The Deal That Reshapes Calorie Tracking

Yesterday, MyFitnessPal announced that it has acquired Cal AI, the AI-powered calorie tracking app built by teenagers Zach Yadegari and Henry Langmack. The deal closed in December and was made public on March 2, 2026.

This is the biggest shakeup in the calorie tracking space in years. And as someone building in this exact category, I have thoughts.

But first, the facts.

What happened

MyFitnessPal, the 20-year-old nutrition tracking giant owned by private equity firm Francisco Partners, acquired Cal AI after nearly a year of deal talks. Cal AI had grown to over 15 million downloads and north of $40 million in annual revenue in under two years. The entire Cal AI team of seven employees has been retained, and Yadegari told Inc. that the app broke $50 million in ARR along the way. Financial terms were not disclosed.

So what did MyFitnessPal pay for Cal AI?

Nobody's saying. But when a bootstrapped app is doing $40M+ in ARR with a team of seven, you can back into a range. One user on X asked Grok to take a guess, and the answer feels about right:

A 5-6x revenue multiple for a fast-growing, AI-native consumer app with minimal overhead? That math checks out. And for two founders who were in high school two years ago, that's a life-changing outcome by any measure. MFP CEO Mike Fisher noted that the Cal AI team didn't have to sell and were happy with the offer, which tells you the number was compelling enough to walk away from a $50M ARR rocketship.

Cal AI will continue to operate as a standalone app. MyFitnessPal has already integrated its massive database of over 20 million foods into the Cal AI experience. The two apps will serve what MFP CEO Mike Fisher describes as different audiences: Cal AI for users who want speed, MFP for users who want precision.

This is MyFitnessPal's third major move in just over a year. They acquired the meal planning app Intent in early 2025, launched an integration with ChatGPT Health in January 2026, and now this. Francisco Partners is clearly building a portfolio, not just maintaining a product.

Who is Cal AI?

If you've been anywhere near TikTok in the last two years, you've probably seen Cal AI. The app went viral for its dead-simple premise: take a photo of your food, get a calorie estimate. That's it.

Cal AI was co-founded by Zach Yadegari, who started coding at age 7 and previously built and sold a gaming website called Totally Science while still in high school. (If you're a Cal AI user exploring your options now, we put together a breakdown of the best Cal AI alternatives.) He and co-founder Henry Langmack launched Cal AI and watched it rocket up the App Store charts, eventually going neck-and-neck with MyFitnessPal itself in their category rankings.

Yadegari, now 19, was running Cal AI while attending the University of Miami. He's reportedly considering dropping out to start his next company. He tweeted about the acquisition and the $50M ARR milestone on X.

Let me just say it plainly: what Yadegari and Langmack built is genuinely remarkable. $40M+ in revenue. 15 million downloads. A team of seven people. Built while still in school. That's not a cute teenager startup story. That's an elite execution story that happens to involve teenagers. Massive respect.

Who owns Cal AI now?

Cal AI is now owned by MyFitnessPal, which is itself owned by Francisco Partners, a technology-focused private equity firm. Francisco Partners acquired MyFitnessPal from Under Armour back in 2020. So the chain is: Francisco Partners → MyFitnessPal → Cal AI.

Two of the most-downloaded calorie tracking apps in the App Store, now under one private equity roof. We'll come back to why that matters.

Cal AI will remain a separate product with its own branding and user experience. MyFitnessPal has said it has no plans to merge the two apps or migrate Cal AI users over.

The market is massive (and getting bigger)

Before we get into what this means, let's zoom out.

According to DataHorizzon Research, the global calorie counter apps market hit $4.8 billion in 2024 and is projected to reach $14.2 billion by 2033, growing at an 11.5% CAGR. That's nearly tripling in less than a decade.

And the calorie tracking space is crowded. MFP CEO Mike Fisher said they actively monitor around 70 competitors. Seventy. That includes everything from legacy players like Lose It! and FatSecret, to newer AI-native apps like Cal AI, MacroFactor, and yes, Hoot. Plus the big tech platforms are circling. MyFitnessPal literally just integrated with ChatGPT Health in January.

Cal AI's growth to $40M+ in revenue within this crowded field is the best possible proof of how much demand exists. There are hundreds of millions of people worldwide who know they should be paying attention to what they eat but haven't found a tool that makes it painless enough to stick with. The market isn't a fixed pie that gets smaller with every new app. It's expanding because the problem is that big and that universal.

When a 19-year-old and a team of seven can build a $40M business in under two years in a category with 70+ competitors, it tells you the opportunity is enormous. The pie is growing faster than anyone can eat it. (Pun intended. We're a calorie tracking company. We're contractually obligated.)

Small teams are having their moment

Here's what might be the most interesting part of this story, and it has nothing to do with the acquisition itself.

Cal AI was built by a tiny team. Seven employees. A handful of contractors. Two co-founders who were literally in high school when they started. And they built a product that a PE-backed company with 280 million registered users needed to buy rather than build themselves.

That's the story of 2025 and 2026 in tech. AI tools and modern infrastructure have made it possible for absurdly small teams to build products that compete with companies 100x their size. The barriers to entry haven't just lowered. They've basically disappeared. What matters now is taste, speed, and understanding what your users actually want.

