jondor

<p>This plugin implements an widget which can show a different, page controled, rss feed. What I wanted was the last x plugin reviews on the page<br />
with the plugin info.<br />
For this I added an extra field to every page in which an plugin related id can be stored. This id then will be used by the widget to<br />
replace the @ID@ marker in the rss feed.</p>
<h4>example</h4>
<ul>
<li>page rss id: gps-map-widget</li>
<li>widget rss feed: https://wordpress.org/support/rss/view/plugin-reviews/@ID@</li>
<li>result: the last posts in the feed https://wordpress.org/support/rss/view/plugin-reviews/gps-map-widget</li>
</ul>
<p>When the page rss id is empty, there’s also a default title and rss feed  to use.</p>
<h4>alternative use</h4>
<p>The defaults are for use with the plugins. But.. You can also change the rss feed in the widget settings to only @ID@ and add a<br />
complete feed url to every page resulting in a complete different feed on every page.</p>
<p>I use this widget together WooSidebars (https://wordpress.org/plugins/woosidebars/) so I can easy controle where the widget ends up..</p>


rss-per-page

This plugin implements an widget which can show a different, page controled, rss feed.

Marinus Klasen

<p>Different widget content on multiple pages? Exactly.</p>
<p>This plugin adds WYSIWYG editors on page/post level that can be filled with content.<br />
Add the widget to your sidebar and start editing on page level!</p>


mklasen's Dynamic Widget

Add per-page/post configurable WYSIWYG editors as a widget to your sidebar.

rss-per-page vs mklasen's Dynamic Widget