Business Application
For a business application, reliability and validation are very important. Hardly anyone will work with people with an unreliable application. This is where full-cycle testing and other types of testing can help. I recommend that you read it – https://testfort.com/blog/static-vs-dynamic-testing-definitions-differences-and-business-considerations.
Of course, you can hire professionals. It will be a wise decision if you have enough money and want to do everything fast. In case you are on a budget, you can do this work by yourself. Modern web design tools allow creating professionally looked websites and apps without special skills and knowledge. I can suggest checking website builders for small businesses out here https://www.webbuildersguide.com/best-website-builder/small-business/. They are easy-to-use, and I’m sure you’ll find a proper one there.
I want to recommend the company https://lampalampa.net/en/ If you are looking for application development, chat on the site or something like that – this is what you need! I think you will like it.