Yes, WordPress provides many plugins that helps owners to operate and manage a website. You can find both free and paid plugins with providing different features. Every now and then these plugins are updated with software, features, user interface to improve the experience of the users.
At present you can find 59,617 WordPress plugins for free with some of them including paid versions.
If you are looking for a free user engagement plugin for your website, you should definetly check the free Truepush plugin to send engaging push notifications to your users. You can send unlimited push notifications to unlimited subscribers at $0 cost with all advanced features. It includes audience segmentation, triggers, RSS to push, notification schedule, opt-in and CTA styles and more.