We see this at Hoot too. We're a three-person founding team. We built and launched an AI-native calorie tracker on iOS, with Android right behind it, without a massive engineering org or a PE firm writing checks. The tools available to small teams today are genuinely unprecedented. And the incumbents know it, which is exactly why MyFitnessPal is buying instead of building.

What this tells us about the calorie tracking market

The incumbents know AI is the future. MyFitnessPal wasn't built in the AI era. It was built around a food database. A really good one, with 20 million entries. But its core interaction model (searching for foods and manually logging portions) is a product of 2005, not 2026. Acquiring Cal AI is an admission that the next generation of users expects something fundamentally different. And honestly? Good on them for recognizing it. Plenty of incumbents don't.

Consolidation is accelerating. This isn't happening in a vacuum. Strava acquired Runna and The Breakaway in 2025. TrainingPeaks bought IndieVelo. MyFitnessPal picked up Intent and now Cal AI. The fitness and wellness app space is consolidating fast, and the pattern is the same everywhere: established players with distribution are buying AI-native upstarts with product-market fit.

Private equity is betting big on nutrition tracking. Francisco Partners now owns a portfolio that includes the #1 legacy calorie tracker and one of the fastest-growing AI calorie trackers. That's a strong competitive position. It's also worth watching how PE ownership shapes product decisions over time. Private equity firms buy companies to grow revenue and eventually exit at a higher valuation. That can mean more investment and a better product. It can also mean more aggressive monetization, higher prices, or changes to free tiers. If you've used MyFitnessPal over the last few years, you already know what that trajectory can look like. (We wrote about why users are switching from MyFitnessPal before this acquisition was even announced. This deal will likely accelerate that trend.)

"Speed vs. accuracy" is a false choice. This is where we see things differently at Hoot. MFP CEO Fisher positioned Cal AI and MFP as two ends of a spectrum. Cal AI for speed. MFP for precision. Pick your lane.

We don't think you have to choose. The whole point of building an AI-native calorie tracker in 2026 is that you can have both. You can log a meal in seconds by typing "chicken burrito with salsa and guac" or snapping a photo, and still get a meaningful breakdown of calories, macros, and nutritional quality. Fast and useful aren't opposites. They should be the same thing.

What this means for Cal AI users

If you're a Cal AI user, the short-term news is probably fine. The app isn't going away. It's getting access to a bigger food database, which should improve accuracy. Yadegari is still involved (for now, though he's hinted at starting something new).

The longer-term picture is harder to predict. Cal AI is now a product inside a PE-backed portfolio. That's not automatically bad. But it does mean the decisions about Cal AI's future are being made with different incentives than when two teenagers were running it out of a dorm room. Things change when the goal shifts from "build the best product we can" to "maximize returns for a fund."

The Reddit reaction has been mixed, which is pretty standard for any acquisition announcement. People are understandably cautious when a product they like gets acquired by a larger company, especially one with a history of aggressive monetization.

So where does Hoot fit?

We're not going to pretend this isn't competitive news. Cal AI and Hoot are both AI-native calorie trackers built for people who found traditional apps too slow and too tedious. We compete for many of the same users.

But there's a meaningful difference in what we're building and why.

Cal AI was always primarily a photo-in, number-out tool. Fast, viral, effective at getting people in the door. Hoot is built around a different belief: that every time you log a meal, you should learn something from it. That's why every log gets a Nutrition Score, a "Hoot Says" insight, and specific suggestions for what to try next time. It's not just tracking. It's guidance.

We also think calorie tracking should be, dare I say, fun? Our mascot is literally an owl. We celebrate logging a bad meal just as much as a good one, because logging is the habit. We don't show red numbers when you go over your calories. We don't guilt you into perfection. We believe in progress over perfection, small wins over big guilt, and showing up most days over showing up perfectly.

Our approach to pricing reflects this too. At Hoot, you can log meals forever for free. No time limit. No "your trial expired" pop-ups. We want users to experience the product and believe in it before we ever ask them to pay. We call it "belief before payment." It's a fundamentally different model than a hard paywall, and we think it leads to better long-term retention and healthier habits. (If you're curious about whether premium fitness apps are actually worth the money, we dug into that question here.)

And unlike the two biggest AI calorie trackers in the App Store, we're not owned by a private equity firm. We're three co-founders building something we personally use every day. That might not matter to everyone, but it matters to us. It means every product decision is made by people who actually open the app at breakfast.

What happens next

The calorie tracking market just got more consolidated, but it also got more interesting. MyFitnessPal now owns two of the top apps in the category. A $14 billion market by 2033 means there's plenty of room for different approaches to coexist. But the dynamics have shifted, and we're paying attention.

For Hoot, this is a moment to double down on what makes us different. We're not trying to be the biggest. We're not trying to get acquired. We're trying to be the best at turning everyday meals into better habits. Guidance without guilt. One log at a time.

If you've been using Cal AI or MyFitnessPal and you're curious about a different approach, give Hoot a try. We also put together a list of the best MyFitnessPal alternatives if you want to see the full landscape. Log your first meal. See what Hoot thinks. It takes about five seconds. And nobody from a PE firm will be watching.

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Hoot is an AI-powered calorie and nutrition tracking app available on iOS and Android. Learn more at hootfitness.com.