Is there any good LMS framework that can be easily integrated to develop educational apps. It should have scoring, questionnaire, gamification , certificate generation etc. Any framework as easy as few lines of code and good payment structure would be good idea.

Is there any good framework that can be used in educational app as Learning Management System (LMS). Should be full fledge for creating courseware for E Learning App. Should be compatible with all Apple Platforms. Any help or link will be greatly appreciated. As I didn't found anything that mentions designed for Xcode. All LMS belong to Web based apps.

Is there any possibility to update constraints for elements inside CollectionViewCell with button tap? And where to put the code inside CellForItem or Inside CollectionViewCell Class File?