The keto diet looks simple on paper, cut carbs, eat more fat, keep protein moderate, and your body shifts into ketosis. In practice, staying under 20-50g of net carbs a day while hitting the right fat and protein targets requires more attention than most people expect. One mislabeled food item or an underestimated portion can knock you out of ketosis without you realizing it.
That’s where keto diet apps earn their place. We’ve tested and researched the most widely used options on the market to find out which ones actually make keto easier, and which ones just look good on the App Store listing.
The apps below cover different needs, some are built for pure tracking, others automate meal planning entirely, and a few are particularly good if you’re just getting started.
Keto Diet App Quick-Pick Summary
| App | Best For | Price | Standout Feature |
|---|---|---|---|
| Eat This Much | Automated meal planning | Free / Premium $5-$15/mo | Auto-generates full weekly meal plans to hit your exact macros |
| Carb Manager | Deep keto tracking | Free / Premium ~$40/yr | Net carb focus, 1M+ food database, glucose tracking |
| Cronometer | Micronutrient detail | Free / Gold $59.99/yr | Tracks 85 nutrients; USDA-verified database |
| KetoDiet | Recipe-led keto | From $79.99/yr | 2,000+ tested keto recipes with macro tracking |
| Keto Cycle | Keto beginners | From ~$2.54/wk | Onboarding quiz + guided beginner programme |
| Senza | Eating out on keto | Free / Per meal plan ~$15-$20 | Keto Map shows nearby keto-friendly restaurant options |
| MyFitnessPal | Flexible macro tracking | Free / Premium $9.99/mo | Huge food database; customisable macro targets |
*Prices as of May 2026. May vary by platform and region.
How We Picked These Apps
We reviewed the most commonly recommended keto apps based on App Store and Google Play ratings, community discussion across keto forums and Reddit, feature depth, and practical usability. We then looked at pricing structure, database accuracy, and whether the free version is genuinely useful or just a funnel to an upsell to a paid subscription.
We looked specifically for apps that handle net carb calculation automatically, since manually subtracting fiber and sugar alcohols is one of the most common sources of error for keto beginners. We also paid attention to meal planning capabilities, which most competing listicles overlook entirely.
Apps that are no longer actively maintained, or that have significant data accuracy issues reported by users, didn’t make the cut.
1. Eat This Much — Best for Automated Keto Meal Planning
| Platform | Web, iOS, Android |
| Price | Free (daily plans) / Premium from $5/mo billed annually |
| Best for | People who want their keto meals planned automatically, not just tracked after the fact |
Most keto apps answer the question: “what did I eat today?” Eat This Much answers a far more useful one: “what should I eat this week?” Set your daily calorie target, your macro split (the app defaults to keto-friendly ratios), your food preferences, your budget, and any ingredients you want to avoid, and it generates a complete meal plan automatically. No template browsing or manual recipe selection. The algorithm handles it all and you get a week of keto meals that actually hit your numbers, without spending 45 minutes figuring out what to cook.
The difference this makes in real life is huge. The hardest part of sustaining a keto diet for most people isn’t the tracking, it’s deciding what to eat three times a day without falling back on the same five meals. The meal planning automation removes that decision fatigue entirely, which is why Eat This Much was named CNN Underscored’s Best Meal Planning App of 2025, recognition it still carries in 2026.
The grocery list integration is one of the more practical features in this space. Premium users get an automatically generated, categorized shopping list that syncs with Instacart, Walmart, and Amazon Fresh for direct delivery. The virtual pantry feature tracks what you already have, so the list only includes what you actually need. This cuts down on tracking what you already own, so you’re not buying a second jar of almond butter when you have one sitting at home.
For keto specifically, the app’s macro customization handles the diet well. You can set your carb, fat, and protein targets to keto ratios and the algorithm generates meals that fit. You can also exclude entire food categories or individual ingredients, which is useful for the dairy-free or egg-free keto crowd who find most keto recipes don’t accommodate their restrictions.
