It's Good For Teens
To be honest, Episode isn't that bad for teenagers. I wouldn't suggest it to younger kids. It contains stuff like sex and drugs, sometimes violence, but it gives you a warning before you play the story.
In all honesty, some kids learn about sex and stuff like that when there young, because their school offers Health class. Episode may depict this is a bad way, but sometimes we learn lessons from the story. You may be mad at the fact that there is swearing in them, but like I said, it gives you a warning before you proceed, so don't blame Episode for that.
The other thing about the ads and purchases, it tells you before you download it, "contains ads", "in app purchases", so it's kind of your fault if you have to sit through ads, and don't want to pay for tickets and diamonds.
I hope I convinced you guys Episode isn't as bad at it seems. If your child is mature and/or of age, let them play. You can monitor what they're doing.