You have to sit through an advert every puzzle and it is not worth it. They game would have been good if not for that. Some of the adds are 2 or 3 pages long and last up to 20 seconds per page and you can't fast forward. I realise adds = revenue but when your customers are trapped with only a purchase securing add free game play. You need to think of the volume vs potential paying customers staying. I do pay for some games but this one hadn't done enough to convince me. Level 34 and 62 adds seen