JayJay
Publishing the source code does not make something open source. A big part of the value of open source is that other people can freely take the code and start a new project based upon it. The licensing for futo apps puts significant restrictions on any derivative project.
It is a regular occurrence where the owner of a popular open source software project makes unwanted changes or kills a project and then people set up a new project that itself becomes very popular.. Often the new project includes software developers who contributed code to the original project. Sometimes even the lead developers.
The license used by futo apps makes this very unlikely to ever happen.