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"The best paid diet app."


"The top nutrition tracking app on the market"


"The best paid diet app."

Reach your diet goals with the smartest, fastest nutrition app on the market.

MacroFactor is a science-backed diet sidekick and macro tracker app from Stronger By Science Technologies.

Fast and accurate food logging

MacroFactor has the fastest food logging workflows on the market. Logging a food takes fewer taps in MacroFactor than in any other app, and all foods have been verified for accuracy.

Sustainable and empowering diet coach

Unlike other diet coach apps, you don’t have to perfectly adhere to your targets to get smart adjustments to your plan, and you'll never see red numbers or shaming tactics.

Evidence-based recommendations

MacroFactor's algorithms and recommendations are based on proven nutrition and behavioral science.

Learn more and see our full feature breakdown

Featured articles

Why You Should Consider Ditching MyFitnessPal for MacroFactor

MacroFactor’s hyper-efficient food logging workflows and weekly nutrition adjustments set it apart from MyFitnessPal. But what does MyFitnessPal offer that MacroFactor doesn’t? In this article, we compare MacroFactor vs MyFitnessPal head to head.

Reverse Dieting: Hype Versus Evidence

This article will explore the actual research related to reverse dieting, which tells a much different story than the hyped-up anecdotes you’ll see on social media. It will also explain why “dynamic maintenance” is a more flexible and less tedious strategy that offers every single benefit that reverse dieting actually delivers.

Body Composition Assessments are Less Useful Than You Think

Measuring body composition seems to be a mild obsession in the fitness community, but individual-level body composition assessments are far less useful than most people realize. In this article, we explain the issues and present a few alternative outcome measures that are more useful.

Read more in-depth articles:


The MacroFactor Knowledge Base contains helpful how-tos, answers to FAQs, and explanations of the app's unique features.


The MacroFactor public roadmap shows our plans for new features and improvements. We welcome your feature requests here too!


The MacroFactor groups are a great place to ask and answer questions and connect with a likeminded and supportive community.

Reach your diet goals with MacroFactor

Join 35,000 users and confidently control your nutrition with MacroFactor. Download and start your free trial to get your custom macro plan and food logging access today.

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