Aby Rafa

Show meta description in your homepage, single post and page. This plugin helps you to attract visitors and boost traffic. Just plug and play. (WordPress Simple SEO – Meta Description).
If you want to know how this plugin works, right click on your page and then select view page source. You will see your meta description between the header tag.
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<li><a href="http://wp.labnul.com/plugin/one-meta-description/" rel="nofollow ugc">Plugin Homepage</a></li>
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One Meta Description

Show meta description in your homepage single post and page. (Wordpress Simple SEO - Meta Description).

ProRankTracker

Pro Rank Tracker® is a cutting edge ranking tracking tool (SERP Tracker) for keep you up to date with all the latest changes on the rankings of your websites and videos.
If you don’t have a PRT account yet, you can sign up on: http://proranktracker.com
Why choose ProRankTracker software ?
<ul>
<li>Next Generation rank tracking technology </li>
<li>Amazing affordability (including a free plan)</li>
<li>Unbeatable Accuracy tracking across a huge array of search engines</li>
<li>Powerful local and mobile rank tracking options</li>
<li>Enterprise-level white-label reporting to clients solutions</li>
<li>Easy access anywhere, anytime from web and mobile apps</li>
</ul>

Pro Rank Tracker

I make that only on very few occasions to give a bad feedback, but this here deserve it - my recommendation, save your time, don't download it - it does not work at all, at least not before you not pay - and there is no chance to find out / test it ...

Pay befroe you try

Using ProRankTracker's Wordpress plugin, you can view your wordpress site's rankings and stats from your PRT account, directly on the admin  …

One Meta Description vs Pro Rank Tracker