Not an Official MDAC app!
There isn’t an app for MDAC. Go to the official website!
Response from developer
You are correct. This is an unofficial helper app as mentioned in the app description. It opens the official website and automates the form filling for large groups or frequent travelers. We enable you to scan your passport and boarding passes with your camera to import travel information and even search for your accommodation by name to autofill the address. The first 2 arrival cards are free and we charge a modest fee for more above that for the development and maintenance of this app. Cheers.