The free tier generates daily plans and lets you log food manually. For most people who want the full weekly planning experience with grocery integration, Premium is the practical choice. Starting at $5/mo on an annual plan, it’s one of the lower-cost options in this list.
Where Eat This Much differs from pure keto trackers is that it’s less suited to the user who wants to log every meal to an existing tracker they use for other data points like glucose or ketone readings. It’s an automated planner first, a tracker second. If micronutrient breakdowns or biometric tracking are your priority, Cronometer or Carb Manager will serve you better. But for anyone whose main problem is figuring out what to eat on keto without burning out on it, nothing on this list comes close.
Pros
- Generates full weekly meal plans automatically,, no manual template browsing
- Handles keto macro ratios natively with full customisation and per-ingredient exclusions
- Grocery list integrates with Instacart, Walmart, and Amazon Fresh
- Virtual pantry reduces waste and over-buying
- Free tier available; Premium is among the most affordable options starting at $5/mo
Cons
- Less suited as a pure food diary or biometric tracker
- Free tier limited to single-day plans; full weekly planning requires Premium
- Micronutrient tracking is basic compared to Cronometer
2. Carb Manager — Best for Deep Keto Tracking
| Platform | iOS, Android, Web |
| Price | Free / Premium ~$39.99/yr or $16.50/quarter |
| Best for | Keto veterans who want granular tracking, a large recipe library, and optional glucose/ketone monitoring |
Carb Manager is the app most serious keto practitioners eventually land on. It was built specifically for low-carb and ketogenic eating, which means the defaults actually make sense from day one. Net carbs are calculated automatically, the food database skews toward keto-verified entries including branded keto products and restaurant items, and the interface organizes around carb limits rather than just calorie targets.
The food database is one of the most extensive available, with over one million entries, and a “keto grade” for foods, so when you search for something, you immediately see whether it fits your plan and how much carb budget it will eat up. For anyone who has tried to keto-adapt a standard calorie counter, the difference is immediately obvious. You’re not manually calculating whether something fits, the app tells you.
The premium tier is where Carb Manager pulls ahead of most competitors. Blood glucose and ketone tracking with charts that show how your meals correlate with your metabolic markers, macro cycling for targeted keto protocols, and access to 5,000 keto-specific recipes. It also integrates with CGMs like Dexcom and Libre via Apple Health, which makes it a genuine tool for the more data-oriented keto user.
The honest downside is that Carb Manager’s interface has gotten busier over time. There are a lot of tabs, a lot of features, and the premium upsell is visible throughout the free version. Users who just want clean, fast food logging sometimes find it overwhelming.
Pros
- Purpose-built for keto with net carbs calculated automatically throughout
- 1M+ food database including branded keto products and restaurant menus
- Keto grade feature flags non-keto foods in real time
- CGM/glucose integration on premium
- Active community and recipe library
Cons
- Interface feels cluttered and the premium upsell is hard to miss on the free tier
- Many useful features sit behind the premium paywall
- Not a meal planning tool in the same sense as Eat This Much
3. Cronometer — Best for Micronutrient Tracking on Keto
| Platform | iOS, Android, Web |
| Price | Free / Gold $59.99/yr ($10.99/mo) |
| Best for | Anyone who wants to know exactly what they’re getting nutritionally, not just macros |
Cronometer earns its reputation in keto communities for the depth of its nutritional data. Where most apps track carbs, fat, protein, and calories, Cronometer tracks 85 nutrients including individual amino acids, vitamins, minerals, and lipid profiles. Its primary food database draws from verified sources including the USDA, which matters for accuracy in a way that crowd-sourced databases often don’t.
This matters for keto specifically because the diet has documented risks around certain micronutrients. Restricting carbs means restricting many vegetables and fruits that are typical sources of potassium, magnesium, and vitamin C. Cronometer makes it easy to see exactly where you’re running short and which foods would close the gap. That level of visibility is hard to get anywhere else with a macro-only tracker.
The free version is genuinely generous. It includes net carb calculation, macro tracking, the full nutrient database, and fitness tracker integration. The Gold upgrade adds a fasting timer, custom biometric reports, and Nutrient Oracle (a feature that suggests foods to address specific nutrient gaps). For most keto users the free tier covers everything they need.
