Thank you! Going Monday evening - Tuesday afternoon. Only have a few hours in the evening and a few hours in the morning so unlikely to make it on the tour.
Is it supposed to be safe? i.e. can I walk around in the night?
Thank you for your help and the taxi app!!
Reach out to the tour. They maybe are available for hire.
During my time living in Sofia, I worked nights so I cannot answer.
I found that in general there was not much to do within the city.
Public transportation within the city is cheap and good. You can use contactless to pay for your fare.
What time is your onward departure?