Mobile stock trading app Robinhood turned heads in the cryptocurrency space months ago when it launched a digital currency trading service through its mobile platform.

With the announcement, made late last week and reported on by CoinDesk, Robinhood now offers four digital currencies through its no-fee trading platform, Robinhood Crypto.

The company made the decision to add litecoin and bitcoin cash following strong demand from customers for alternative options beyond ethereum and bitcoin.

The report of the enhanced Robinhood Crypto platform follows just weeks after a report in May that indicated Robinhood raised $363 million in a Series D funding round.

At the time, the company stated that this funding would allow it to offer a broader selection of cryptocurrency trading pairs in the U.S. At that time, Robinhood Crypto was available in 10 states.

Robinhood initially launched its cryptocurrency trading branch in February of this year with bitcoin and ethereum trading pairs across five states.

Robinhood Crypto aims to offer service to the entire U.S. by the end of 2018, according to Robinhood co-founder and co-CEO Baiju Bhatt.