[Recognition rather than recall] (Severity 2): The "store" feature is only on one of the pages. It might be better for the user to have access to it from any page since it seems like it's a feature that can be used a lot.

[Aesthetic and minimalist design] (Severity 1): The buttons on the bottom switch places. It might be helpful to have all the places as buttons as one central bar or a button that pulls up the menu to the different buttons they can push to take them to the specific places.

[Match between system and the real world] (Severity 2): The maps on the map page are a little confusing. Are there supposed to be two maps where one shows your location and the other is a friend's? Or, was the two maps there just to fill in space?

[Recognition rather than recall] (Severity 2): The "sell" button for the store is only available after you press the "buy" button. Maybe move the "sell" button to the main page of the store?

[Match between system and the real world] (Severity 3): The user would expect to see all the items they've found in a central location. Does this app have that?

[Match between system and the real world] (Severity 3): In the "buy" page, you can buy accessories for your avatar. Is there a dedicated page to customize your avatar and will you be able to see your avatar on the map?

[Help users recognize, diagnose, and recover from errors] (Severity 1): There was no place to recover from any errors. One place is if they accidentally sell something. Can the users buy it back?

[Help and documentation] (Severity 2): No help or documentation, and it might be difficult for a first time user to navigate the app.

[Aesthetic and minimalist design] (Severity 3): Will the radar page turn into the AR mining page when you encounter a mining spot? How will the user know? Will there be a push notification? Will the radar screen automatically turn into the AR page and the user will have to cycle through the pages to see if they found something? Will the AR page just show up once they have a mining spot?

• I didn't realize how to get to the AR page until I clicked outside of the the phone to see what was clickable.

[Match between system and the real world] (Severity 2): The map would show your location. Would the map also show people's avatars when they are also using the app and the user is nearby? Will it show the "mining items" nearby like Pokemon Go or is that what the radar is for?

• [Match between system and the real world] (Severity 3): What is the radar's purpose? Is it just the main "home" page that you see when you open the app? Is it like a sonar radar that tells you how relatively close you are to the "mining item"?

Besides those, I think it looks good. I especially like the Webkinz Curio Shop picture for your shop picture and this seems like it could be a fun game! AR is always good and I love the fun and popular references.