We are experienced hybrid app builder that we have been building apps integrate with social media accounts (facebook, twitters etc) login, equipped with thumbnail photos of products, showing products detail in categories, payment gateway, able for backend to add/edit/upload files etc for our clients, so we are confident that our works can fulfill your requirements, moreover, would you please provide more information for us, so we can study it carefully to see what we need to do in order to fulfill your requirements, thanks!