Sensory Plazma is a simple relaxation and visual effects app. It is visually stimulating and suitable for a range of abilities. Plazma is switch accessible.

Tap buttons to change effects. External bluetooth keyboard keyboard can also change effects.

Press 1 or space bar to change plazma type
Press 2 to change plazma flow speed
Press 3 or Enter key to change plazma colors
Press 4 to change number of plazma blobs
Press 5 to hide or show buttons

Plazma has no adverts, no settings screen and no in-app purchases.

Switch box compatibility:

Plazma can be controlled by assistive technology switches that produce character codes (1, 2, 3, 4, Space, Enter) - all produce different changes as listed above when using the keyboard.

To see videos and more Sensory Apps visit

What’s New

Version 1.53

Added updates for devices
Added "tap to hide/show icons"
Fill screen fully on iPhone11 Max
Updated keyboard control, 1,2,3,4 from external keyboard change app functions, 5 turns off buttons, Space and Enter mirror 1 & 3 for switches.

Ratings and Reviews

3.4 out of 5
5 Ratings

5 Ratings

Monkey Spasm ,

Unfortunately, it doesn’t work

I went into the app and nothing happened. I got a black screen and then it too me back to the wallpaper.

Developer Response ,

Sorry to hear this. Of course it should work, many many downloads already. It would be great to find out why it isn’t launching. If you could email support then we can ask more details about your device. We do try and keep the free apps updated and working best we can. Thanks

dngrau ,

App doesn’t work

Read through the comments but thought I’d give it a try anyway, wish I never bothered as the app DOESN’T WORK, complete waste of time.

App Privacy

The developer, Sensory App House Ltd, has 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 Not Collected

The developer does not collect any data from this app.

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


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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