offer an EPOS app linked to the site along with inventory management system.
For the Wix Stores? There is an app for that, Wix App in App Store and Google Play and if you have a store it will give you the oppertunity to admin your store in the app. Or did you mean a real POS app that you can have in your store to sell over counter in the same system?
Yeah I meant a real pos app for selling at a counter linked to the stock levels of the website! Is there any app to join up Wix, ebay and amazon?