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Superfy / 2026
End-to-End
AI-based Mobile app
Monetization & Premium
Design System
Motion & Animation
Sole Product Designer

Monetizing a free app - without losing its users
About project
Superfy was a rare thing: a free social app where Gen Z genuinely talked to each other. People spent 30–40 minutes a day there, and 85% of messages got a reply. The app had never charged anyone - and my job, handed down from leadership, was to build its first paid feature, globally, with no marketing budget behind it.
Superfy’s first revenue actually came from Super Bots — AI tools that ran on coins you could top up with real money. That proved people would pay to do things; Premium asked whether they’d pay to be someone.
Superfy’s first revenue: spend coins on a bot, hit zero, top up with real money. The proof people would pay - and the setup for Premium.
The approach
The real question wasn’t how to build Premium — it was what would make someone pay for an app they already loved for free. As the sole designer, I dug into what Gen Z genuinely wants badly enough to pay for, then delivered it without touching the parts of the free experience that made the app worth opening every day.
Premium became a paid tier built on self-expression: identity that shows up where others see it, with nothing taken away from the free experience. Built to feel like more — never a paywall.


The solution
three calls that shaped premium
01
Customization as identity, not decoration
We didn't build Premium just to "make things prettier." We built it for self-expression. On Superfy, your colors and themes are how people recognize you. It’s not a cosmetic add-on; it’s who you are.
02
Put the upgrade where the desire is
Instead of hiding Premium in a settings menu, we placed prompts right at the moments users actually want to do more. If someone tries to change a color and hits a lock, that’s exactly where the invitation belongs. It turns friction into value.
03
Visible to others, not just yourself
Most customization is a solo experience. We made Premium show up in public spaces like profiles and chat, so it works as a social signal. That external visibility is what gives a paid identity its true pull.
What I did
As the sole designer across this whole monetization push, I owned the strategy and the screens: the Super Bots coin economy and recharge flow, the Premium subscription and customization system, the upgrade moments woven through the free app, and a full production-ready design system with a parallel dark mode.



Results & Reflections
an organic revenue baseline
Engagement retained
Organic signups, no ad spend
Unique screens designed
01
The takeaway
Charging people for the first time wasn’t really about how many would convert. It was about whether it would break the app everyone already loved for free. It didn’t. Daily usage stayed at 35 minutes after launch, no drop at all. And the 50 people who upgraded did it with zero marketing behind them, so the demand was already there before we even asked. Nothing broke, and people still wanted in. That’s a real win for a first paid feature.
02
Profile and chat customization both landed well. People liked both. But visual customization alone wasn’t enough. Talking to users after launch made it clear: they wanted the chat itself to feel more interactive, not just better looking. Next, I’d look at small interactive moments inside the conversation itself, something Premium gives people to actually do together, not just something to look at.
02
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