mElimu
provides a
comprehensive
solution
including

mElimu is an e-learning platform that provides learners offline access to training content anywhere and at any time. mElimu continues to develop and enhance its mobile app to increase learners experience and make the classroom easily accessible on mobile devices.

Open source LMS comes with some critical drawbacks, often swept under the rug - hosting is still done on-site / in the cloud, which means you spend a lot on storage.