Apps that track activity are common, but using one as an instrument for civic participation is far more novel. In Wiesbaden, Germany, there's an immediate need for cycling infrastructure, but the concerns for simple safety measures like bike lanes fall on politicians with deaf ears. By mapping out where cyclists are riding and visualizing it in a gorgeous format, the app shows where the unofficial bike routes are and where permanent measures are needed. Rather than requiring a simple signature or click, it involves actually using the infrastructure that needs to be changed—a far more actionable strategy than any run-of-the-mill petition.