Head-to-head · October 2026
Simple Cache Killer vs WP-Optimize
WP-Optimize comes out ahead, winning 7 of 7 head-to-head checks against Simple Cache Killer.
Simple Cache Killer
** For Multisite/Network Users ** I wrote this plugin because of several situations I’ve run in to running a…
WP-Optimize
MORE THAN A CACHING PLUGIN WP-Optimize is trusted by more than 1 million WordPress website owners to boost…
| Metric | Simple Cache Killer | WP-Optimize |
|---|---|---|
| Active installs | 10+ | 1M+ |
| Downloads (30 days) | 78 | 726.2K |
| Download trend | +34.5% | +133.5% |
| Rating | — | 4.8/5 |
| Reviews | 0 | 2,614 |
| Health score | 23/100 | 94/100 |
| Last updated | 12 years ago | 2 weeks ago |
| Tested up to | WP 4.0.38 | WP 7.1.2 |
| Support resolved | — | 77% |
| Requires PHP | Any | 7.2+ |
| First released | Feb 2014 | Jan 2009 |
Daily downloads, last 90 days
Simple Cache KillerWP-Optimize
Choose Simple Cache Killer if…
You prefer its feature set and workflow — it holds its own on the fundamentals.
- Small user base (10+ active installs)
- Very few reviews so far
- No update in 12 years
- Only tested up to WordPress 4.0 (latest is 7.1)
Choose WP-Optimize if…
You care most about active installs, downloads (30 days) and download trend.
- One of the most-used plugins on the web — 1M+ active sites
- Loved by users — 4.8/5 from 2,614 reviews
- Actively developed — last update 2 weeks ago
- Tested with the latest WordPress (7.1)
- Responsive support — 77% of recent threads resolved
FAQ
Simple Cache Killer vs WP-Optimize: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Oct 4, 2026
Which is better, Simple Cache Killer or WP-Optimize?
WP-Optimize comes out ahead, winning 7 of 7 head-to-head checks against Simple Cache Killer. Choose WP-Optimize if you care most about active installs, downloads (30 days) and download trend.
Is Simple Cache Killer more popular than WP-Optimize?
WP-Optimize is the more popular of the two with 1M+ active installs, compared with 10+ for Simple Cache Killer.
Can I use Simple Cache Killer and WP-Optimize together?
Both plugins cover cache and caching, so most sites only need one. Running two plugins that do the same job can cause conflicts and slow your site down — pick the one that fits best and remove the other.
Are Simple Cache Killer and WP-Optimize free?
Yes. Both are free to download from the official WordPress.org plugin directory. Either may also offer paid upgrades from its developer.
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