Nur Hasan

WPBookmark is a wordpress plugin that allows users to bookmark posts/pages. 
you can selectively disable bookmarking feature on certain pages/posts.
Major new features in wpbookmark include:
<ul>
<li>user can maintain his own custom list of bookmarked posts or pages.</li>
<li>site owner can explicitly mention which pages/posts user can add to his/her bookmark list.</li>
</ul>
<h4>Pro Version</h4>
Pro Version includes some extra features and allows customization. Features include: 
1. Bookmark button position can be adjusted. 
2. Button color can be adjusted. 
3. Admin can monitor which pages/posts were bookmarked the most from admin dashboard. 
4. Admin can easily notify group of users who liked/bookmarked a post/page through email. 
5. Emailing can be queued to be delivered on a later time.
<ul>
<li>Go to: http://www.binnash.com/wpbookmark-pro/ to get the pro version</li>
</ul>

WPBookmark

WPBookmark is a wordpress plugin that allows users to bookmark posts/pages. you can selectively disable bookmarking feature on certain pages/posts.

wordcubiq

Official Add To Homescreen is a WordPress wrapper for the <a href="http://addtohome.cubiq.org" rel="nofollow ugc">Add To Homescreen</a> javascript plugin. This WordPress plugin guides you through the rather complicated javascript widget configuration.
This is the only WordPress plugin developed by the same author of the javascript widget (hence “official”). If you wish to be always up to date and receive the latest bug fixes, this plugin is probably your best bet.
The plugin opens a message inviting the mobile user to add the application to the home screen. This is currently supported on iOS and Mobile Chrome. While other devices have the ability to bookmark any website to the home screen, only iOS and Mobile Chrome have a straightforward way to do it. Windows Phone support is planned for a future release.
To enhance performance and reduce complexity I’m supporting the latest two OS version for each device only.
<h4>Important! Please read</h4>
Add To Homescreen development started when Apple introduced the <code>apple-mobile-web-app-capable</code> meta tag and <code>standalone</code> mode with it. It was a great news for web developers who had the opportunity to release full screen web applications (and not just websites). The script evolved over time and extended to a more general purpose use case.
It is important to note that there’s no native event we could hook to to know when a user actually added the page to the homescreen. That’s also the reason why this script has become so complicated despite the apparent simple task it has to accomplish.
Unless you explicitly developed your application to be <code>mobile-web-app-capable</code>, this script can’t do miracles and all the alternative solutions have to be considered hacks.
The Basic configuration gives you four presets, the only 100% fail-safe solution is to select the Anonymous option. This disables user tracking but it doesn’t interfere with other plugins you may have.
Considering the complexity of the script, before filing a negative feedback, please drop a support request or a bug report. It’s the only way for me to enhance this software. Thanks!
<h3>License</h3>
This WordPress plugin is released under the GPL license. You can use it free of charge for personal and commercial use, but further modifications and derivatives have to be released under the same GPL license.
The Add To Homescreen javascript component is released under <a href="http://cubiq.org/license" rel="nofollow ugc">MIT license</a>, which basically means you can do whatever you want with it.

Official Add to Homescreen

Official Add To Homescreen plugin displays a callout to mobile users inviting them to add the website to the home screen.

WPBookmark vs Official Add to Homescreen