The evidence, and where it runs out.

Exposure and response prevention is the first-line approach in published clinical guidance for obsessive-compulsive disorder. Every claim below links to the document it came from, each one read against the live source on 29 August 2026.

What is missing is evidence about this app. That section is up the page rather than buried at the bottom of it.

What the guidance actually says.

None of this is our research. Where a source is careful, the sentence here keeps the care rather than rounding it up into something better.

Intrusive thoughts

Almost everybody gets them

NICE says thoughts like these “are occasionally experienced by almost everybody”.NICE CG31 The International OCD Foundation puts it the same way: most people get unwanted intrusive thoughts, notice them, and move on.IOCDF

First-line treatment

Practising is what the guidance recommends

CG31 recommends cognitive behavioural therapy including exposure and response prevention, at every severity. For children it calls that the treatment of choice.NICE CG31

The IOCDF puts that practice and medication together as the treatments with the most research behind them.IOCDF CG31 rates an SSRI comparably efficacious where impairment is moderate. So this is the strongest thing you can practise, rather than the strongest treatment there is.

Habituation

The feeling drops if nothing answers it

Stay with the thought, hold off the compulsion, and the anxiety falls without you doing anything to it. The IOCDF calls that drop habituation.IOCDF

Graded practice

It starts small, on purpose

The full guideline’s glossary says this work is “usually conducted in a progressive way”, starting with what produces relatively low distress.NICE CG31 (full) The recommendations themselves never mention grading, which is why this claim cites the full guideline underneath them.

Reassurance

The answer is what brings it back

Every time reassurance relieves doubt, it reinforces the belief that certainty is necessary.NOCD The IOCDF describes compulsions the same way: they reinforce the brain’s idea that you must be in danger.IOCDF

Fighting it

Arguing with a thought feeds it

The full guideline says suppression and distraction can reduce anxiety briefly. Then the thought comes back more often, in a rebound.NICE CG31 (full) NOCD describes going over it in your head the same way. It circles without resolving, and getting out means tolerating the uncertainty rather than settling it.NOCD

Randomised trial

Two ways of running it came out level

Adding acceptance and commitment therapy to exposure work was tested against exposure work alone. A multisite randomised trial, 58 adults, blind assessors, six months of follow-up.Twohig 2018

Both were “highly effective treatments for OCD”, and no difference was found in outcomes, acceptability or how people engaged with the practice. So nothing here claims one frame beats the other.

CG31 was published on 29 November 2005 and last reviewed on 11 July 2024, when NICE confirmed it still stands. A surveillance note in February 2019 flagged several areas for update. If NICE replaces it, every claim above gets walked again.

How the app follows it.

Citing guidance is easy. Here is what the product does with it, line by line, with the finding each one comes from. How it works walks through the same thing from the inside.

It will not answer the question.
Answering is the compulsion, and settling the doubt teaches the brain the doubt was worth having. The coach names the move instead.NOCD
It stays with you while the feeling drops.
A Ride It Out session keeps you with the spike and asks how loud it is, rather than resolving it. That drop is the habituation above.IOCDF
Practice is a ladder, and you approve every rung.
Steps run from noticeable to big, and reorder as each one gets easier. That is the progressive practice the full guideline describes.NICE CG31 (full) You pick each step, and you can decline any of them.
It tells you to take the ladder to a clinician.
The IOCDF describes this work as clinician-guided at first, though you eventually learn to run your own exercises.IOCDF
It holds you to limits you set yourself.
Something you can ask at any hour can become the thing you check. You set how often and how long; tightening applies now, loosening waits 24 hours.NOCD
It watches the thought rather than argues with it.
Noticing an obsession as it goes past, instead of debating it, is a skill that trial taught inside the practice.Twohig 2018 It is a supported way to run the work, and the trial found no outcome difference between running it that way and running it plain.
Every clinical claim carries its source.
Inside a lesson the citation sits in the sentence making the claim, not in a footer nobody scrolls to. This page is that same list, in one place.

What we cannot tell you yet.

The method has published evidence behind it. This app has none of its own yet, and you should know that before you pay for anything.

  • No outcome data. Nobody has used this long enough for there to be any, and we have not run a trial of our own. An outcome number for this app today would be one we made up.
  • No independent clinical review. No clinician outside this project has reviewed the lessons, the prompts or the safety copy. Our terms say the same, and when that changes both pages change.
  • No way for us to watch and find out. What you write is sealed on your device, and we do not hold the key. There is no session content here for anyone to read. What we can and cannot see sets out the whole of it.
  • Two counters, with no person attached. One counts crisis cards put on screen. The other counts hits from the word filter that runs on your device. That tells us whether the filter works, without us seeing what it matched. Neither carries an account, and a per-user version is ruled out by design.
  • What we intend to measure. Whether practice leaves people less stuck, in a shape that never needs their content. We have not settled how. Naming a method we have not chosen would be the overclaiming this page exists against. When there are results, they go here, including the ones that do not flatter us.

What would make us change this page.

So you can hold us to it, here is what moves any of the above.

  • NICE replaces or withdraws CG31. Every claim gets walked again against whatever replaces it, and anything that no longer holds comes off.
  • A source says something narrower than we did. The sentence gets rewritten to match the source, or it goes.
  • A clinician reviews this and disagrees. Their finding goes on this page, under their name, whether or not it suits us.
  • The outcome numbers come back weak. They get published here anyway. A page that could only ever carry good news would not be worth reading.

Every source on this page.

Seven documents, none of them ours. The guidance and the foundation pages are free to read in full, and the trial links to its listing on PubMed. The resources page lists them beside the videos and the services that can put a clinician in front of you.