Calm Harm – manage self-harm

2.64K reviews
Content rating
PEGI 3
500K+
Downloads
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About this app

The urge to self-harm is like a wave. It feels the most powerful when you start wanting to do it.

Join over 2 million users and learn to ride the wave with the free Calm Harm app by choosing activities from these categories: Comfort, Distract, Express Yourself, Release, and Random.

There is also a breathing technique to help be mindful and stay in the moment, regulate difficult emotions and reduce tension.

When you ride the wave, the urge to self-harm will fade.

Calm Harm is an award-winning app developed for teenage mental health charity stem4 by Clinical Psychologist Dr. Nihara Krause, in collaboration with young people, using principles from the evidence-based Dialectical Behaviour Therapy (DBT). It is built to NHS standards and approved by ORCHA.

Calm Harm provides some immediate techniques to help break the cycle of self-harm behaviours and explore underlying trigger factors; build a ‘safety net’ of helpful thoughts, behaviours and access to supportive people; and provides the opportunity to journal and self-reflect. It also provides signposts to help.

The Calm Harm app is private, anonymous and safe.

Please note that the Calm Harm app is not a substitute for the assessment and individualised treatment by a health/mental health professional.

Please also note that if you forget both your passcode and security answer, these cannot be reset as we do not create user accounts. You will need to reinstall the app, losing any previous data.

Calm Harm has been given a new look and updated to the latest technology. We’ve listened to users and enhanced the app’s functionality, adding the ability to make journal entries at any time and the option to select multiple reasons for your urge to self-harm after completing an activity. We’ve also updated and expanded the choice of activities based on user suggestions.

What else is new?
• Users can add activities to a ‘Favourites’ list.
• The mascots are now enhanced by animations throughout the app.
• Choose from a wider selection of colour schemes.
• Easier access to immediate help via the breathe activity, both during onboarding and in the footer of the app itself.
• We’ve removed the option to set a passcode to access the whole app and, instead, the self-monitoring section can now be passcode-protected or accessed via facial recognition / Touch ID.
• Tours explaining key features of the app.

What is staying the same?
• The app is clinically-developed by a Consultant Clinical Psychologist in collaboration with young people.
• Optional passcode-protection (though now only for the self-monitoring section).
• Users choose 5-minute or 15-minute activities (from the same categories as before), counted down by a timer, that are based on the principles of a treatment technique called Dialectical Behaviour Therapy (DBT).
• Users can still record experiences in the log section (now called My Records) and see information such as weekly average urge strength, most common urges, and most active time of day.
• The app is completely free, with no in-app purchases required.
• Users are shown signposts to further help.
• Our commitment to data privacy and user anonymity.
• No need for data or WiFi access to use the app.
• Built to UK National Health Service standards and approved by ORCHA.
• Users can still personalise their experience.
• The option to hide trigger activities.
Calm Harm provides tasks that help you track & resist self-harm urges
Updated on
Oct 30, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Device or other IDs
  • This app may collect these data types
    Location, Personal info, and Device or other IDs
  • Data is encrypted in transit
  • Data can’t be deleted

Ratings and reviews

2.54K reviews
Calen Eledh
March 5, 2025
It's hard to explain how useful this app has been to me. Some of the activities really help control urges. A few of them are not for me, but being able to favourite ones that have helped is good. I have found that sticking to the same few favourite has less of an effect, and trying new ones can be a little more distracting when urges are very strong. The breathe activity is perfect. Not only have I found it useful for urges, but also it can help stop panic attacks before they take hold.
51 people found this review helpful
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stem4
March 6, 2025
Hi Calen, thanks so much for taking the time to leave such a lovely and helpful review! It's so great to hear that you've found the app helpful and how it works best for you, and your feedback is very useful for us to know. Thanks again, and wishing you all the best.
A Google user
January 7, 2019
So far I love the app. I like that you can change the colours and personalise it. I do have one suggestion, after riding a wave could you make it possible to pick more than one reason for wanting to self harm? Sometimes it's more than just one thing, it could be feeling sad and stressed.. Thanks. This app is really nice, I'm glad I found it.
102 people found this review helpful
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stem4
January 10, 2019
Hi Phoenix, thank you for your kind words. I have passed on your feedback to our development team for review for a future app update. Thank you for the suggestion.
Xander Hunter
March 3, 2026
This has been a really helpful and motivating tool for me. What I'd love to see added are custom activities, because sometimes I want to log what I've done on my own time that's helped but can't find an equivalent activity in the app. It would also be useful when a streak does break for the app to ask the same questions as after an urge (i.e., how strong was it, what was the reason).
5 people found this review helpful
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stem4
March 3, 2026
Thank you for your review and feedback! Unfortunately, for clinical safety reasons we don't allow users to create their own activities, as they all need clinician approval. You can suggest new activities to us via the option in the app menu, though. And we have logged your idea for streak-end feedback to review for a future update, thank you!