Verizon allows its users to read recently received text messages online, and Android or iOS smartphone owners can install third party apps that sync their incoming text messages to a cloud server. Microsoft does not allow Windows Phone developers to access incoming text messages.
Popular apps for reading incoming text messages online include MightyText and MySMS. The user must install these apps on the mobile phone and then activate them by receiving an incoming text message and entering the code contained in that text message. This means the user must have physical access to the phone in question to set up the service.