I have been working with a ton of different referral programs for the past year and Growsurf takes pretty much all the development work out of setting up a seemingly integrated referral program.
I was set up in less than 12 hours, and that includes making user journeys and finishing design and copy of the landing pages.
Most of what I have been building myself over tons, and tons of iterations are available within the platform, and its very easy to use.
I will continue to push for more features, specifically towards ongoing referral programs, as this seems to be missing in the platform as of now. Also, translation files set up with a platform like Crowdin or an open translation community would be greatly appreciated.
To summarise:
hats off to you guys, for building what I think is a very unique product.