Sion

Sion is for rooted devices only, It allows the installation of init.d scripts without the need of navigating through the android file system moving files and changing permissions etc. it automates the whole process with just the click of a couple of buttons.

It also allows the installation of flashable.zip files from within the app (no need for booting into recovery etc).

Ideal for installing ota rom updates, which means you do not have to reflash gapps packages and wait for your apps to update and don't loose all your settings.

Sion also has light & dark themes configured from within the app settings and full user instructions.

Tips:
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You can install more than one init.d file at once just keep installing them until your ready then reboot for them to take effect, be careful, if you install the wrong script you may have to do a full wipe and reinstall of your rom.

Developers:
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Just provide your rom users with the ota.zip package instead of the full rom.zip file and link them to this app.
Some custom rom sources need a commit adding to prevent loosing root when installing ota's.
Send me an email and I will point you to the correct commit.