There are no video guides on YouTube or even guides on here how to transfer your save data from iOS to emulator, so I figured it out myself - here's how I managed to do it.
#1: Launch Destiny Rising on your iPhone, and locate the 'person' icon.
#2: In the settings, make sure the top menu is selected, then go to Bind Account. Pair your account to Google - you will need to use your email for this.
#3: Using MumuPlayer or Bluestacks, download Destiny Rising onto your emulator, then select your Google account as anything from Apple and Game Center won't show up.
And you're done!