Context

I created Greencoin to make environmentally friendly habits easier and more rewarding—especially for students who want to take action but lack incentives or tools to do so consistently.

Problem

Recycling and sustainable habits often feel like thankless tasks, especially among students. I wanted to build a system that motivated environmentally conscious behavior through community and real rewards.

Solution

Greencoin is a mobile app designed for iOS that lets users log their recycling activity, compete with friends, and earn 'Greencoins'—a digital currency redeemable in a store or for donations. The app also includes eco-tips, recycling guides, and timers for sustainable habits like shorter showers.

Process

I designed the app using Figma to prototype the full UX/UI, and built it in Swift using Xcode. I also integrated Google and email authentication for secure login, designed gamified challenges, and developed the digital rewards system to track user activity over time.

Outcomes

I launched a polished, high-fidelity prototype that combined environmental education, habit tracking, and gamification. The app structure supports real-time user engagement, digital rewards, and future scalability across platforms like Android.

Reflection

Through this project, I deepened my skills in iOS development, learned to create meaningful user incentives, and saw firsthand how behavior design can support sustainability. I also practiced balancing technical constraints with creative feature design in a way that encourages real-world impact.