Paid for no ads because the intent is to upgrade without watching ads. Unfortunately, it's misleading as that only stops forced ads. Broken mechanics and crashes during ads. Most upgrades for each district stop at level 5 regardless of amount of money you can carry (I used unlimited and 2x with over 500k but couldn't upgrade unless I watched an ad.) 6 levels: level 4 takes 250,000 to unlock, level 5 takes 450,000 to unlock. Level 6 takes 100 million to unlock. Wasteful game and 💰