WordPress plugin comparison
OS Adder vs WP Add Custom CSS
At a glance
- WP Add Custom CSS has more active installs: 60K+, against 10+ for OS Adder.
- On a typical day, WP Add Custom CSS is downloaded about 115 times, OS Adder about 1.
- OS Adder has no reviews yet.
- WP Add Custom CSS was updated more recently: Aug 14, 2025, against Nov 19, 2015 for OS Adder.
- WP Add Custom CSS is tested with a newer WordPress: 6.8.12, against 4.3.34 for OS Adder.
- OS Adder has been around longer: since 2013, against 2014 for WP Add Custom CSS.
Line by line
WP Add Custom CSS leads on 6 of 6 comparable lines.
| Metric |  OS Adder |  WP Add Custom CSS |
|---|---|---|
| Popular rank | #40,641 | #673 |
| Active installs | 10+ | 60K+ |
| Downloads, last 30 days | 31 | 3.6K |
| Rating | No ratings | 4.8(89) |
| Support threads resolved | – | – |
| Tested up to | 4.3.34 | 6.8.12 |
| Search multiplier | ×0.00 | ×0.49 |
| Last release | 11 years ago | 1 year 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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