How to know user install app from apple store via invite link

Question

I am using JunoWallet+ for iPhone

https://itunes.apple.com/us/app/junowallet+tv/id597084729?mt=8

When I invite friends to use this app via email, my friends will receive an email with a link which used to install app from apple store. And when app was installed via this link, I will receive a gift code.

How to know if user install app from apple store via the invite link?

Answer 1

It's nothing to do with the install of the app or the download from the AppStore.

When you send an invite to a "friend" then the app will send the email address up to its server and the server will create a record something like...

Invite
------
FromUser
ToEmailAddress

Then when your friend receives the email address they install the app and sign up using their email address.

At which point the server will say "Hey, there is an invite associated with this email address. Lets give the person who invited them some credit."

In short, it's all server side stuff.