Some Wordpress plugins are often updated, which is good think. Plugins that are updated are 100% compatible with last Wordpress version and they also are the most secure possible. A plugin that has not been updated for a long time might not work with last Wordpress version and might create a security breach for you website.
DevMatic plugin provides a live preview of the page you are working with onto your device without losing the touch and feel of a mobile phone
Registers wellcut.tv oEmbed provider with WordPress and adds it to the whitelist
Create metabox with media uploader. It allows to upload and sort images in any post_type.
Display content by popup and will be display after number time that you set for this content.