Go to the app store and download the Microsoft Remote Desktop, also known as the RD Client app.
Open the app called "RD Client" or "Microsoft Remote Desktop" via your home screen.
Tap on the orange "+" in the top right to add a server, then after click "Add PC."
Find the IP of your server via the ZestyServers Panel and enter it into the "PC Name" section and then click save. Formats you might generally see: - domain.com - subdomain.domain.com - 126.96.36.199
Tap on the server you have just added to connect to the server.
Enter in the username and password of your server found in your ZestyServer Panel. Default username is: Administrator
Voila! You have been connected to the server.