Great that you get in touch! Kolibri is made for your project, to made use of for free! It's open source and is made to improve access to education and information.
Kolibri is under development and is expected to be available during mid-2017.
Please writer firstname.lastname@example.org if you have anything specific in mind that needs to be build. Kolibri is made to be a flexible component in a larger technological stack / deployment. We feel quite confident in saying that it fits many sizes, but it might need further explanation