Invasive neophytes are alien plants that quickly establish themselves in our nature and spread efficiently. They displace our native flora and threaten biodiversity in Zurich City. Invasive neophytes are partly responsible for the disappearance of one third of our plants. The designed app offers help in combating them in a playful way. Due to different approaches on that topic, it is also accessible for non-experts. The plants are identified with the help of your personal smartphone camera, their degree of danger is determined, and correct handling is suggested. With each plant combated, the user collects points to go higher in the user ranking. After three successful combats, a native plant is being planted in the City of Zurich. Thus the user not only actively contributes to the containment of invasive plants, but also ensures that native plants thrive.