Planet Fitness investors have a new worry: artificial intelligence that can cancel your gym membership for you. Meta recently unveiled “Muse,” an AI agent designed to handle everyday chores like negotiating bills and managing subscriptions — and it can keep working even after you close the app. That raises a simple question for subscription businesses: if canceling becomes effortless, will more members leave?
According to UBS, sentiment on Planet Fitness has cooled since Meta's announcement. The investment bank notes that the risk of higher churn — the percentage of members who quit each month — is “manageable in practice.” But the episode highlights how AI agents are starting to reshape the economics of subscription-based companies.
Why AI agents threaten gym memberships
AI agents like Muse are designed to act on your behalf, handling tasks that usually require logging into multiple apps and navigating menus. For a gym chain, that means a member could theoretically instruct an AI to cancel their membership in seconds, without ever opening the Planet Fitness app or talking to staff.
That prospect is unsettling for investors because subscription businesses depend on sticky memberships. Even a small uptick in churn can have an outsized effect on the value of the member base, since it shortens the average time a customer pays before leaving. UBS points out that churn has stayed in a 3.5%–3.8% range, which is relatively stable. But the fear is that AI agents could make churn more sensitive to price increases or minor frustrations.
Planet Fitness has some defenses. UBS notes that the company can add verification steps that automation struggles with, such as in-app login checks, biometric confirmation, or a final tap from the member before a cancellation is processed. These extra steps not only slow down automated churn but also create a window for the company to offer a pause, a downgrade, or a targeted discount — tactics that tend to preserve the lifetime value of a member even if sign-ups slow.
The bigger picture: pricing power
For investors, the AI threat may be less important than the company's ability to raise prices. UBS flags that a potential billing tweak — charging members on the same day each month rather than 30 days after sign-up — could reduce accidental cancellations and lower churn further. That would be a meaningful improvement, especially if, as UBS suspects, a price increase on the Black Card tier could arrive sooner than the market expects.
In other words, the real debate may shift from AI to pricing power. If churn stays within UBS's cited range — or falls thanks to billing changes — then a modest price hike could have a bigger impact on earnings than any AI-driven cancellations. Steady churn is what makes same-store sales growth more durable, and that's what ultimately drives the stock.
The AI agent trend is not unique to Planet Fitness. OpenAI's Dots agents and Microsoft's push to run AI agents on Windows PCs show that these tools are becoming more common. Nvidia is even building tools to keep AI agents from going rogue. For subscription businesses, the lesson is clear: make cancellation easy enough to satisfy customers, but not so easy that it erodes the business model.
What it means for investors
For everyday investors, the key takeaway is to watch churn rates, not just headlines about AI. If Planet Fitness can keep churn in its historical range, the AI threat may be overblown. But if churn starts to creep up — or if the company's response to AI agents involves costly new verification systems — that could pressure margins.
Also keep an eye on pricing. A Black Card price increase could be a positive catalyst, but only if it doesn't push members to cancel. The interaction between AI-driven convenience and pricing power will likely determine how Planet Fitness performs in the coming quarters.
As always, this is not a recommendation to buy or sell any stock. It's a framework for understanding what matters in this story.
