WordPress plugin comparison
Add Admin CSS vs OS Adder
At a glance
- Add Admin CSS has more active installs: 10K+, against 10+ for OS Adder.
- On a typical day, Add Admin CSS is downloaded about 59 times, OS Adder about 1.
- OS Adder has no reviews yet.
- Add Admin CSS was updated more recently: Dec 8, 2025, against Nov 19, 2015 for OS Adder.
- Add Admin CSS is tested with a newer WordPress: 6.9.11, against 4.3.34 for OS Adder.
- Add Admin CSS has been around longer: since 2011, against 2013 for OS Adder.
Line by line
Add Admin CSS leads on 6 of 6 comparable lines.
| Metric |  Add Admin CSS |  OS Adder |
|---|---|---|
| Popular rank | #1,875 | #40,641 |
| Active installs | 10K+ | 10+ |
| Downloads, last 30 days | 1.5K | 31 |
| Rating | 4.9(35) | No ratings |
| Support threads resolved | – | – |
| Tested up to | 6.9.11 | 4.3.34 |
| Search multiplier | ×0.57 | ×0.00 |
| Last release | 11 months ago | 11 years ago |
| Requires PHP | – | – |
From WordPress.org's public data, refreshed every night. Downloads are WordPress.org's official daily figures for the last 30 days.
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