Germany is Onyx Cookware’s most important and most challenging market.
Subscriber numbers in Germany were declining and their existing setup wasn’t enough. Most email opt-ins came through checkout, but only 6% confirmed their signup with double opt-in.
They had explored what was possible in their existing tools, including Klaviyo forms, but found both the functionality and the strategic support lacking. They wanted to guide users in a way that matched their brand—not just display a generic popup.
Melina Amorsen Strøm and Stine Hemmer-Havnsgaard from Onyx Cookware led the effort to change that. Their goal was clear: increase number of subscribers by at least 30% in a way that engaged visitors without compromising on GDPR compliance or user experience.
“With Sleeknote, we collect leads that not only sign up but actually confirm [their email with double opt-in]. That’s a big deal for a market like Germany.”
To reach their goal, Melina and Stine needed a new approach. They chose Sleeknote’s Spin to Win format as a more interactive way to collect subscribers.
The campaign was carefully designed to meet Onyx Cookware’s internal guidelines:
Melina and Stine came up with a spot-on prize for the German market and made sure visitors understood that they had to confirm their email address to enter the competition.
Their Sleeknote campaign worked seamlessly with Shopify and Klaviyo, and they were able to launch it without involving developers or external resources.
Stine and Melina built a campaign that matched their brand and turned a declining trend into a standout success—without compromising on compliance or user experience.
“We considered other tools and what we already had in Klaviyo. But our ambition wasn’t just to create a standard popup—we wanted to guide the user in a way that matched our brand and conversion journey. Sleeknote offered features that would’ve cost us three times as much elsewhere.”
Melina and Stine aimed to increase their subscribers by 30% and with Sleeknote, they outperformed their goal at every level.
Campaign results:
Beyond the numbers:
“Sleeknote gave us what we were missing: the ability to collect qualified leads directly on our site—in a way that fits our brand, converts well, and delivers visible results. Our first campaign didn’t just exceed expectations—it also helped generate internal excitement and support for email as a channel. It’s the best tool we’ve tested in this category.”