GMA Climbing App | Interactive route-setting and visualization for indoor bouldering walls

Small climbing gyms often lack digital tools for route management. Setters mark routes with colored tape, but this doesn't scale — climbers can't browse routes remotely, share beta, or track what's been set. Commercial route-setting apps exist, but they rely on generic hold libraries that don't match the actual wall layout.

RocòdromGMA was built to solve this for a local climbing club in Argentona, Catalonia. By combining computer vision annotation with a lightweight web app, every hold on the wall is mapped precisely and routes become interactive, shareable, and accessible via a single QR scan.

The pipeline starts with a high-resolution photo of the climbing wall. Each hold is manually annotated using Roboflow's segmentation tools, producing pixel-accurate COCO RLE masks for all 212 holds — including small footholds and irregularly shaped volumes.

This approach ensures holds are rendered with their true shapes rather than generic circles or rectangles, giving climbers an accurate visual representation of each route on the actual wall.

This web app gives the Grup de Muntanya d'Argentona a fully digital route-setting system at near-zero cost. Setters can define routes in seconds, climbers can browse and discover problems before arriving, and the club gains a living archive of every route on their wall. The annotation-to-SVG pipeline is reusable for any gym willing to photograph and annotate their wall.