Head-to-head · October 2026
Common Knowledge Join Flow vs Invitations for Slack
Common Knowledge Join Flow comes out ahead, winning 5 of 7 head-to-head checks against Invitations for Slack.
Common Knowledge Join Flow
A form for users to sign up to a paid membership for your organisation, implemented as a WordPress block.
Invitations for Slack
Invitations for Slack lets you use convenient shortcodes to show “Join us on Slack.” buttons or Slack badges…
| Metric | Common Knowledge Join Flow | Invitations for Slack |
|---|---|---|
| Active installs | <10 | 20+ |
| Downloads (30 days) | 277 | 81 |
| Download trend | +100.7% | +30.6% |
| Rating | — | 3.8/5 |
| Reviews | 0 | 6 |
| Health score | 59/100 | 31/100 |
| Last updated | 2 weeks ago | 11 years ago |
| Tested up to | WP 7.0.7 | WP 4.4.34 |
| Support resolved | — | — |
| Requires PHP | 8.2+ | Any |
| First released | Dec 2024 | Jan 2016 |
Daily downloads, last 90 days
Common Knowledge Join F…Invitations for Slack
Choose Common Knowledge Join Flow if…
You care most about downloads (30 days), download trend and health score.
- Actively developed — last update 2 weeks ago
- Small user base (<10 active installs)
- Very few reviews so far
- Needs PHP 8.2 or newer
Choose Invitations for Slack if…
You care most about active installs and reviews.
- Small user base (20+ active installs)
- No update in 10 years
- Only tested up to WordPress 4.4 (latest is 7.1)
Both compete in: join
FAQ
Common Knowledge Join Flow vs Invitations for Slack: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Oct 13, 2026
Which is better, Common Knowledge Join Flow or Invitations for Slack?
Common Knowledge Join Flow comes out ahead, winning 5 of 7 head-to-head checks against Invitations for Slack. Choose Common Knowledge Join Flow if you care most about downloads (30 days), download trend and health score. Choose Invitations for Slack if you care most about active installs and reviews.
Is Common Knowledge Join Flow more popular than Invitations for Slack?
Invitations for Slack is the more popular of the two with 20+ active installs, compared with <10 for Common Knowledge Join Flow.
Can I use Common Knowledge Join Flow and Invitations for Slack together?
Both plugins cover join, 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 Common Knowledge Join Flow and Invitations for Slack 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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