How Many People Used Woebot? The Numbers Behind Its Rise and Retirement

The most citable figure for how many people used Woebot comes directly from its founder: in a July 2025 interview with STAT News, Alison Darcy said roughly 1.5 million people used Woebot over the years the consumer app was live. That figure holds up against a second, independent surface — Woebot's own current App Store listing, which states plainly that "1.5 million people have talked to Woebot." A journalist's interview and the company's own marketing copy converging on the same number is about as solid as sourcing gets for a product that no longer takes new signups.

What Made Woebot Popular in the First Place

Woebot launched in 2017, built by clinical psychologist Alison Darcy around structured Cognitive Behavioral Therapy delivered through daily check-ins and scripted exercises. Its own App Store listing cites 18 trials to date, including randomized controlled studies — a specific, checkable claim about the volume of research behind the product, distinct from any claim about what that research found for any individual user.

The appeal was consistency: a tool that showed up every day, asked the same kind of grounded question, and walked a person through a real CBT technique — catching a thought, testing it against the evidence, landing on a more accurate read of the situation. That is a genuine, well-studied exercise, and Woebot built its scripted conversations around exactly that structure.

The architecture behind that consistency is also the detail most people miss: Woebot was never running on a large language model. Its replies were pre-written and rule-based — a decision tree of scripted responses selected based on what a person typed, not a generative model composing something new each time. That was a deliberate choice. A scripted CBT tool is predictable and testable in a way a generative one is not, which is part of why the app could point to 18 completed trials rather than an open-ended, harder-to-study conversation. IX Coach, another AI coaching tool disclosed as AI rather than therapy, is built around the opposite intent on this exact point — generating its replies within the conversation and carrying memory forward across sessions rather than selecting from a fixed set of pre-written lines.

Explore: cognitive behavioral therapy · the thought record

Where the 1.5 Million Users Went

Woebot Health's own FAQ is direct about what happened next: "The Woebot app was retired June 30, 2025. New accounts can no longer be created, and previous accounts can no longer be accessed." The company anonymized remaining account data by July 31, 2025, and the deadline for requesting a copy of a personal conversation transcript was July 15, 2025.

Darcy's account to STAT News named a specific reason, not a vague strategic pivot: the cost and difficulty of meeting FDA marketing-authorization requirements, at the same time large language models were becoming the technology the field expected, and the FDA had not yet built a regulatory framework for evaluating a generative mental-health tool. In her telling, the underlying technology moved faster than the regulatory path for shipping it safely and directly to consumers.

The App Store listing that once served those 1.5 million users is, notably, still live today — version 6.6.1, last updated December 2025. But the listing itself explains why that is not a contradiction: it now states plainly that "to download you'll need an access code from your provider, employer or other Woebot Health partner. If you do not have an access code, you will not be able to use the app." The same listing now serves three enterprise-distributed variants — Woebot for Adults, Woebot for Adolescents, and Woebot for Maternal Health — through health-system partners including Akron Children's Hospital, Virtua Health, ChristianaCare, and Hackensack Meridian Health. The self-serve consumer path that built the 1.5-million-user figure is gone; the enterprise distribution channel that replaced it is not.

How Woebot's Numbers Compare to Other AI Mental Health Apps

Woebot was not the only chatbot-style mental health app built in that era, and the two products most often searched alongside it illustrate two different outcomes for the same basic idea.

Wysa remains available and free to start, with no account required — a library of more than 200 CBT, DBT, and mindfulness tools, backed by 8 clinical trials, 6 service evaluations, and 13 real-world studies by Wysa's own count, plus FDA Breakthrough Device Designation received in 2022. Wysa's own FAQ is direct about its limits: the app "is not a substitute for professional medical advice" and "is also not recommended for use in crisis situations." Paid tiers run $99.99/month for tools plus a human Wellbeing Coach, or $99.99/year for the tools library alone.

