Are trains in London included in a daily cap fare ?

Are trains in London included in a daily cap fare ? So if I travel by the Tube and trains within the London and paying by contactless card, does the daily cap apply ?

Yes, travelling by trains within London is included in a daily cap fare, at some circumstances.

According to the tfl.gov.uk fares, the caps for Tube, DLR, Elizabeth line, London Overground and most National Rail trains within London zones are the same.

But there are some exemptions. So it depends on where do you travel by train in London.