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All in One SEO – Powerful SEO Plugin to… vs Slim SEO – A Fast & Automated SEO… (2026)

Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.

All in One SEO – Powerful SEO Plugin to…

All in One SEO – Powerful SEO Plugin to…

4.7(5,075)

3.0M+ active installs

Free

Updated 3 weeks ago
View All in One SEO – Powerful SEO Plugin to…
VS
Slim SEO – A Fast & Automated SEO…

Slim SEO – A Fast & Automated SEO…

4.7(134)

60K+ active installs

Free

Updated 5 days ago
View Slim SEO – A Fast & Automated SEO…

Quick Verdict

As of April 2026, All in One SEO – Powerful SEO Plugin to… has a higher user rating (4.7/5 from 5,075 reviews) and leads in active installations (3.0M+ vs 60K+). Both are free WordPress plugins. All in One SEO – Powerful SEO Plugin to… has accumulated 200M+ total downloads while Slim SEO – A Fast & Automated SEO… has 1.8M+. All in One SEO – Powerful SEO Plugin to… has a higher support resolution rate (100% vs 70%).

Detailed Comparison

Rating
4.7/5All in One SEO – Powerful SEO Plugin to…
Slim SEO – A Fast & Automated SEO…4.7/5
Total Reviews
5,075All in One SEO – Powerful SEO Plugin to…
◄
Slim SEO – A Fast & Automated SEO…134
Active Installs
3.0M+All in One SEO – Powerful SEO Plugin to…
◄
Slim SEO – A Fast & Automated SEO…60K+
Total Downloads
200M+All in One SEO – Powerful SEO Plugin to…
◄
Slim SEO – A Fast & Automated SEO…1.8M+
Support Resolution
100%All in One SEO – Powerful SEO Plugin to…
◄
Slim SEO – A Fast & Automated SEO…70%
Last Updated
3 weeks agoAll in One SEO – Powerful SEO Plugin to…
►
Slim SEO – A Fast & Automated SEO…5 days ago
First Released
2007All in One SEO – Powerful SEO Plugin to…
Slim SEO – A Fast & Automated SEO…2018
Age
19 yearsAll in One SEO – Powerful SEO Plugin to…
Slim SEO – A Fast & Automated SEO…8 years
WP Requires
5.7+All in One SEO – Powerful SEO Plugin to…
Slim SEO – A Fast & Automated SEO…5.9+
PHP Requires
7.2+All in One SEO – Powerful SEO Plugin to…
Slim SEO – A Fast & Automated SEO…7.4+
Business Model
FreeAll in One SEO – Powerful SEO Plugin to…
Slim SEO – A Fast & Automated SEO…Free
Latest Version
4.9.5.1All in One SEO – Powerful SEO Plugin to…
Slim SEO – A Fast & Automated SEO…4.9.4

Rating Breakdown

All in One SEO – Powerful SEO Plugin to…

4.7/5(5,075 reviews)
5
91%
4
3%
3
1%
2
1%
1
5%

Slim SEO – A Fast & Automated SEO…

4.7/5(134 reviews)
5
90%
4
3%
3
1%
2
3%
1
3%

Recent Reviews

All in One SEO – Powerful SEO Plugin to… Reviews

by kristy64

Useful but Limited

All in One SEO did help me with basic SEO work, so tnkz for that. But some parts felt less smooth than I expected, and I still had to fix things on my own. 3 star.

by joeles68

Een prettige SEO plugin om mee te werken

Een zeer prettige SEO plugin om mee te werken. Laat direct zien wat je kunt verbeteren en geeft ook een score. Ook de koppeling met AI voor het genereren van een meta beschrijving is erg prettig. Al m

by marcv73

Une aide appréciable

Je commence juste à l’utiliser mais cette extension est déjà d’une grande aide. Je me demande juste si elle est toujours bien à jour avec les cahiers des charges SEO/GEO. On verra bien au fur et à mes

Slim SEO – A Fast & Automated SEO… Reviews

by cryptoli

Simple and works great!

No issues so far, working as expected! This topic was modified 4 days, 13 hours ago by cryptoli. This topic was modified 4 days, 13 hours ago by cryptoli. This topic was modified 4

by cigiloviccom

Avoid this!

Hey there, apologies but I have to provide a negative feedback. I think this plugin and the possibly the small company behind are not worth paying for at all. I watched some SlimSEO videos and got

by Jlwp

Fantastic plugin

I did a thorough comparison of SEO plugins and Slim SEO came out on top:– Easy to use GIU– Very well documented– No hard upsell windows unlike some other SEO plugins– Extensive range of features– I th

Frequently Asked Questions

Is All in One SEO – Powerful SEO Plugin to… or Slim SEO – A Fast & Automated SEO… more popular?
All in One SEO – Powerful SEO Plugin to… has 3.0M+ active installations while Slim SEO – A Fast & Automated SEO… has 60K+. All in One SEO – Powerful SEO Plugin to… is the more widely-used plugin as of April 2026.
Which has better ratings — All in One SEO – Powerful SEO Plugin to… or Slim SEO – A Fast & Automated SEO…?
All in One SEO – Powerful SEO Plugin to… has a 4.7/5 rating from 5,075 reviews, while Slim SEO – A Fast & Automated SEO… has a 4.7/5 rating from 134 reviews.
Are All in One SEO – Powerful SEO Plugin to… and Slim SEO – A Fast & Automated SEO… free?
All in One SEO – Powerful SEO Plugin to… is free and Slim SEO – A Fast & Automated SEO… is free. Both can be downloaded from the WordPress.org plugin directory.
Which plugin has better support — All in One SEO – Powerful SEO Plugin to… or Slim SEO – A Fast & Automated SEO…?
As of April 2026, All in One SEO – Powerful SEO Plugin to… has a 100% support resolution rate while Slim SEO – A Fast & Automated SEO… has a 70% rate.
Which plugin is updated more frequently?
All in One SEO – Powerful SEO Plugin to… was last updated 3 weeks ago and Slim SEO – A Fast & Automated SEO… was last updated 5 days ago.

Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.