Who can help solve the problem with software development in the sales area?

Now a lot of different companies offer their services, and there are many individuals who will fulfill your order for a small amount of money. But I strongly do not recommend using the services of such dubious persons. After all, you can pay money and get a low-quality product. I found on the Internet a link to a reputable company https://keenethics.com/blog/flutter-vs-react-native , whose specialists create websites, write programs and applications. On their website there are samples of work, portfolios. So the reviews about the work of the company are not bad. You can contact and find out the details. Good luck!!!