Microsoft SQL express for production use?

Question

My team currently designing an accounting system(First module) for a small business. When I was checking the price of the Microsoft SQL I was stunt because it was so expensive and the business will surely not carry that price. Then I remember that there is a free version of Microsoft SQL. I Know that there are limitations but Is it advisable to use the Microsoft SQL express?

Answer 1

You can use MS SQL Server Express for commercial use.

there are many companies use the express free version as the main database for their products

You can also have a look at this link might help as well

Can I use free SQLServer Express in commercial app