Re-platformed onto Cloudflare
- Migrated off a fragile legacy stack onto Cloudflare Workers
- SvelteKit + D1, with zero feature loss or downtime
- Dramatically faster and cheaper to run
back to portfolio
Varify Checkout App
Varify Checkout Testing is a Shopify app for A/B-testing and customizing the checkout. Merchants drop in elements like trust badges, reviews, and reservation timers, then measure which ones actually lift conversion.
Efficient, pragmatic execution of a Shopify app build. Working with Kevin was professional and goal-oriented from the very start, without ever losing the human side. The app we set out to build wasn't just delivered as expected; it exceeded my expectations.
Steffen SchulzCo-Founder
// What I built
{ Featured work }
What it took to rebuild the app and ship A/B testing.
A/B-testing engine
- Real statistical-significance testing built in
- Reusable checkout components merchants mix and match
- Trust badges, reviews, and reservation timers
Production-grade merchant UX
- Native Polaris experience inside the Shopify Admin
- Save-bars, image uploads, English/German localization
- GDPR webhooks, embedded auth, full Shopify compliance
// By the numbers
{ Results }
Measured in the first weeks after the Cloudflare rebuild.
<2.0s
Load times
12,300+
Lines of code
// Contact me
Ready to start your project?
You can expect a response within 24 hours.