For my own business (The Family Code, LLC), I have developed a dual iOS app system that utilizes the same database/backend with proper role management and access/restrictions. One app acts as the client portal where they can keep track of the progress of the desired development work that they have contracted us to do as well as send and receive messages and documents. The other app acts as our Administrative/ Team member portal where our members can see projects that they have been assigned, communicate with clients and other team members, clock in and out to track working hours, as well as accept or decline projects that were submitted on our website using web hooks