IPA version is different for different regions.Check it from itunes store (Only for Apple Users)
Since APK cracking is always not perfect, sometimes it will not work on your Android device.If you did the steps correctly it still doesn’t work there is no any method to make it work other than a miracle.
Android Version rar file also have the map downloader software that let you install many more maps to Sygic
Android version contains HUD function already.Turn your phone to landscape mode and press back button once,HUD button will appear in the right bottom of screen.
Installation instructions are given in the rar file
Apple users have to choose your country after clicking the download link.Install using a software like iFunbox or iTools
Apple version doesn’t have HUD pre-enabled.you will only get GPS Navigation