What are some alternatives?
When comparing Lianja App Builder and Open As App, you can also consider the following products
OpenXava - OpenXava is a Web Java Framework for Rapid Development of Enterprise Applications.
Microsoft PowerApps - Microsoft PowerApps provides tools to create, customize, share and run apps.
AppGini - AppGini is a program that helps you develop web database applications instantly.
CUBA.platform - A Full Stack Enterprise Java Framework with lots of out of the box functionality and amazing...
jHipster - JHipster is a Yeoman generator, used to create a Spring Boot + Angular project.