How to add multiplayer/networking to strategy games on iphone?

I've been developing a iPhone strategy game and i don't have any knowledge on to back it with a server and be able to add multiplayer like seen in clash of clans, were the player can see the opponents "base" and be able to attack.

Are they tutorials out there? Also should i make my own dedicated servers? Or go through company?

Any info is much appreciated

Maybe you can try legend of the cryptids, they have a multiplayer function.

before you sign up for this free game, be sure to add me as a ref: Bellflower

If you want real-time processing, you'll need a dedicated server that runs a program you wrote 24/7. You can use your own computer as server for developing purposes though.

If you don't need real-time processing, all you need is a very basic webhosting package that supports PHP and mySQL. This method is much simpler and you should probably start with this. The basic idea is to send back and forth messages. Your game will send a POST request to the server (essentially what a form on a website does), and a PHP document will process this data by accessing the database and possibly return a message.
The only problem is that the server will be passive, meaning your game has to regularly update the "world situation". If you need the server to push events to your game, you're back with a dedicated server running at least a cronjob.