ITRO WordPress Popup Plugin is a WordPress FREE plugin which allows to display a fully customizable popup in your WP website.
ITRO Popup is a very lightweight WordPress Plugin which allows users to add a fully-customizable and perfectly centered popup. It has a very user-friendly interface, which lets you easily modify all settings needed for a popup, without coding. With “Enable age validation” option, the popup blocks the navigation (for age validation) until the user declare that is above the local country legal age. It is useful for adult content site (tobacco & alcohol selling, violence, bad language, etc…). The leave and the enter button are separately customizable.There’s embedded the WordPress editor to put simply whatever you want in your popup. This plugin is basic-user oriented, no code knowledge is required.