Ederson Peka

With this plugin, you can create as much “sidebars” (widget areas) as you need, and assign them in a per-page basis. (It’s only useful if your theme supports “sidebars”.)
WARNING: Updating from versions prior to 0.2.5 requires new set up.

Unlimited Page Sidebars

This plugin does exactly what it needs to and always works. It's great.

Does exactly what it needs to!

Assign one specific widget area (sidebar) to each page.

Automattic

WooThemes

Matt Cohen

With WooSidebars, it’s possible to change the widgets that display in a sidebar (widgetized area) according to a context (for example, a specific page, a specific blog post, certain categories or the search results screen). Setting up a custom widget area to display across multiple conditions is as easy as a few clicks.
Looking for a helping hand? <a href="https://woocommerce.com/documentation/plugins/woosidebars/" rel="nofollow ugc">View plugin documentation</a>.
Looking to contribute code to this plugin? <a href="https://github.com/woocommerce/woosidebars/" rel="nofollow ugc">Fork the repository over at GitHub</a>. Please also read the CONTRIBUTING.md file, bundled within this plugin.

WooSidebars

WooSidebars adds functionality to display different widgets in a sidebar, according to a context (for example, a specific page or a category).

Unlimited Page Sidebars vs WooSidebars