Tinheivan is a fast and easy to use e-Commerce mobile application that connects between customers and sellers. It provides a user-friendly interface for sellers to add or update their products and photos with separate captions quickly. They can also set up auto-reply messages to users who make questions about their products or their store. Sellers can manage their sales, update the status of the order by paid date, delivery date, or void the order and also print a receipt. Buyers can browse items they are looking for and create purchase easily. They can also negotiate with sellers and send the delivery location, voice messages, photos, or product URLs.