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 gives you a broad calorie and weight loss tracking toolkit. Keto.app is built specifically around making your next keto decision clear.
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?
You can still fit them today, but dinner will need to stay very low carb.
Choose a low-carb dinner and you can finish the day close to your targets.
The real difference
The apps overlap on food and macro tracking. Their primary goal is where the comparison gets interesting.
See how food changes the day, understand what pushed your targets off balance, and get a practical suggestion for what to change next.
Track food, calories and macros alongside weight progress, reports, community, streaks and connected health data.
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
Instead of a long list of yes/no checkmarks, this table compares what each app is built to do best.
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
Keto.app is designed to show the effect of a food in the context of what you have already eaten today.
A dashboard can show that carbs went high. The next useful step is understanding why — and what to change tomorrow.
AI day analysis
Keto.app uses the foods you actually logged to explain what happened and give one practical next step.
Based on the foods logged today.
Where fatsecret is broader
Its official product pages position the app as an all-in-one companion for calorie tracking, food habits and lasting weight loss.
A broad food database, calorie targets and macro tracking built around weight loss progress.
Weight history, nutrition trends and reports help users see how daily habits add up over time.
Community, achievements and streaks support consistency for people working toward weight loss goals.
Which one fits you?
Both are solid apps. The right choice depends on the problem you want solved.
Common questions
Direct answers about keto tracking, pricing, languages and who each app fits.
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.
Yes. Keto.app subtracts fiber and sugar alcohols automatically and keeps net carbs as the main number on your daily dashboard.
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.
fatsecret’s App Store listing covers 23 languages. Keto.app is available in 15, including Spanish, German, French, Portuguese and Russian.
Choose fatsecret if your main goal is counting calories and losing weight with a broad, familiar food diary, reports and community features.
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.
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.