ISWhatsApp Plus is one of those MODs which, like others, offers all kinds of themes for customizing the interface, functions which help control who can see connection status and who can't or whether messages with linked files can be sent. These often offer a range of features, primarily aimed at customizing the interface and having greater control over user privacy vis-a-vis their contacts (not vis-a-vis WhatsApp, who control your communications).
Due to the fact that the developers of WhatsApp don't rollout changes to the application that frequently, there are quite a few people who have set about developing their own versions of the application, known as MODS.
