Scott Taylor

Most ratings plugins contain too much code: inline JavaScript, messy markup, weird CSS. Rate is simple, hardly intrusive, and completely overridable.
A Post/Page/Custom Post Type’s rating is the average of all comment ratings. A user can leave a rating when commenting, and change that rating inline after leaving a comment (if logged-in or Cookie’d).
Don’t be afraid to play around and extend the code: drop a <code>rate.css</code> file in your theme directory and mine won’t even load (by default, Rate stars are transparent with a white border, so you can use <code>background-color</code> to set your stars’ colors)!
<pre><code><?php 
// in this version, you need to insert these functions into your theme for ratings to appear
// you don't have to use the_rating(), the comment_rating() will work by itself, but the_rating() will not

// for a Post, Page, or Custom Post Type (average of all comment ratings)
the_rating();

// for a comment
the_comment_rating();
?>
</code></pre>
Read More: http://scottctaylor.wordpress.com/2010/11/30/new-plugin-rate/

Rate

Most ratings plugins contain too much code: inline JavaScript, messy markup, weird CSS. Rate is simple, hardly intrusive, and completely overridable.

splittypayplugins

Step pay allows customers to pay their orders by installments, with 3 payments in 3 months. 
Customers will be redirected to the Splittypay platform to complete the payment: from the platform customers can: 
* Add their credit cards or bank accounts to pay 
* Pay by installments 
* Monitor the payment in real time
Merchants need to register to the Splittypay service to access the Step functionality as the plugin requires an API key to work properly. 
A merchant, to get an API key, needs to fulfill four simple steps: 
* Connect (or create from scratch) their Stripe account 
* Fill some basic information about the business 
* Upload a logo 
* Customize the cart duration on the Splittypay platform
The Step pay plugin can work both in sandbox and live mode. Merchants can switch between the environments from the settings panel 
(different API keys are required for the sandbox and live environments).

Step pay

This plugin allows customers to pay their orders by installments, with 3 payments in 3 months.

Rate vs Step pay