free-key CityApp is an Android application developed by ITInnerebner that lets you surf the entire free-key network without any authentication. It's a one-time login process, and the system will automatically connect you to the network whenever you enter any free-key Wi-Fi zone. The best part is that you can surf the internet for free, without any time limit.

Apart from providing free Wi-Fi access, the app also keeps you updated with all the interesting events happening in the city you are visiting. You can get information about important dates and never miss out on any exciting event.

The app also serves as your personal tour guide, showing you nearby tourist spots and other famous attractions. It provides you with all the necessary information about the place you are visiting, including cultural highlights and famous landmarks.

Additionally, it lists nearby restaurants, bars, and cafes, giving you an insight into the local cuisine. The app also allows you to scan QR codes in shop windows, discover special promotions, and shop even outside business hours.

Overall, free-key CityApp is a must-have travel companion for anyone visiting a city with free-key Wi-Fi.