It'd be real nice to have a MHQ app. Unfortunatley, I don't think that's gonna happen. Here's a solution. We can just make a shortcut on our homescreens which should funcion identically.
Android
Open Chrome, and navigate to metroidhq.com. Make sure you're on the root page, and not a profile or topic.
Tap on the three dots in the upper right hand corner. In the drop down menu, select "Add To Homescreen"
Name it whatever you want, and tap "Add".
And presto! MHQ app (Sort of)! It's basically the web browser, but no tabs and you can't go anywhere else. Really only if you want to have a quick access from your home launcher.
Here's what it looks like in app:
You could probably follow similar steps from Safari in iOS. If anyone with a iPhone would like to post how to do it there, I'll update the post to reflect it.