Download the latest version of the Application by tapping on the download button. This will take you to the download page. Now go to file manager -> apk's -> click on the apk file. Now after clicking on the file, if it shows that installation of unknown apps are blocked, then tap on settings -> click on allow apps from unknown sources Hit the back button, go to file manager again, and tap on the Instasize apk Tap on install and voila! You are good to go. You have successfully installed the Application.