I have done a similar project and will share an APK with you if you request.
1. You can post your own Shops without depending on Google Places
2. You don't need to be outside to use GPS unlike WAM, your AR app can be used inside the mall and outside (both).
3. You can manage all the shops like delete, update etc.
4. You can also allow owners of the shop to update their shops items or details or upload their own shop.
5. Users can share their shop on Facebook, Twitter, Whatsapp and all social networks using your AR app.
6. Customers can track shops by map or AR and can select shops based on interest like Pants, Lingerie, restaurants, bags, shoes and lots more.
Let's get started, thanks.
Kind regards,
Jun