Twitter developers say that the short form of thought presentation is its exclusive right. Taking that into account, the microblogging service changed the existing concept. Before that, only the sender’s followers could receive private messages. Now sending to all users is available. In other words, the system works on the same principle as WhatsApp with microbloggers sending messages to each other and viewing the message history on their pages. Twitter management also has plans afoot to ensure a smooth synchronization scheme of Direct Messages on mobile apps and on the website. “We're also making an update to the Twitter iPhone and Android apps that will allow you to access your entire DM history,” said the company in a Twitter Support tweet. Moreover, Twitter said the new system will be rolled out “over the next few weeks”. Currently, experts and users are more concerned whether Twitter’s DM would have a 140 character limit, which is the service’s zing. As most users think, the limit is unjustified in the chart format. “There's a real opportunity for us, when we think about our private messaging, to strengthen the core of our Twitter product by making it easier for users to move more fluidly between the public conversation that happens everywhere on Twitter, and the private conversation between you and a friend or you and a few friends,” said Twitter chief executive Dick Costolo. For context, Twitter held its IPO on November 7, 2013. Then, its shares skyrocketed 81% in their first few minutes of trading on the Nasdaq stock market. However, as we see, Twitter’s securities show record volatility and the situation is unlikely to change before a successful business model is created.