ヘキサコネクト: 2048 パズル

Ads after every stage clear. Ads even if you fail a stage. I highly recommend purchasing the ad removal option early. It said "2048" so I thought it was that... but while the gameplay feels similar, there were a lot of ads (lol). It has more game variations than that one. It's structured with 3 stages: normal highest stack (number), daily, and event. You can also collect rewards, so you'll rarely need to spend coins.