Spent 4 months building a referral system from scratch. Here’s what went wrong (and what we built instead)

We spent 4 months trying to build a custom referral system for our mobile app. The plan was simple: let users invite friends, track referrals, reward them.

But the process turned out to be way more complex than expected.

We had to solve things like:
– generating and managing unique codes
– tracking invites across platforms
– handling edge cases and potential abuse
– making sure rewards triggered at the right time
– and building backend logic that could handle it all

Even after months of work, it took constant attention and felt like it pulled focus from our core product. That’s when we realized — this isn’t just our problem. Most teams either go through the same, or avoid adding referrals at all.

So we built something better.

WinWinKit is a simple referral tool made for mobile apps.

It gives each user a referral code, tracks invites, handles reward logic, and takes just a few hours to set up:

• Clean integration with SDK or API
• First 100 referrals are free
• No custom backend logic

If you’re working on an app and thinking about adding referrals, I’d love to hear your experience. Or if you're curious to try WinWinKit, happy to share more.