Dark Stories is openly inspired by the classic card game Black Stories, where one player presents the outcome of a situation while the other players have to figure out how things led to that conclusion.
The app's design is simple: onscreen you've got a list of all the available stories. When you select one, you can read the situation you have to present to the other players. If you press the solution button, you see the development of the plot, though of course you mustn't reveal this to the rest of the players.
The usual way of playing Dark Stores is that one player selects a story and reads it to the rest of the players. When the players solve the story, one of them reads the next one. This continues as long as you want.
Dark Stories is a good version of the classic Black Stories, with an elegant interface and a ton of gripping stories for you to play out. In the settings, you can also change the language of the stories.