The short version

fatsecret gives you a broad calorie and weight loss tracking toolkit. Keto.app is built specifically around making your next keto decision clear.

Keto app comparison

Keto.app vs fatsecret

Both apps can track food and macros. The bigger difference is what the product is trying to help you achieve.

fatsecret is built around calorie tracking and weight loss. Keto.app is built around a more specific question: am I still on keto track, and what should I do next?

Your keto day 12g net carbs left
TODAY
Carbs
Fat
Protein
Cal
Before you add it Blueberries use 42% of your remaining net carbs

You can still fit them today, but dinner will need to stay very low carb.

Next step Protein is on track. Keep dinner simple.

Choose a low-carb dinner and you can finish the day close to your targets.

fs
fatsecret Calorie & weight loss tracker
Calorie tracking
Macro tracking
Food diary
Barcode scanner
Smart Food Scan
Weight tracking
Reports
Community
Streaks & badges
Health integrations
Keto.app → the next decision
fatsecret → weight loss tracking

The real difference

Tracking the same macros does not mean the same experience

The apps overlap on food and macro tracking. Their primary goal is where the comparison gets interesting.

Keto.app

Turn today's food into a clearer next step.

See how food changes the day, understand what pushed your targets off balance, and get a practical suggestion for what to change next.

fatsecret

Track calories, habits and weight loss progress in one app.

Track food, calories and macros alongside weight progress, reports, community, streaks and connected health data.

Not more checkmarks

A comparison page should not pretend one app wins every row. The useful question is which product is built around the problem you actually want solved.

Quick comparison

Same category. Different emphasis.

Instead of a long list of yes/no checkmarks, this table compares what each app is built to do best.

What matters
Keto.app
fatsecret
Food & macro tracking
Keto-focused tracking
Calorie & macro tracking
Fast food logging
Search, voice, barcode, labels
Search, barcode, photo, voice
Food impact before logging
A core part of the flow
Not its main positioning
Day-level explanation & next step
AI day analysis
Reports & insights focus
Meal planning
Ready-made keto plans
Meal planner + dietitian plans
Community & motivation
Not the main product
Community + streaks & badges
Weight loss progress & reports
Keto routine & progress tools
Weight tracking + reports
Price
Free for fewer than 5 foods a day · PRO monthly, yearly or one-time lifetime
Free tier · Premium $10.49–$14.99/mo, $38.99–$59.99/yr
Languages
15 languages
23 languages
Best fit
I want the next choice to be clearer
I want to track calories & lose weight

Features and product positioning can change. fatsecret descriptions here are based on its publicly available app, Premium and Help pages reviewed in July 2026.

Before you log it

A food can be keto and still not fit your day.

Keto.app is designed to show the effect of a food in the context of what you have already eaten today.

  • Preview how a food changes remaining net carbs.
  • See the trade-off before the food is added.
  • Make the next meal decision with today's numbers in context.
Food impact preview Today
Blueberries · 100gPreview before adding
+12g net carbs
Net carbs8g → 20g of 24g
Protein74g → 75g of 110g
Calories1,180 → 1,237 of 1,650
This still fits today, but it uses most of your remaining carb budget. A very low-carb dinner would keep you close to target.
After the day

A dashboard can show that carbs went high. The next useful step is understanding why — and what to change tomorrow.

AI day analysis

Numbers are useful. An explanation is easier to act on.

Keto.app uses the foods you actually logged to explain what happened and give one practical next step.

  • See which foods pushed carbs, protein, fat or calories.
  • Get a short explanation instead of generic keto advice.
  • Leave the screen knowing what to do differently next.
✦

Your day, explained

Based on the foods logged today.

Your protein stayed close to target, but net carbs climbed mostly because of the berries and yogurt you added in the afternoon. The rest of the day was fairly balanced.
→
One clear next step
Tomorrow, keep the same breakfast and swap the afternoon yogurt for a lower-carb option.

Where fatsecret is broader

fatsecret is built around the broader weight loss journey.

Its official product pages position the app as an all-in-one companion for calorie tracking, food habits and lasting weight loss.

  • A large verified food database and free calorie and macro tracking.
  • Community, achievements and streaks for motivation.
  • Weight progress, reports and connected health apps.
  • Premium photo and voice logging plus meal planning tools.
⌁

Food & calorie tracking

A broad food database, calorie targets and macro tracking built around weight loss progress.

◎

Progress & reports

Weight history, nutrition trends and reports help users see how daily habits add up over time.

∞

Community & motivation

Community, achievements and streaks support consistency for people working toward weight loss goals.

Which one fits you?

The better app depends on what you want after opening it.

Both are solid apps. The right choice depends on the problem you want solved.

Choose Keto.app if...

You want keto to feel easier to decide.

  • You want to know whether a food fits today's carb budget.
  • You want to understand which foods changed your day.
  • You prefer a short explanation and one practical next step.
  • You want ready-made keto plans when you do not want to think about meals.
Choose fatsecret if...

You want a broad calorie and weight loss tracker.

  • You want calorie tracking to be the center of your weight loss routine.
  • You value a large food database and free barcode scanning.
  • You want community, streaks and achievements to stay consistent.
  • You want reports, weight progress and connected health data together.

Common questions

Keto.app vs fatsecret FAQ

Direct answers about keto tracking, pricing, languages and who each app fits.

Is fatsecret good for keto?

fatsecret is a general calorie and weight loss tracker. It can track macros, and its Premium plan includes a keto-style meal plan, but keto is not the center of the app.

Does Keto.app track net carbs automatically?

Yes. Keto.app subtracts fiber and sugar alcohols automatically and keeps net carbs as the main number on your daily dashboard.

Is Keto.app free?

Keto.app is free to download and use. PRO is only needed to log 5 or more foods a day, and it comes as a monthly or yearly subscription or a one-time lifetime purchase.

Which app is available in more languages?

fatsecret’s App Store listing covers 23 languages. Keto.app is available in 15, including Spanish, German, French, Portuguese and Russian.

Who should choose fatsecret?

Choose fatsecret if your main goal is counting calories and losing weight with a broad, familiar food diary, reports and community features.

Who should choose Keto.app?

Choose Keto.app if you follow keto and want net carbs front and center, a preview of how each food fits your day, and ready-made keto meal plans.

Our take

fatsecret tracks the weight loss journey. Keto.app is built for the keto decision in front of you.

Both can track food and macros. If your real problem is staying inside a keto routine and knowing what today's food means for your next meal, try Keto.app.

Comparison based on publicly available product information reviewed in July 2026. fatsecret features referenced from its official app page, Premium page, and Help center. fatsecret is a trademark of its respective owner. Keto.app is not affiliated with fatsecret. Prices and languages are taken from the US App Store listings, reviewed in October 2026.