> For the complete documentation index, see [llms.txt](https://docs.cubilock.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cubilock.com/mobile-apps/cubilock-brightness-app.md).

# Cubilock Brightness App

The brightness app is designed to control the brightness of the screen. 

## **Prerequisite:**

The CubiBright app needs the latest version of the ['Cubilock Companion'](https://docs.cubilock.com/mobile-apps/cubilock-companion-application) app installed on the phone.

## How to Setup?

Once the app is installed, open the app & perform the following steps:\
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**Allow required permissions:**

![](/files/eJmoTcHZLwQHUkzfk6wV)\
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**Agree to ToS & Privacy Policy:**

![](/files/ZU1dAAcbL4FvweaiK5cE)\
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**Allow system permission:**\
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![](/files/geVo4FxXYVngzUYf8XNe)\
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**Select 'CubiBright' app:**\
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![](/files/jm2mbOvw8lC7YCYRYz8J)\
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**Toggle the button to allow the permission:**\
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![](/files/IPllgVfXPiCvrMvG7cO4)\
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Move the slider to the right to '**decrease'** brightness:\
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![](/files/Ie2XlGgEFl5OF0R9iV8T)\
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**That's it, you can now press back & close the app:**\
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![](/files/SCwOSjYL2tIZfx5coabh)

### Auto-Launch on Reboot:

Auto-launch on reboot will only work if the Kiosk's latest version is installed. \
**Required Version:** 

<figure><img src="/files/AZnQmRD6sukH2za4WA5r" alt=""><figcaption></figcaption></figure>