How to stream live location to another device?

Are there any tutorials that would help me in figuring out how to stream the users live location to another user of the app? I was looking at using pubnub but that seems like it could be an expensive way if the app scales in any way. I would like to do this in Swift.

Basically you do need a backend like PubNub - but there are a lot of choices. Did you take a look at Top 5 Parse Alternatives?

Is your app going to have any kind of revenue model, because if it does that’s a pretty good problem to have!

If not, the open source Parse server might be an option but you will still have to pay for hosting and bandwidth.