Subscriptions
50k+
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Case Study
Sustainability / Climate Action / Carbon Offset Platform / 2024
Terrapass
Terrapass has been helping individuals and businesses offset their carbon footprint since 2004. Their subscription platform needed to do something most climate-focused products struggle with: make the abstract feel concrete. We redesigned the subscriber experience to make impact visible, credible, and worth renewing.
WordPress WooCommerce Node.js MySQL Shopping Cart
Tons Offset
100k+
Uptime
99.9%
The platform now supports over 50,000 active subscriptions and has facilitated the offset of more than 100,000 tons of carbon. The billing infrastructure maintains 99.9% uptime, and the impact dashboard has become one of the strongest retention drivers in the customer lifecycle.
Project Overview
Designing a focused digital experience
Carbon credits are inherently intangible — you're paying to reduce emissions you can't see, through projects that feel distant. Terrapass needed its platform to bridge that gap by giving subscribers a genuine sense of what their contribution was actually doing. The checkout and billing system also needed to be reliable enough to handle tens of thousands of active subscriptions without hiccups.
The work balanced conversion strategy, clear information architecture, and performance optimization so the site could support business growth immediately after launch.
Approach
How the project was executed
Trust Framework
We built the content strategy around Green-e® verification as the anchor — because third-party validation is what turns a good intention into a documented, credible act. Every offset ton is independently verified and surfaced transparently.
Experience Design
We built a React-powered footprint calculator that lets users estimate their impact across air travel, personal vehicles, and home energy in under a minute — removing the most common barrier to signing up.
Subscription Engineering
Recurring billing was architected on Stripe with a PostgreSQL backend for real-time impact reporting. The system was built to scale and recover gracefully from payment failures without affecting the subscriber's offset record.
Retention Strategy
We built an impact dashboard inside the customer portal that connects each subscription to the actual projects it's funding — solar installations, methane capture, reforestation. Subscribers stay because they can see what their commitment is building.
Visual Highlights
Selected interface moments
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