HalkEco is a digital wellness initiative by Halkbank that rewards users for healthy lifestyle choices like walking, running, or cycling, transforming everyday activity into measurable environmental and financial impact. The app encourages sustainable behavior by gamifying movement and offering tree-planting rewards for eco-conscious habits.

As a freelance developer under my studio Idea Shark, I contributed to the iOS app’s development. Building and optimizing the user experience to make tracking movement feel engaging, seamless, and rewarding.

Halkbank wanted to launch an app that felt more like a lifestyle movement than a corporate utility. The goal was to:

Connect user activity to environmental impact in a tangible way

Create a frictionless experience for step tracking and eco-goal setting

Encourage daily engagement without feeling like a fitness app

Reflect Halkbank’s green brand values throughout the experience

Supported HalkEco’s successful launch with thousands of downloads and highly positive user feedback

Contributed to a platform that has led to thousands of trees planted based on user participation

Helped reinforce Halkbank’s brand as an environmentally responsible institution

Enabled long-term community engagement with a meaningful, habit-forming app experience

iOS App Development:Developed and optimized native Swift components for the iOS app to ensure smooth performance and accurate pedometer data collection. Integrated HealthKit to track step counts and movement efficiently.

Gamified Interaction Flows:Helped build the step tracking logic, eco-points system, and milestone feedback loops. Users were rewarded for reaching walking goals with trees planted in their name.

Eco Progress & Rewards UI:Contributed to screens that visualized environmental progress trees planted, distance covered, and CO2 savings encouraging continued engagement through real-world impact.

Collaborative Delivery: Worked closely with the backend team and product stakeholders to align API integrations and ensure accurate real-time data syncing across platforms.

Small actions when gamified well can drive long-term behavior change

Green branding needs to be reflected in both visuals and functionality

Working on a mission-driven app taught me how to blend lifestyle design with measurable social impact