When you make an app or service, you may find your self wanting to strengthen the user experience by connecting with friends in some fashion. Applications like Facebook and Twitter allow you to search your contact book for friends that are already using their service. If your friend isn’t using the service, you have the option to invite them.
Using native Android and iOS code could make this process very painful for the developer as it is lengthy and difficult. Lucky for us, we are using Apache Cordova with Ionic Framework and there is a plugin for us that takes all the pain away.