This version doesn’t have a Play Store description, so we grabbed one from version 4.3.3:

Magic XDA output:

Install, Upgrade, Manage, Configure Universal Systemless Interface – Magisk in One App!
Here are some key features:

• Check Magisk version and updates
• Check the root condition
• Check SafetyNet
• Select the location of the boot image
• Advanced installation settings
• Manage superuser permissions
• Toggle logging and notifications for each individual app
• Activate / deactivate, remove Magisk module
• Manually add Magisk modules by selecting Magisk module zip files
• Download Magisk modules hosted on Magisk Repo
Magical skin
• Select the app you want to hide Magisk from
• Enable support for systemless hosts
• Enable / disable Busybox support
• Activate / deactivate the Magisk mask
• Tons of superuser settings

… and much more to come!