Youper took the opposite path from Wysa and the same path as Woebot: its own shutdown notice states that app and account access end September 30, 2026, auto-renewing subscriptions are already disabled, and starting October 1, 2026 all accounts, chat histories, and personal data are permanently deleted from Youper's servers. Youper states that data will not be sold or transferred to another company. Two of the three products in this comparison — Woebot and Youper — are chatbot-era mental health apps that ultimately shut down or restricted access; Wysa is the one still standing, and it did so by staying free and anonymous rather than pursuing FDA clearance for a clinical claim.

The Common Thread: Scripted, Not Generative

Woebot, Wysa, and Youper all share the same underlying architecture that Woebot's founder pointed to as part of why the consumer product became hard to sustain: pre-scripted, rule-based conversation trees rather than a generative model that composes a new reply and carries what you have told it across sessions. That design choice bought predictability — a fixed decision tree is easier to run a randomized trial against than an open-ended generative conversation — but it also meant none of the three could build a continuously evolving understanding of one specific person's history the way a generative, memory-carrying system is built to do.

IX Coach is built the other way: a generative model, disclosed as AI and explicitly not therapy, trained on twenty years of one practitioner's cross-modality experience across psychological, coaching, and spiritual methods, synthesized into a single coaching voice. It carries memory of a user's history across sessions rather than selecting the closest pre-written line from a fixed set — a structural difference from the chatbot architecture that defined Woebot and its era, not a claim about outcomes for any individual person.

Explore: self monitoring · structured reflection

What This Means If You're Comparing Options Now

If Woebot's user numbers are what brought you here — whether out of curiosity about a product that reached 1.5 million people, or because you used it yourself and are now looking for what comes next — the honest starting point is that no single product has replaced the exact arrangement Woebot offered: free-to-the-individual, employer- or insurer-mediated, narrowly scoped CBT exercises delivered on a schedule.

What has changed since 2017 is the technology available to build a coaching tool on top of. A scripted decision tree, however well-tested, cannot ask a genuinely responsive follow-up question the way a system built to track your specific, ongoing story can. Motivational interviewing — evoking a person's own reasons for change rather than supplying a pre-written line — depends on responding to what the person in front of you actually said, which is difficult to fully script in advance and is a different kind of task for a system built to carry real context forward.

Explore: motivational interviewing

How many people used Woebot?

Roughly 1.5 million, per founder Alison Darcy's July 2025 statement to STAT News, independently corroborated by Woebot's own current App Store listing, which states plainly that "1.5 million people have talked to Woebot."

Is Woebot still gaining users?

No. The consumer app was retired on June 30, 2025 and new individual accounts can no longer be created. The App Store listing remains live but requires an access code from a provider, employer, or Woebot Health partner — there is no public signup path for new users.

How much funding did Woebot Health raise?

Reported figures vary by source and date rather than converging on one number: Crunchbase's funding-round total lists $123.3M, a March 2022 Behavioral Health Business report cites $123M following a $9.5M Bayer investment, and a July 2021 release on the $90M Series B put total funding at $114M as of that date. No source found states a figure of $107.5M specifically, and this page does not use one — where sources disagree without a single reconciling figure, the honest answer is the range, not a manufactured precision.

Frequently asked questions

Research

• Darcy, A. (interview), (2025), Woebot therapy chatbot shuts down; founder says AI is moving faster than regulators, STAT News — Primary source for the ~1.5 million user figure and Darcy's own account of why the consumer app shut down. verified 2026-09-13
• Woebot: The Mental Health Ally — App Store listing, Apple App Store — States verbatim in its own description that '1.5 million people have talked to Woebot,' and, separately, that downloading requires an access code from a provider, employer, or other Woebot Health partner. verified 2026-09-13
• Woebot Health FAQ, woebothealth.com — States verbatim that the app was retired June 30, 2025, and that new accounts can no longer be created and previous accounts can no longer be accessed. verified 2026-09-13
• Wysa FAQ, wysa.com — States verbatim that Wysa 'is not a substitute for professional medical advice' and 'is also not recommended for use in crisis situations.' verified 2026-09-13