Tà-Rà, from Yoruba “Buy-Sell” is a mobile application developed by Kwetu Best Services Technologies, Kwetu Best SARL.Tà-Rà allows the public who own physical stores to have an online space where they can create these stores to exhibit their products (Products, quality, price, delivery method, etc.), and offer themselves the possibility of selling whatever place or time.It offers store owners (sellers) and visitors to the store space (potential buyers) the opportunity to interact using a Chat space. This functionality allows textual exchanges which can broaden users circles of knowledge, bargain for products and services, etc.For providers of various services (IT specialist, Designer, Mason, Lawyer, Architect, Lyricist, Composer, Master of Ceremonies, etc.), Tà-Rà offers the possibility of having a profile or exposing their skills, their achievements and offering their services to potential customers, while also offering them and their visitors a space for discussion in the form of Chat.To increase the visibility of its users products and services, Tà-Rà also offers a space in the form of a panel for advertising users products and services as well as their announcements.Tà-Rà protects the user and their assets because no money transactions are carried out in the application. The user places their order and pays using a third-party application or in cash at the counter. If he used an electronic money platform, he only has to enter the transaction number, which can be validated by the seller.Tàra also offers flexibility to users regarding access to their order, they can either collect it at the counter or request home delivery.