To subscribe to the iMindMap Cloud, you will first need to purchase iMindMap Plus for the iPhone or iPad, this is a one off purchase that you can purchase through the App Store.
Click here for the iPhone App
Click here for the iPad App
The iMindMap Cloud can be purchased as a 30 day or 12 month subscription.
This is an in-app purchase that be purchased by going to settings, then "Buy".
Once purchased you can use it to sync unlimited maps between your mobile device and your desktop software by signing in to your iMindMap account.
To find out more about our mobile apps click here