Counterspan app icon
One-time iPhone and iPad app

Counterspan

Build light, carry everything

Purpose-Built

A premium structural-physics puzzle game: place members, tune stiffness and prestress, then watch loads cross bridges that fail exactly where your reasoning does.

Core Features

  • Tap successive joint positions to draw structural members.
  • Depth and triangulation increase the modeled capacity.
  • Test only when a continuous load path is visible.
  • Lower material use improves a successful score.

Private by Design

No account, subscription, ads, tracking, third-party analytics, or developer-operated backend. Core features work offline, and your work stays on device unless you deliberately share or export it.

Counterspan current app interface

Use It Responsibly

Counterspan is a fictional entertainment game. Its visual systems, scoring, physics, maps, and terminology are designed for play and are not professional guidance.