Too many ads. It is ridiculous.
Thank you for your feedback! Our advertising revenue allows us to provide ongoing support and development of the game, while keeping the game free for everyone. We try to strike a balance where we’re able to support the app but not cause too much of a disturbance for players, so we’re always evaluating and tweaking frequency and length of ads. Your feedback will be carefully considered as we review this.
For those who wish to not see any ads, there is a paid version of the app ($1.99 USD) that removes video ads from the game. If you prefer, that version is available.