# Sky Seo vs WhoKnew Directory SEO

> Sky Seo vs WhoKnew Directory SEO compared on installs, downloads, ratings, updates, compatibility and support. WhoKnew Directory SEO comes out ahead, winning 5 of 6 head-to-head checks against Sky Seo.

**WhoKnew Directory SEO comes out ahead, winning 5 of 6 head-to-head checks against Sky Seo.** Choose Sky Seo if you care most about active installs. Choose WhoKnew Directory SEO if you care most about downloads (30 days), download trend and health score.

| | Sky Seo | WhoKnew Directory SEO – Repository Ranking & Readme Optimizer |
|---|---|---|
| Active installs | 10+ ✅ | <10 |
| Downloads (30 days) | 49 | 57 ✅ |
| Download trend | -7.5% | 0% ✅ |
| Rating | — | — |
| Reviews | 0 | 0 |
| Health score | 23/100 | 60/100 ✅ |
| Last updated | 11 years ago | 2 months ago ✅ |
| Tested up to | WP 4.4.34 | WP 7.1.3 ✅ |
| Support resolved | — | — |
| Requires PHP | Any | 7.4+ |
| First released | Dec 2015 | Apr 2026 |

## Frequently asked questions

### Which is better, Sky Seo or WhoKnew Directory SEO?
WhoKnew Directory SEO comes out ahead, winning 5 of 6 head-to-head checks against Sky Seo. Choose Sky Seo if you care most about active installs. Choose WhoKnew Directory SEO if you care most about downloads (30 days), download trend and health score.

### Is Sky Seo more popular than WhoKnew Directory SEO?
Sky Seo is the more popular of the two with 10+ active installs, compared with <10 for WhoKnew Directory SEO.

### Can I use Sky Seo and WhoKnew Directory SEO together?
Both plugins cover plugin seo, 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 Sky Seo and WhoKnew Directory SEO 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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Source: live WordPress.org data · HTML version: https://pageforge.pro/directory/compare/sky-seo-vs-whoknew-directory-seo/ · Generated 2026-10-18 01:00 UTC by PageForge