SAInboxViewController

Requires MisterFusion for AutoLayout, adding an extra library that complicates setup and increases project dependencies, as noted in the Requirements section.

Forces developers to extend SAInboxViewController and SAInboxDetailViewController, limiting flexibility for custom view structures and requiring adherence to specific delegate method calls.

Officially supports only Swift 3 and 3.1, which may lead to compatibility issues or require manual updates for projects using newer Swift versions like Swift 5 or later.

Admits missing features such as changing StatusBar color with scrolling, indicated by the unchecked item in the features list, which could limit polish in certain use cases.