Build me a web application along with IOS and Android App

This is an application that helps common people to solve their daily life service issue with verified vendors, in this application customers can choose the service vendors those who are appropriate with their requirement .So the application helps the vendor to reach their respective customer directly. Type of Use 1. Admin 2. Customer 3. Vendor Admin 1. Admin has the privilege to activate/deactivate vendor accounts 2. Admin has the privilege to activate/deactivate Customer accounts 3. Create category of service. Customer 1. Customer can login to application as Guest/ Signing Up Via Facebook / Via Google Account / Entering basic details*. 2. After Login Customer can search the required category of service based on location. 3. Customer can see various vendor respective to their search 4. Customer can contact vendor via call / Whatsapp / Email . 5. Customer can provide feedback and review the vendor Vendor 1. Vendor can login to application after Signing Up Via Facebook / Via Google Account / Entering basic details* after onetime payment . 2. Vendor can add the details of service that they are providing with respect to location. 3. Vendor will receive customer enquiry via mail/Whatsapp / vendor account provided by the application, all enquiry details will be stores in the vendor account with respective to date. 4. Vendor can provide feedback and review the customer