Giustino Borzacchiello

This plugin will show stats about your posts after your content.
Currently it shows:
<ul>
<li>Word count</li>
<li>Characters count</li>
<li>Reading time</li>
<li>Speaking time</li>
</ul>

Postats

This plugin gives some statistics about your posts (word count, etc.)

Hao Nguyen

Init Reading Position enhances the reading experience by remembering how far a visitor has read on a post. 
When they return, it automatically scrolls back to where they left off.
Perfect for:
<ul>
<li>Long-form articles</li>
<li>Tutorials or guides</li>
<li>Web novels or manga</li>
<li>Any content where readers often stop and come back later</li>
</ul>
This plugin is part of the <a href="https://en.inithtml.com/init-plugin-suite-minimalist-powerful-and-free-wordpress-plugins/" rel="nofollow ugc">Init Plugin Suite</a> — a collection of minimalist, fast, and developer-focused tools for WordPress.
GitHub repository: <a href="https://github.com/brokensmile2103/init-reading-position" rel="nofollow ugc">https://github.com/brokensmile2103/init-reading-position</a>
Features
<ul>
<li>Saves scroll position using localStorage (guests) or user_meta (logged-in users)</li>
<li>Smart device-based sync: remembers position separately for PC, Mobile, and Tablet</li>
<li>Automatically scrolls back on page load</li>
<li>Lightweight, no jQuery, no bloat</li>
<li>Easy to extend via filters</li>
<li>Optional settings page to control which post types are enabled</li>
</ul>
<h3>License</h3>
This plugin is licensed under the GPLv2 or later. 
You are free to use, modify, and distribute it under the same license.

Init Reading Position – Remember, Return, Continue

Remembers reading position and auto-scrolls when returning. Works for guests (localStorage) and logged-in users (user meta, per device).

Postats vs Init Reading Position – Remember, Return, Continue