IDK, mobile games don't tend to have a spending cap. On most PC/console releases the most you can spend on a game is few hundred for the game and all the DLC bought day 1 and usually goes down as time goes on. Mobile games will have one gem bundle or whatever that costs more than the complete package of a PC/console title. So you can easily get whales spending thousands on one game. The financials tell me mobile games are better at extracting money from their audience or a subset rather but that's kind of how they feel to play! Everything is geared towards extracting money.