Strategy & Vision
Japan's Sponavi Baseball Express app serves one of the most engaged sports fan communities in the world — but its UX had accumulated years of incremental additions without strategic oversight. This redesign begins with a structured audit.
Execution & Design
Heuristic evaluation identified a consistent pattern: information users needed urgently was buried beneath information they needed occasionally. Navigation reflected internal product categories rather than the actual sequence of a fan's match experience.
Impact & Growth
Competitive analysis revealed that leading international sports apps with the highest engagement shared one philosophy Sponavi hadn't adopted: they treated the fan's emotional state as the primary design constraint, not the data taxonomy.
Conclusion
Three principles emerged to guide the redesign: prioritise the liv
