RevenueCat Grew +40% Last Month Alone. Why? AI Tailwinds. You Gotta Find Yours.

So RevenueCat just shared its latest investor update and I asked for permission to share a little bit of it. SaaStr Fund was the very first investor so it’s been super fun to watch it grow from … $30 a month or so in ARR 🙂

If you have a mobile app with a subscription, there’s a very good chance RevenueCat is powering the billing, analytics, and paywall behind it. They process well over $1 billion a month in mobile subscription revenue across tens of thousands of apps. 50% of North American mobile subscription apps are powered by RevenueCat already.

And in March 2026, the number of new developers shipping their first production app on RevenueCat grew +40% in a single month.

200 developers per day, up from 142 the month before. Up from 25/day a year ago. (Revenue also hit a record and grew deep into the double digits as well)

RevenueCat manages almost 50% of the mobile subscription apps in North America and so it’s a proxy for what is happening in mobile overall … and 8x more developers are shipping real, monetizing mobile apps than one year ago.

Not prototypes. Not side projects. Apps with real in-app purchases, going live in the App Store and Google Play.

And RevenueCat’s tracked revenue is well over $1 billion per month. That’s almost $14 billion in annualized mobile subscription revenue flowing through their platform.

Here’s the thing. RevenueCat is not an AI company. They didn’t pivot to AI. They didn’t launch an AI agent product. They didn’t raise a round with “AI” in the pitch deck. They sell subscription billing infrastructure to mobile developers. They’ve been doing it since 2017.

What changed? Vibe coding changed everything around them, and they leaned deeply, deeply into it.

The Vibe Coding Wave Is Very Real

There’s been a persistent narrative that vibe coding is cute but not real. People building demos. Prototypes that look good on Twitter but never ship.

RevenueCat’s data destroys that narrative completely.

These are developers who went all the way through: built an app, integrated in-app purchases, submitted to the app store, and got their first production purchase from a real user. That’s not a demo. That’s a business.

And the curve isn’t just growing. It’s going exponential. From 25/day to 54/day to 89/day to 142/day to 200/day over the last 12 months. Each month bigger than the last, with the rate of increase itself accelerating.

What’s driving it? Tools like Replit (which just launched a native RevenueCat integration), Lovable and Claude Code are making it possible for people who never would have built a mobile app to build one, ship it, and monetize it. The barrier to creating a real software product has collapsed.

RevenueCat Didn’t Create the Tailwind. They Were Standing in the Right Place — and Leaned In.

This is the part that matters for every B2B founder reading this.

RevenueCat’s product didn’t radically change. They’ve been the #1 mobile subscription billing platform for years. What changed was the volume of developers who need subscription billing.

AI created a massive, structural increase in demand for their existing product.

That’s an AI tailwind. And it’s different from building an AI product.

Building an AI product means you’re competing on model quality, prompt engineering, inference costs, and a technology stack that changes every 3 months.

Riding an AI tailwind means your existing product suddenly has 3x, 5x, or 10x more potential customers because AI changed something upstream or downstream from you.

RevenueCat’s tailwind: AI made it dramatically easier to build mobile apps, so the number of mobile apps being built exploded, so the number of developers who need subscription billing exploded.

You have to find yours. And you have to lean deeply into it.

Every Vertical Has an AI Tailwind. Most Founders Haven’t Found Theirs Yet.

If you aren’t accelerating in 2026, be honest: what is AI doing to your market? And how can be grab that opportunity — and budget. It’s long past time to hide from it.

Not “should I add AI features to my product?” That’s a different question, and it’s the one everyone defaults to. The more interesting question is whether AI is expanding the universe of potential customers for what you already sell.

Some examples of where this is already happening:

More software is being created= more demand for DevOps, monitoring, error tracking, CI/CD, hosting, domain registration, payments, analytics, and every other tool in the developer stack. If you sell to developers, your TAM just expanded. Possibly by a lot.More content is being created= more demand for content management, rights management, distribution, SEO tooling, brand monitoring, and moderation. If you sell to content creators or publishers, your addressable market is growing.More businesses are being started by non-technical founders= more demand for incorporation services, accounting, payroll, banking, insurance, compliance, and every other piece of business infrastructure. The solopreneur wave is real.More customer interactions are being automated= more demand for quality assurance, analytics, conversation intelligence, and compliance monitoring of those automated interactions. The humans aren’t going away. They’re managing the AI that’s managing the customers.More data is being generated= more demand for storage, ETL, data quality, governance, and analytics infrastructure.

The founders who win in 2026 and 2027 won’t just be the ones building AI products. They’ll be the ones who recognized that AI was expanding their market and positioned to capture the increased demand.

What RevenueCat Did Right

It’s not enough to be standing in the right place. You have to be ready when the wave hits. RevenueCat did several things that put them in position:

**They invested in onboarding when it wasn’t obvious.**Before the vibe coding wave, they were already reducing friction in their developer onboarding flow. That meant when the surge hit, new developers could get to production fast. If onboarding had been a 2-week integration project, most vibe coders would have bounced.**They partnered with the platforms driving the wave.**The Replit integration means that when someone builds an app on Replit and wants to add subscriptions, RevenueCat is right there, natively integrated. They didn’t wait for developers to find them. They went to where the new developers already were.**They expanded into adjacent products.**Paywalls, Funnels, ad tracking, and more. Each one increases the surface area that captures value from the growing developer base. A developer who comes for billing stays for the full platform.**They stayed capital-efficient.**That gave the flexibility. RevenueCat’s hyper efficient PLG motion gives then a decade of runway. They didn’t have to worry about what it would cost to lean into the tailwinds.

The Math of Tailwinds vs. the Math of Features

Here’s why this matters strategically.

When you add an AI feature to your product, you might improve conversion by 10-20%. Maybe you reduce churn by a few points. Those are real gains, and you should pursue them. But they’re incremental.

When AI expands your TAM by 3-8x, the growth potential is a completely different order of magnitude. RevenueCat didn’t grow developers shipping first apps by 40% in a month because they added an AI feature. They grew because AI made their market dramatically bigger.

The best position is both: ride the tailwind AND add AI to your product. But if you’re spending all your energy on AI features and ignoring the tailwind, you’re optimizing the wrong thing.

Founders: Your #1 Job Is To Find Your AIs Tailwind

If you’re a B2B founder, here’s the exercise:

**Ste****p 1:**Map what AI is doing to the ecosystem around your product. Not to your product itself. To the inputs and outputs. Who creates demand for your product, and is AI making it easier for more of them to exis