Herd Effects vs NotificationX (October 2026)
Updated October 23, 2026 · Data from WordPress.org, refreshed daily · How this works
Both rank in the WordPress.org Social Proof Plugins top 10: Herd Effects at #9 and NotificationX at #2. NotificationX leads on 5 of the 6 measures we track. Every number below comes straight from WordPress.org and is refreshed every day.
Herd Effects
Social Proof Popups & Real-Time Notifications – Herd Effects
Boost conversions with real-time social proof popups and user activity notifications, encouraging visitor actions on your WordPress site.
NotificationX
NotificationX – FOMO, Live Sales Notification, WooCommerce Sales Popup, GDPR, Social Proof, Announcement Banner & Floating Notification Bar
Want to boost business trust & conversions? 97% of visitors hesitate to buy because of credibility. Instantly succeed with WooCommerce Sales Alert!
Who leads on what
NotificationX leads on 5 of the 6 measures we track.
NotificationX ranks higher on WordPress.org: #2 against #9 in Social Proof Plugins.
NotificationX has more users: 30,000+ active installs against 900+.
Not enough reviews to compare ratings fairly: Herd Effects has 15, NotificationX has 227. We compare ratings only above 50 reviews each.
NotificationX has more reviews behind its score: 227 against 15.
NotificationX was updated more recently, on October 14, 2026; Herd Effects on August 25, 2026.
NotificationX was downloaded more in the last 30 days: 42,282 times against 288.
Which one to pick
Each plugin is the better answer for the measure it actually leads on. Nothing here is a recommendation we invented.
Herd Effects
Herd Effects does not lead on any measure we track, so pick it only for something these numbers cannot show, such as a feature you need.
NotificationX
Pick NotificationX if you go by where WordPress.org itself puts them, you want the plugin more sites already run, you want the score backed by more reviews, you want the one shipping releases most recently or you want the one being installed faster right now.
Herd Effects vs NotificationX side by side
| Herd Effects | NotificationX | |
|---|---|---|
| Social Proof Plugins ranking | #9 | #2 |
| