Is a mental health app a medical device?
Mental health apps live in a grey zone. What you say about your app matters more than what it actually does.
General information only. This guide does not constitute legal, regulatory, or professional advice. Regulatory classification depends on the specific facts of your product, your intended market, and how your software is described and used. Rules change, and the information here may not reflect the most current guidance. If you are unsure whether your software is a medical device, seek advice from a qualified regulatory consultant or legal professional before making any compliance decisions. QualiHQ makes no representations about the accuracy or completeness of this content and accepts no liability for any decision made in reliance on it.
Most mental health app founders assume the regulatory question is about what their app does. It is not. It is about what they say their app does. Two apps with identical features, identical code, and identical user experience can sit on opposite sides of EU MDR based entirely on the words in their App Store description.
This is not a technicality. It is the central mechanism of how medical device classification works for software, and it catches a lot of founders off guard -- particularly in mental health, where the line between "wellness support" and "clinical intervention" is exactly where many products land.
Intended purpose is not what you intended. It is what you said.
EU MDR defines intended purpose as the use for which a device is intended according to the data supplied by the manufacturer -- labelling, instructions for use, promotional or sales materials, and statements made by the manufacturer. Regulators look at all of it.
If your onboarding asks users to select their mental health diagnosis. If your marketing says your app "helps manage depression." If your blog posts describe clinical outcomes from randomised trials. If your sales deck says "proven to reduce PHQ-9 scores." You have built an intended purpose from scattered words, and that intended purpose may be medical.
This is not hypothetical. The MHRA in the UK reviewed Limbic, a mental health app, and found that despite its wellness framing, the intended use as a clinical screening tool made it a medical device. The product did not change. The review of its intended purpose did.
Where the line actually sits for common features
Most CBT exercises, breathing techniques, and mindfulness content are clearly not medical devices when offered as self-help tools. The complication arises in three specific situations:
When the output is personalised and clinical
A generic CBT workbook is not a medical device. An app that takes a user through validated clinical questionnaires (PHQ-9, GAD-7, AUDIT) and produces a personalised score with recommendations for next steps is functioning as a screening tool. The scoring and the recommendation together constitute clinical output.
When it is positioned for clinical use
An app used by individuals for personal stress management is in a different regulatory position than the same app sold to NHS trusts to support patient treatment programmes. Reasonably foreseeable clinical use shapes intended purpose, even if your primary market is direct-to-consumer.
When claims reference specific conditions
Saying your app reduces stress is wellness language. Saying it "significantly reduces symptoms of generalised anxiety disorder" or "is effective for treating mild to moderate depression" is a medical claim. NICE guidance and clinical trials are great for credibility. Quoting them without understanding they become part of your intended purpose is a regulatory trap.
The practical test: read your own materials as a regulator would
Pull up your App Store listing, your homepage, your onboarding flow, and your most recent fundraising deck. Read every claim. For each one, ask: does this describe a medical purpose (diagnosis, treatment, monitoring of a condition) or a wellness purpose (general support, self-improvement, stress management)?
If your app is regulated
A regulated mental health app is not a dead end. Established providers like Priory Digital Health -- the digital arm of one of the UK's largest mental health groups -- operate in regulated clinical settings and have built the compliance infrastructure to support it. They did so intentionally, with quality systems and clinical evidence in place from the start.
If you are getting into this space, the worst position is discovering your intended purpose is medical after you have made clinical claims to customers and investors. Get clarity early.
QualiHQ is built for founders in exactly this position -- tools to build your ISO 13485 quality system, capture software development evidence under IEC 62304, and maintain the documentation a notified body will ask for. Start before you need it.
Common questions
Is a CBT app a medical device?
Not automatically. A CBT app positioned as a self-help tool without clinical claims is generally not regulated. The same app positioned as a clinical tool for treating diagnosed depression would be. The framing in your marketing, onboarding, and documentation is what regulators look at.
What about apps used by therapists with patients?
If a therapist uses your app as part of clinical care and your app influences decisions about that care, it is likely a medical device regardless of how you market it. Intended purpose includes reasonably foreseeable use, not just your stated intent.
Is Woebot a medical device?
Woebot has gone through FDA clearance for specific indications in the US. The regulatory status of any app depends on the specific claims made and the markets you target. Apps with clinical evidence that make clinical claims in regulated markets typically need to be cleared or registered as medical devices.
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