Ltq 98 app and panel manager, that allows you to add your very own appstore, send notifications, push updates and control your dns, you can add multi dns to this panel and its works great as i have tried and tested but any incorrect data in any dns will stop them all from working.
this apk also allows you add a link to signup to your service on the login page if you have one that as also been tested by myself and works a treat.

i have added all the instructions for everything in the download link
enjoy