Comment WAT (Score 1) 220
i wold guess that those figures are way WAY off.
1. 50M downloads or users?
2. 4 minutes day/ every day /the whole year? really?, i beated every level in about 5 hours total,(all the android versions, and im bad at it) TFA assumes a average use of 24h.16m per user per year. that seems like way over reality for me.
my guess would be around 1/4 or 1/5th of the given figure, still a lot tough.