Siberian CMS

Siberian CMS is the leading open-source CMS for building mobile applications. It has been launched in March 2014. It allows everyone, from the non tech-savvy user to the experienced developer, to create mobile applications with ease.
Like in the website world where CMS are the preferred systems for creating a website, a CMS for mobile applications has great advantages compared to online platforms as the user:

owns the software, and so he is independent from the provider of the system
can customize the software to his or his client’s needs
can create his own features, and so make the software evolve
Especially, it is true for agencies and developers who create apps for their clients and cannot be tied to a provider and, for example, loose their clients’ apps if the provider shuts down the service, or be stuck with the features provided with no option to develop their own ones.