Calm Harm – manage self-harm

4.3
2.63K reviews
Content rating
Rated for 3+
500K+
Downloads
Content rating
Rated for 3+
Learn more
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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.
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

4.3
2.52K reviews
Amiss Covert
March 28, 2026
I've been using this app for a while now..its been helpful but, I want to check up on something as to why the home screen of a character going along the wave and the whole scene of that is gone..and i dont know if there have been changes, but I wish it was still there. I often envision myself that despite the waves feel terrifying, at least an octopus or a starfish is there but I no longer see it. please check up on it, thank you:<
Did you find this helpful?
stem4
March 30, 2026
Hi there, thank you for your feedback! We're sorry to hear that you're having trouble with the home screen. Thank you for bringing this to our attention - are you please able to email over a screenshot of what you're experiencing to calmharm@stem4.org.uk and we can look into this for you? Thank you.
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
Did you find this helpful?
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!
Malice Bennett
April 26, 2026
This app helped me so much. I got a new personal best! I haven't self harmed in over a month and it's because of this app. no matter what's stressing you out this app will help. there are so many activities to do based off of what will help you, for example two categories would be comfort and distract but there's so much more. one of the activities is literally : lie on the floor in the dark and listen to music. that's my favourite one. this app is the most amazing thing I've ever found
8 people found this review helpful
Did you find this helpful?
stem4
April 28, 2026
Hi, this is so lovely, thank you! It's great to hear that you like the app and have found it helpful. If you'd be happy sharing your personal story to help reach others who might benefit (can be anonymous), we'd love to chat with you, or if preferred you could send a write-up or recording. Please email calmharm@stem4.org.uk if so. Thank you again!