Bad

Disconnects every ~30 seconds. Not very useful. Clunky UI / UX; does not follow established paradigms of iOS applications. Could benefit from taking a cue or two from good apps like Robinhood, ThinkOrSwim, etc.

And how long has this company been around again? Cmon guys...

Robert Ebert of iPhone Apps about IBKR Mobile - Invest Worldwide, v8.19