Title says it all really; its the same 'huge, but shallow' sandbox concept that E:D gives you, but in 2D & for mobile.
Many of the game's systems unapologetically steal straight from E:D, at times to the point of plagiarism.
Though it's hard to criticise when this familiarity helps with learning the game.
Mechanics-wise it has everything you'd expect; exploration, bounty hunting, piracy, couriering, trading, planetary landings, mining, some form of a narrative, achievements.
It makes heavy use of autopilot, which is a good fit for the constrained controls of mobile gaming, and allows it to be played without absolute concentration.
Not a bad little time sink for when you're traveling; I hope the dev continues to add to it.