A custom app builder is an online tool that will allow you to make a mobile application for your business. Create the app exactly as you imagined without any code. Just drag and drop what you need onto the stage.
Every attribute of the elements can be modified to fit your brand. Be sure to stay consistent with the colors and layouts to avoid confusing the users. Include the features you need from the library of available options. Test them to ensure that they work as you intended.
These app builders have a high degree of flexibility, although not quite at a level that building from scratch provides. Work with what you have and see how far these can take you. Some of the companies that offer these can also build the app for you at a fraction of the cost of traditional developers.