Add Admin CSS vs Slate Admin Theme (2026)

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

Add Admin CSS

Add Admin CSS

4.9(35)

10K+ active installs

Free

Updated 3 months ago
View Add Admin CSS
VS
Slate Admin Theme

Slate Admin Theme

4.7(44)

6.0K+ active installs

Free

Updated 4 years ago
View Slate Admin Theme

Quick Verdict

As of April 2026, Add Admin CSS has a higher user rating (4.9/5 from 35 reviews) and leads in active installations (10K+ vs 6.0K+). Both are free WordPress plugins. Add Admin CSS has accumulated 140K+ total downloads while Slate Admin Theme has 141K+.

Detailed Comparison

Rating
4.9/5Add Admin CSS
Slate Admin Theme4.7/5
Total Reviews
35Add Admin CSS
Slate Admin Theme44
Active Installs
10K+Add Admin CSS
Slate Admin Theme6.0K+
Total Downloads
140K+Add Admin CSS
Slate Admin Theme141K+
Support Resolution
N/AAdd Admin CSS
Slate Admin ThemeN/A
Last Updated
3 months agoAdd Admin CSS
Slate Admin Theme4 years ago
First Released
2011Add Admin CSS
Slate Admin Theme2014
Age
15 yearsAdd Admin CSS
Slate Admin Theme12 years
WP Requires
5.5+Add Admin CSS
Slate Admin Theme4.0+
PHP Requires
false+Add Admin CSS
Slate Admin Themefalse+
Business Model
FreeAdd Admin CSS
Slate Admin ThemeFree
Latest Version
2.5.1Add Admin CSS
Slate Admin Theme1.2.4

Rating Breakdown

Add Admin CSS

4.9/5(35 reviews)
5
97%
4
0%
3
0%
2
3%
1
0%

Slate Admin Theme

4.7/5(44 reviews)
5
82%
4
11%
3
2%
2
2%
1
2%

Recent Reviews

Add Admin CSS Reviews

by ellencarnahan

Very Nice Perk

I really like to customize my admin experience, and installed this plugin to distinguish the icons when other plugin developers default to things like “post icon.” Seems to lack support but that is ho

by mikeecho

AWESOME

Awesome plugin, works fantastic Well done!

by ipchania

Working great !!!

Working great !!!

Slate Admin Theme Reviews

by rob0m

It’s beautiful

Slate make wp=admin a pleasure to use.

by zaka888

Cant save customizer after installing this plugin

This plugin now pretty much destroys the customizer as well as UX builder. Do not download. Very buggy

by Li-An

Good

This admin theme is particularly well thought for High resolution screens so it’s better than default theme.

Frequently Asked Questions

Is Add Admin CSS or Slate Admin Theme more popular?
Add Admin CSS has 10K+ active installations while Slate Admin Theme has 6.0K+. Add Admin CSS is the more widely-used plugin as of April 2026.
Which has better ratings — Add Admin CSS or Slate Admin Theme?
Add Admin CSS has a 4.9/5 rating from 35 reviews, while Slate Admin Theme has a 4.7/5 rating from 44 reviews.
Are Add Admin CSS and Slate Admin Theme free?
Add Admin CSS is free and Slate Admin Theme is free. Both can be downloaded from the WordPress.org plugin directory.
Which plugin has better support — Add Admin CSS or Slate Admin Theme?
Support resolution data is not available for all plugins. Check each plugin's WordPress.org support forum for current response quality.
Which plugin is updated more frequently?
Add Admin CSS was last updated 3 months ago and Slate Admin Theme was last updated 4 years ago.

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