MeinJena app is your everyday companion for Jena. Discover features around mobility, living, news, events, waste disposal calendar and even more. Extra benefit: access to the free MeinJena WiFi. All features in detail: 1. MeinJena WiFi. Surfing without costs. MeinJena allows you free access to the internet. There are several hotspots where you can use the WiFi: www. Meinjena.