The limitation Cronometer users most commonly mention is that entering multi-ingredient recipes requires manually adding each component and specifying quantities. If you meal prep or eat the same things regularly, this becomes second nature. If your meals vary daily and involve many ingredients, it takes time.
Cronometer isn’t a meal planner and doesn’t try to be. It’s a precise nutritional diary with exceptional data quality. If you’re six months into keto and want to understand exactly what’s in your food at a nutrient level, no other free app on this list comes close.
Pros
- Tracks 85 nutrients, the most detailed nutritional picture in this list
- USDA-verified database reduces the data quality issues common in crowd-sourced apps
- Generous free tier includes macro tracking and net carb calculation
- Integrates with fitness trackers and CGMs
Cons
- Manual recipe entry is time-consuming
- Not a keto-specific app; and keto users need to set their own macro targets
- No meal planning or automated grocery lists
4. KetoDiet — Best for Recipe-Led Keto
| Platform | iOS, Android, Web |
| Price | From $79.99/yr credit card required (14-day free trial) |
| Best for | People who want a curated keto recipe library alongside tracking |
The KetoDiet app (ketodietapp.com) is less of a pure tracker and more a keto lifestyle companion, built around a tested recipe library of over 2,000 keto dishes, backed by a macro calculator, food diary, and nutrient tracking dashboard.
What sets it apart from generic recipe apps is the quality of the content. Recipes are tested, carb counts are accurate, and the database covers both common foods and more unusual keto-friendly ingredients. The app includes educational content about different keto variations, carb cycling, and nutritional science, written to a higher standard than generic blog posts.
The tracking side handles everything you’d expect, barcode scanning, net carb calculation, macro breakdowns per meal, and weight tracking. It won’t match Cronometer for micronutrient depth, but for someone whose primary interest is eating well on keto rather than analyzing their manganese intake, the balance feels right.
The pricing model is the main consideration. There’s no permanent free tier, you get a 14-day trial and then it’s an annual subscription. At $79.99/yr it’s the priciest option on this list. Whether it’s worth it depends on how much you value the recipe library. For someone who cooks regularly and wants keto recipes they can trust, the tested recipe database justifies the cost. For someone who mainly logs existing meals, Carb Manager or Cronometer offer better value.
Pros
- 2,000+ tested keto recipes with accurate macro counts, not crowd-sourced estimates
- Clean interface designed specifically for keto
- Educational content covers keto fundamentals and variations in depth
- Accurate nutrient tracking including net carbs and micronutrients
Cons
- No permanent free tier, requires subscription after 14-day trial
- Priciest app in this list
- Limited macro customization compared to Carb Manager or Cronometer
5. Keto Cycle — Best for Keto Beginners
| Platform | iOS, Android |
| Price | From ~$2.54/wk (billed every 6 months); no permanent free tier |
| Best for | First-time keto dieters who want structured guidance alongside tracking |
Keto Cycle is built for people who have decided to try keto and want someone to hold their hand through the first few weeks. The onboarding questionnaire covers dietary preferences, cooking time, fitness goals, and activity levels, then produces a personalized meal plan with macros calculated for the individual. The goal is to remove the decision paralysis barrier that stops many people from getting past day three.
Beyond the initial setup, the app includes a Keto Academy section for beginners, covering the fundamentals of the diet, including what ketosis is, how to manage common side effects like the keto flu, how to read food labels, and how to build habits that make it sustainable. It’s the kind of material you could find scattered across a dozen blog posts, but having it in one place matters when you’re new and don’t know which sources to trust.
The community angle is also a real selling point. 60,000+ active members sharing recipes, progress, and tips adds a motivational layer that clinical trackers like Cronometer simply don’t have, and for a lot of people it’s the difference between quitting at week two and still going at week eight.
