Tweetster is a Twitter clone social networking app that supports Android Studio, Firebase, Admob & Agora. User can Tweet & Retweet video, image & text with #Hashtag & @Mention, can like, share, comment.
Demo: https://codecanyon.net/item/tweetster-twitter-clone-social-network-app-follow-chat-tweet-live-android-studio-firebase-admob/30573566
Myfriend is a social networking app that supports Android Studio, Firebase & Admob.
Demo: https://codecanyon.net/item/myfriend-friends-posts-groups-chat-follow-social-networking-app-android-studio-firebase-admob/27901283
Follow My Blog Post plugin allows your visitors to follow changes on your site for particular post, page, category, tags, authors etc.
Demo: https://codecanyon.net/item/follow-my-blog-post-wordpress-woocommerce-plugin/6107586
With the Schedule Emails Extension for the Follow My Blog Post Plugin you can schedule your emails hourly, daily, twice daily or weekly.
Demo: https://codecanyon.net/item/schedule-emails-follow-my-blog-post-addon/7748623