On iOS, the game is free and allows you to play the first chapter, while each additional chapter can be purchased (though purchases are not working as of press time). On Android, the entire game must be purchased before downloading.
Ace Attorney Investigations: Miles Edgeworth was first released for DS in Japan in May 2009, followed by North America and Europe in February 2010. It is set between the events of Phoenix Wright: Ace Attorney − Trials and Tribulations and Apollo Justice: Ace Attorney.
Watch the launch trailer for the smartphone version below.