A number of apps are being reduced to 25p for each of the next 5 days (inc today). Google is celebrating 25 billion downloads and has a [different] selection each day at low cost.
I've just installed OfficeSuite, some might want Google Tasks, and there are a number of games and a drawing app.
Of course, in USA a number of films are being reduced, along with music, and to 25c (closer to 16p I think)... But at least this time we are able to get a discount on some items. (25c in Ireland, so that's about 19p)