We created an app that serves as an interactive guide in the East Slovak Museum in Košice. The visitor needs to download the mobile application called Alone in the Museum from the App Store or Google Play. As soon as he enters the museum with the application switched on, the tour may begin. Sensors located in the museum detect the location of the visitor and thanks to the voice guide in the application, he is being served interesting information. The museum itself offers a special extension for people with complete or partial visual impairment. In cooperation with the Union of the Blind and Visually Impaired of Slovakia, we have created special controls for such people. The application is supplemented by detailed descriptive traces of space and objects around, including navigation in the museum. In 2018, the app won the Via Bona award in the Social Innovation category.