The app allows users to invest or trade bitcoin, ethereum, bitcoin cash, ethereum classic and litecoin, with more tokens coming in the future, according to Circle's website. While XRP appeared in a screenshot in the initial announcement, the token was not listed on the app's website as of press time.
Users can connect their bank accounts to facilitate instant deposits, while the platform also supplies market data.
Notably, the app offers commission-free trading. According to its website, Circle Invest makes its money by taking a 1.5-2 percent difference between a coin's buy and sell prices.
For customer protection, users are offered offline storage, two-step verification and "privacy protection," according to an email.
The app's launch comes weeks after Circle announced it had acquired cryptocurrency exchange Poloniex, which will serve as the foundation for a future crypto supermarket of sorts where all manner of digital tokens would be traded.