If there were an ad every time I opened the game, I would understand. If there were an ad after every 15 minutes spent on the game, I would understand. But these ads last longer than my turns do and they happen after every turn! 70 percent of my time on the app is spent on ads. Not only that, but there is no ad free version, instead you purchase a renewable subscription. Love the game, hate the business, I'm uninstalling.