A Tokyo startup is on a mission to lower the barriers to investing, especially for young people and especially for those seeking to invest in the United States.

“There are still very big hurdles when it comes to investing,” said Brian Yun, co-founder and CEO of Woodstock, which provides a smartphone trading app.

Citing fees as a primary barrier, Woodstock recently introduced a zero-fee, around-the-clock U.S. equity trading service.