Now at 81, she's just launched her first smartphone app. She says she felt compelled to do something after noticing a shortage of fun apps aimed at people her age.
"We easily lose games when playing against young people, since our finger movements can't match their speed. I wanted to create a fun app to get elderly people interested in smartphones.It took about half a year to develop" Wakamiya said.
Her app, Hinadan, is an iOS game based on Japan's traditional festival
Hinamatsuri, or Doll's Day, which is celebrated in early March.