I am a bit worried about above game. It is 3D and this might mean that they may have coded from scratch. But it looks identical to OTTD. Have they stolen code?
Also the terrain reminds me of a very early attempt to create a TTD clone by a French guy (Cannot be 100% sure as the screenshot doesn't help much).

Ot of curiosity I got 2 downloads to check what files are included:
transportempire.app
transportempire
but in another package:
transportgeneral.app
transportgeneral
I do not own any iOS device so these didn't come from the official store. And as I know nothing about iOS apps I dunno if these are official names of the executables or by the one who packed them. But if they are official it means they have even stolen the name of another game: transport empire. I also tried to view the pngs but I failed.
pngcrush -fix gives:
Code:
This is an Xcode CGBI file, not a PNG file.
Removing the CgBI chunk.
Recompressing TG_1024.png
Total length of data found in IDAT chunks = 1683497
Skipping CgBI chunk.
unknown chunk handling done.
While reading TG_1024.png:
pngcrush caught libpng error:
unknown compression method