Hi,
not Britain, but works there as well
app Notams for iPhone at the beginning of the shift - and/or Notams via DFS-AIS (German
https://ais.dfs.de/pilotservice/home.jsp) - you need to register so.
app AirNavigationPro on the iPad mini while flying, also displaying Notams
greetings Udo “FlyingBull”