There are tons of good ports out there! For some reason they seem to be especially prevalent on iOS — if it wasn't for them, I'd have never played Twilight Struggle or Le Havre or Suburbia or so many more.... I enjoyed Star Realms enough that I picked up the boxed game, which I haven't done for any of my other digital board games.
BGG even has an entire blog carrying news of recent and upcoming releases of digital board games. Which is, bafflingly, reporting that Rhino Hero is being ported to iOS... o_O
(Edit: Ok, the Rhino Hero game is not a port, it's just an iOS game with the same branding and vaguely similar physics-based tower-building gameplay. Not sure how I feel about that.)