While the general public may have gotten a glimpse of the worrying and addicting nature of trading apps like Robinhood for the first time this week, gambling experts, financial watchers, and even competing trading apps have long thought about how to address these issues, reports NBC News.

“The problem online daytrader is indistinguishable from the online gambling addict,” said Keith Whyte, executive director of the National Council on Problem Gambling, referring to graphics like the iconic green confetti that appears on a user’s phone when a robinhood trade is executed. “Much of this comes straight from the casino user experience: it encourages immediacy and engagement.”

Robinhood declined to comment directly on the app’s design elements, which critics say includes playful features.

Read the full story on NBCNews.com