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SIGNAL · 01

The engagement trap

The most useful mental health app is the one you need less over time. Most of the industry is built to do the opposite.

Morrígan2 min read
Morrígan — Signal 01, The engagement trap

Almost every app you use is measured by attention. Time in app, daily active users, sessions per week, streak length. For a game or a feed, that is a fair scoreboard. For a mental health product, it is a conflict of interest sitting at the center of the design.

The logic is simple and uncomfortable. If a company is rewarded when you open the app more, it will, consciously or not, build the app to be opened more. Notifications learn what pulls you back. Streaks turn a missed day into a small failure. The product becomes very good at occupying you, which is not the same as helping you.

What the evidence actually says

The industry's favorite retention tool is gamification: points, badges, streaks, levels. It is also one of the weakest links in the evidence. A 2025 review pooling dozens of randomized trials found that gamified features did not meaningfully improve mental health outcomes. People engaged more, and got no better.

What does hold up is quieter. Personalization, and what researchers call just-in-time adaptive intervention: support that arrives in the moment it is useful and then steps back. The effective version of this technology is not the one that keeps you scrolling. It is the one that shows up, helps, and leaves.

An app rewarded for your attention will never be the one that tells you to put it down.

The conflict you can feel

You have felt this from the user's side. The meditation app that guilts you about a broken streak. The tracker that turns a hard week into a wall of red. The notification that arrives precisely when you were, for once, not thinking about it. Each is the product optimizing for engagement at the expense of the person.

A nervous system under load does not need another source of urgency. It needs fewer. An honest mental health tool has to be willing to want less of your attention, not more.

A different scoreboard

So it is worth asking what success would look like measured the other way. Not time in app, but time not needed. Not daily active use, but a habit that has settled so completely you stopped noticing the tool that helped you build it.

That is the bet Morrígan is built on. Quiet by design, built to grow quieter as habits anchor. The measure is not how often you open it. It is how rarely you need to. It is a strange thing for a product to want, and we think it is the only honest thing to want.

Awareness of this conflict is spreading, from clinicians to regulators to the people who simply feel worse after the apps meant to help them. The products that earn trust over the next few years will be the ones honest enough to measure their own success by how little they are needed.

References

  • Liu et al. (2025). Review of gamification in mental health apps across dozens of randomized controlled trials.
  • Torous et al. (2025). On personalization and just-in-time adaptive interventions in digital mental health.

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