The 30th anniversary remake of Beagle Bros’ Apple II arcade/puzzle game, I. O. Silver, has been released for iOS, and it’s free!
https://itunes.apple.com/us/app/i.-o.-silver/id597967125?mt=8
It was created with Corona SDK, of course, and includes (as IAP) a retro mode using the original 1984 graphics.
Like the original version, the higher levels of this puzzler are freaking hard!