I love this simple but addictive game, so I bought the remove ads option. Still a lot of 30 second apps though!
Contacted the developers, they say these ads are voluntarily so these are not removed.
However, I do not agree. To extend a game after losing, you have to watch an advertising. To get extras in the game (earned gifts) you have to watch an ad, etc. etc. Nothing voluntarily about that, there is no choice except don’t watch, which means no gift, no continuation etc. It’s really annoting!
In other words: I feel cheated to buy the remove add option, and would recomend you not to buy it: it barely adds any value at all.