Case Study: Darby achieves a winning MVP in one month with Justinmind

Darby - Customer Case Study

Justinmind tells the story of product leader Kurt Stangl racing to bring Darby, a usage‑based insurance product, to market after a 2014 court ruling opened the Internet‑of‑Vehicles space to new competitors. With the marketplace suddenly competitive, a distributed team, tight timelines and the need to demonstrate a working product to investors and partners, Kurt faced the challenge of delivering a reliable MVP fast.

He used Justinmind to create low‑to‑medium fidelity functional prototypes in under a month, enabling backend teams to build APIs, designers to iterate quickly and the whole team to collaborate in real time. The prototype powered a successful investor pitch, accelerated alpha and beta testing, shortened development cycles and helped Darby launch—delivering a validated product and faster time‑to‑market for usage‑based insurance.

Darby

Kurt Stangl

Senior Product Manager