This is plain untrue and misinformed, there's an entire category of companies where the whole business model is to pump money into ads to push their own apps an

This is plain untrue and misinformed, there's an entire category of companies where the whole business model is to pump money into ads to push their own apps and games. They carefully make sure that cost to acquire one paying user is lower than the amount of money the paying user brings. They usually achieve this by aggressive conversion tactics in the app and overly optimized ads with hundreds of variants. There's a whole industry built around this.