android version of the app doesn't have as much functionality as the iOS app.

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Best for the Beginning Keto Dieter: Total Keto Diet

Screenshots from the Total Keto Diet app.
What We Like
  • Hundreds of keto-friendly recipes.

  • Beginners' keto guide to help you get started the right way.

  • Macro tracker helps you stay on track.

What We Don't Like
  • Food database isn't as extensive as other apps.

  • Barcode tracker isn't always accurate.

  • Some users complain the app is unstable after updates.

Total Keto Diet is an app designed for either the beginning or advanced keto dieter. There is tons of educational information in the app to help you get started and features as sophisticated as a keto calculator and a macro tracker. The app just seems to take the guesswork out of keto dieting, regardless of what level you're at.

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