Sketchflow raises $18M seed to build a cloud-native rapid-prototyping engine

Design · 4 min read

Sketchflow's cloud engine runs prototypes remotely and streams interactive previews to any device, claiming true fidelity on low-end phones and in constrained networks. The company says this removes the need for local builds and offers built-in analytics to see where users get stuck inside prototypes.

The seed round was led by Peak Capital with participation from several angel designers and product leaders; the funds will go toward scaling infrastructure, hiring engineering leads, and launching enterprise features like SSO and on-premise deployment. Sketchflow also teased an API for connecting prototypes to production feature flags.

Design teams that participated in the private beta said the streaming model dramatically sped up stakeholder reviews and user testing, but some flagged concerns about latency in highly interactive flows. Sketchflow plans to address this with regional edge nodes and an optional hybrid mode that offloads heavy interactions to the client.