One Scream - Personal Safety 4+

Voice Activated Women's Alarm

OneScream Ltd

    • 4.1 • 386 Ratings
    • Free
    • Offers In-App Purchases

iPhone Screenshots



One Scream is your perfect Running partner.

With dark nights and early mornings, take us with you before you head out.

Turn on the detection before you leave the house, confident we’ll be right there with you.


One Scream is an AI enabled personal safety mobile application. One Scream is designed for moments of extreme distress.

Your instinctive response is what triggers the app to identify your location and send help to your loved ones. Simply keep your phone nearby, with the app on, and One Scream will do the rest. It even works from the bottom of your handbag.

-- One Scream does not listen to your conversations --
The app picks up either a panic scream or the safe word "One Scream".
Providing your phone has a signal, this wakes up the app to sound an alarm

Select, notify & add up to 3 people to be notified if you panic scream, your helpers when you need them most.
Allow One Scream to use your microphone so the app can hear you scream
Allow access to your location so the app can send it to your helpers
Allow push notifications so you can cancel an alarm if you need to
Press the Play button to turn on One Scream and Pause to turn it off

The app can be triggered by either a panic scream or the safe word "One Scream".

The user then has 20 sec to cancel if she is safe before her helpers are contacted and provided with her location information.
It even works from the bottom of a user's bag.

Detection - Safe Word and Panic Scream
Siren - On Detection
Notifications - To let you cancel the alert
Automated SMS - To alert your helpers
Automated Phone Call - To alert your helpers

Until setup is complete we can't contact your helpers.

We’re not just an app, One Scream is building a community, let us know what works and what doesn’t:
Chat in the app (click the speech bubble) or email


One Scream can’t hear you when you’re on a call, if your phone is off.

We are testing its capabilities if you are in a loud environment like at a concert or on a rollercoaster.

The app won’t work if you have no phone signal or are using another app that uses the microphone. It also can’t detect a scream if your voice is changed by the effects of alcohol or drugs.

One Scream does not record conversations or calls to Helpers.

We respect your privacy and exist only to empower women and teenage girls.

What’s New

Version 7.44

Better analytics

Ratings and Reviews

4.1 out of 5
386 Ratings

386 Ratings

Britney Lutt ,

Definitely recommend

I’ve been using One Scream for about 6 months now and it’s made a huge difference to my confidence. Especially when walking home from the tube station late at night.

Elzbelzspelz ,

More thinking needs to go in go this

I tested my scream using the “test scream feature” and I wasn’t loud enough. I also tried to scream with the app in the background and nothing happened. I see other reviews say the same and are getting the same automated replies from the developer saying “this app won’t respond to yells or loud noises” which is ridiculous and also the test screams advising to “scream as loud as you can” is not great, what will neighbours think? What if they phone the police thinking something is wrong. The app only reacts to ‘panic screams’ but naturally you scream in a panic if you aren’t panicking. And also what if a woman is grabbed from behind and a hand covered over her mouth, her screams would be muffled. What about a deaf lady who can’t hear anybody behind her , their screams aren’t always like normal screams due to them unable to hear their own voices
This app is a great idea but i think it needs to be redeveloped and have all kinds of screams detected

Developer Response ,

Hi, We are sorry you are so frustrated with the app. Please note that One Scream has been developed to help women in severe moments of distress when she has no viable option to reach for her phone. Research suggest that women tend to scream in those moments but of course this is not true for everybody and it is unlikely that every situation can be covered by a single application. We are here for you if you have any other questions or feedback. All questions we receive within the app (the speech bubble) are answered individually.

Baillid ,

Great idea, just sad it’s now only subscription

Really liked the idea of this app, tested it before and used it on walks home and felt safe. Thankfully didn’t have to use it.

However, the app is now subscription only. I understand the developers need to make a living, but other apps have got around this with ads etc. I’d prefer if there was a few ads before I left the house than to pay. I’m sure big companies would have an interest in a women’s only app which is focusing on personal safety.

And it’s sad that the reality of this will be that the app may not be accessible to those who actually need it most.

App Privacy

The developer, OneScream Ltd, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Contact Info
  • Contacts
  • User Content
  • Usage Data

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Location
  • User Content
  • Diagnostics

Privacy practices may vary based on, for example, the features you use or your age. Learn More

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