Here is an app for sharing referral links anonymously: http://onelink.to/v82mmk
Unlike Invitation.Codes, this is an app that that you must install, which lets you anonymously post your "invite friends" links from other apps, but you must have each app you want to share downloaded on your device to share them. You cannot send referral links for websites without an app for the website. Referral App will show your referral links to other anonymous users. The other users may help you get a referral bonus by signing up with your link.
The app also lets you help other users with their signup links. It keeps score of how many times you have given and received help. If you help others more than they help you, the app will reward you by showing your own links to more people.
It's time to get your Invitation.codes account too 😎