I offer you an excel workbook that will look and work like an app!!
With VBA programming I have experience in creating multiple app interfaces in Excel, that has beautiful designs and a friendly user interface attending all your needs considering the software limitations. You will not see all the Excel normal interface, will be able to navigate using buttons, menus, hiding and showing them when needed, and all of it with the well known capacity of data management that Excel gives us!
Feel free to ask for a demo!