For experienced keto practitioners, the hand-holding can become a bit annoying, and the tracking depth is lighter than Carb Manager or Cronometer. The app’s strength is onboarding and motivation, not advanced data. If you’ve been doing keto for a year and want to optimize your micronutrient profile, this isn’t the right tool. If you’re three days in and losing steam, it probably is.
The pricing structure is also a bit awkward, with no free tier and subscriptions running in multi-month billing cycles (2, 4, or 6 months) rather than a simple monthly option. The longer the commitment, the lower the effective weekly cost. At the shortest period it’s around $3.81/wk, at the longest it drops to $2.54/wk.
Pros
- Well-designed onboarding and beginner education which is genuinely useful if you’re new to keto
- Personalized meal plan generated from initial questionnaire
- Active community of 60,000+ members for accountability and support
- Affordable on longer billing cycles
Cons
- No free tier
- Lighter tracking depth than Carb Manager or Cronometer
- Multi-month billing structure can be confusing
6. Senza — Best for Keto When Eating Out
| Platform | iOS, Android |
| Price | Free / Per meal plan ~$15-$20 |
| Best for | Keto dieters who eat out regularly and need real-time help navigating restaurant menus |
Senza’s most distinctive feature is the Keto Radar map, a location-based tool that identifies nearby restaurants and flags menu items that fit keto macros. If you’re traveling, eating out with non-keto friends, or just trying to find something you can order at the local Thai restaurant without breaking ketosis, this fills a gap that other apps ignore entirely. The competing apps assume you’re eating food you’ve prepared, while Senza takes into account that you’re sometimes in the real world.
Beyond the restaurant feature, Senza handles the standard tracking toolkit: barcode scanning, net carb calculation, 200,000+ food records, and a fasting timer for those who combine keto with intermittent fasting. It also syncs with the BioSense breath ketone monitor, which is useful for users who want biological confirmation of ketosis rather than just mathematical tracking.
The app maintains a high rating (around 4.8 stars on the App Store) and is actively maintained, which matters in a category where several apps have gone dormant. User reviews consistently highlight the restaurant feature as the reason they choose it over alternatives.
Senza is free with no paid tier with the option to buy meal plans. The one limitation is that the food database is smaller than other apps, so occasional manual entry is needed for less common foods.
Pros
- Keto Map is genuinely unique, location-based keto-friendly restaurant guide
- Free with no upsell pressure, option to buy meal plans
- Fasting timer built in
- Syncs with BioSense breath ketone monitor
Cons
- Smaller food database than other apps in this list
- No free meal planning
7. MyFitnessPal — Best for Flexible Macro Tracking
| Platform | iOS, Android, Web |
| Price | Free / Premium $9.99/mo or $49.99/yr |
| Best for | Keto dieters who already use MFP and want to set custom keto macro targets rather than switch apps |
MyFitnessPal is not a keto app. It was built as a general calorie counter and its defaults treat all macros equally. You can configure it for keto by setting custom macro percentage targets, but you’re adapting a general-purpose tool rather than using one designed for the job. On the scale of how well an app handles keto, it sits behind every other option on this list.
So why is it here? Because it has the largest food database of any app in this space (over 14 million entries, including user-contributed restaurant items), the barcode scanner is fast and accurate, and a significant portion of people already have years of food data logged in MFP they’re not willing to abandon.
If you’re in that camp, you can run a keto diet on MyFitnessPal reasonably well. Just set your macro split manually (70% fat, 25% protein, 5% carbs is a common keto starting point) and manually calculate net carbs, since MFP’s free tier doesn’t handle this automatically. If you’re starting fresh with no prior MFP history, consider using a different app from our list instead.
The free version is more restricted than it used to be, and net carb calculation requires the premium tier. Several features that are standard on other app’s free versions sit behind the MyFitnessPal paywall.
