Codename One has a free tier that allows you to do pretty much everything and allows you to use it commercially https://help.codenameone.com/en-us/article/is-co

Codename One has a free tier that allows you to do pretty much everything and allows you to use it commercially https://help.codenameone.com/en-us/article/is-codename-one-free-slkwhu/ https://help.codenameone.com/en-us/article/is-codename-one-f... You can grow the build quotas as well to support larger applications. Furthermore, you can use the open source pieces of Codename One for free without the build servers. There is no restriction on that.