App for Latest Updates

During the festival weekend of May 23–24, 2026, the mobile app will show updated information on the traffic in each building, e.g. tour length, waiting time, and notifications about unexpected events. The app also serves as an easy and safe tool to buy and book tickets to all Open House Prague events, including the accompanying festival events. It is available for free download for Android and iOS systems. The app will switch to festival mode in early May, but you’ll be able to book tickets to the accompanying events before that.