What are some alternatives?
When comparing Lianja App Builder and OpenXava, you can also consider the following products
Microsoft PowerApps - Microsoft PowerApps provides tools to create, customize, share and run apps.
CUBA.platform - A Full Stack Enterprise Java Framework with lots of out of the box functionality and amazing...
Open As App - Automatically create a business app from a spreadsheet, no coding.
jHipster - JHipster is a Yeoman generator, used to create a Spring Boot + Angular project.
AppGini - AppGini is a program that helps you develop web database applications instantly.