Robinhood, which is based in Menlo Park, California, issued a statement in response to the lawsuit on Monday saying it was devastated by Mr Kearns' death and has since made improvements to its options offerings.
The measures include adding more educational materials on options trading and new financial criteria and experience requirements for new customers seeking to trade some options.
"In early December, we also added live voice support for customers with an open options position or recent expiration, and plan to expand to other use cases," the company said.