Case Study: Wonderbly achieves higher conversion and saves engineering time with Stripe Checkout

Wonderbly chooses Stripe Checkout to maximize efficiency and conversion

Wonderbly creates highly personalized children’s books—over six million sold—that teach language and literacy. As a small company with a lean engineering team, it needed a payments solution that maximized conversion, handled complex flows and complied with Europe’s Strong Customer Authentication (SCA) rules, while minimizing development and maintenance effort.

Wonderbly implemented Stripe Checkout, gaining built-in features like Apple Pay, Google Pay, promotion codes and eight localized checkout experiences, and saving over two weeks of engineering time. An A/B test showed conversion lifts (3.2% in the U.S., 10.6% in Spain) versus their custom page, prompting a full switch to Checkout and continued year‑on‑year optimization.

Wonderbly

Tom Waterfall

VP of Product