Convenient map locator – Hong Kong City Maps - Discover HKG with MTR,Guides Review

Worked well enough for me. This app basically points you to freely available tour maps (in PDF format) online and allows you to download and view them on your device. A paid upgrade removes the ads but they aren't too obtrusive. Many other cities besides Hong Kong are also available. The app did crash on me when downloading and trying to process one large map. One nice feature: being able to see a preview (i.e., a non-zoomable version) of maps as they are being downloaded.
Review by cctjpogo on Hong Kong City Maps - Discover HKG with MTR,Guides.