Pros
- Largest food database available (14M+ entries)
- Fast, accurate barcode scanner
- Wide fitness tracker and device integration
- Familiar to many users who already have data logged
Cons
- Not designed for keto, macro defaults are not keto-aligned
- Net carb calculation requires Premium subscription
- Free tier has become increasingly restricted
- Purpose-built keto apps offer better defaults for keto users
Side-by-Side Feature Comparison
| App | Meal Planning | Net Carbs (free) | Recipe Library | Micronutrients | Eating Out Support | Free Tier |
|---|---|---|---|---|---|---|
| Eat This Much | Automated weekly | Yes | 5,000+ recipes | Basic | No | Yes (daily plan) |
| Carb Manager | Curated meal plans (premium) | Yes | 5,000+ (premium) | Premium only | Restaurant search (premium) | Yes |
| Cronometer | None | Yes | None | 85 nutrients (free) | No | Yes |
| KetoDiet | Manual from recipes | Yes | 2,000+ tested | Yes | No | 14-day trial only |
| Keto Cycle | Personalised plan | Yes | Keto recipes included | Basic | No | No |
| Senza | None | Yes | 800+ keto recipes | Basic | Keto Map (unique) | Yes (fully free) |
| MyFitnessPal | None | Premium only | None | Premium only | Database search | Yes (limited) |
Which Keto App Should You Use?
The right app depends on where your biggest friction is and what you want from your app. Here’s a quick reference guide to help you decide:
- You want meals planned for you, not just tracked: use Eat This Much. It’s the only app here that generates a full keto meal plan automatically based on your macros, preferences, and budget without any manual setup. Everything else requires you to decide what to eat first.
- You want the deepest tracking available for keto: use Carb Manager. The keto-specific defaults, 1M+ food database, and net carb automation make it the strongest pure tracker in this list.
- You want to understand what you’re actually eating nutritionally: use Cronometer. No other free app gives you 85 nutrients from a verified database.
- You eat out regularly and need help navigating menus: use Senza. The Keto Map feature is unique, and it’s completely free.
- You’re just starting keto and want guidance: use Keto Cycle. The onboarding and beginner content are the best in this list.
- You’re already deep into MyFitnessPal and don’t want to switch: stay on MFP, but configure your macro split manually and consider upgrading to get net carb calculation.
Frequently Asked Questions
What is the best free keto app?
It all depends on what you’re looking for. If you want automated meal planning without having to think about macro splits for free, Eat This Much’s free tier generates daily plans, while weekly planning and grocery integration require a Premium subscription. Carb Manager and Cronometer both offer strong free tiers. Carb Manager’s free version includes net carb calculation, barcode scanning, and macro tracking with keto-specific defaults. Cronometer’s free version adds exceptional micronutrient depth. Senza is also entirely free.
Is MyFitnessPal good for keto?
It works, but it’s not purpose-built for it. MyFitnessPal lets you set custom macro targets to keto ratios, and the food database is the largest available. The limitation: net carb calculation (subtracting fiber and sugar alcohols) requires the paid Premium tier. Apps like Carb Manager handle this automatically on the free version. If you’re starting fresh, a keto-specific app will serve you better. If you already have years of data in MFP, it’s a reasonable option with a manual workaround.
Do keto apps actually help you stay in ketosis?
They help you stay within the carb limits that support ketosis. No app can measure whether you’re in ketosis, only a blood, breath, or urine ketone test can do that. What apps do well is remove the manual calculation error that most commonly knocks people out of ketosis such as misidentified serving sizes, forgotten sugar alcohols, and restaurant meals that are harder to log accurately.
Do I need to pay for a keto app?
Not necessarily. Carb Manager, Cronometer, Senza, and Eat This Much all have functional free tiers. If you want weekly meal planning with grocery delivery integration, Eat This Much’s $5/mo Premium is worth considering. If you want premium keto recipes and more advanced tracking, Carb Manager’s ~$40/yr is reasonable. Start with free tiers and upgrade if you find yourself consistently running into limitations.
Which keto app has the best meal planning?
Eat This Much is the strongest for automated meal planning. It generates full weekly meal plans to match your exact calorie and macro targets, accounts for food preferences and budget, and connects directly to grocery delivery. Keto Cycle and Keto Diet App include meal planning features, but they’re more template-based than genuinely automated. Carb Manager’s premium tier also includes curated meal plans.
