Because her Tappy app got like 100+ downloads on Google Play Store, and seems like no one use it at all (I tried it and there was like 1 inactive chat room for the whole Ho Chi Minh city area).
If someone pay 7 figure for an app no one use, the whole app developer community are all millionaires by now.
So from what I see , what it does is help the user make games from themes.
I signed up for access, still waiting for confirmation
Looks like a pretty cool concept ... a lot of users like to play mobile games while waiting for their friends or travelling ... I mean, its not on the level of Starcraft or Diablo , but its a pretty neat concept ...
7 figure sum acquisition by a large company like Google, Apple or Microsoft doesn't seem that surprising to me ...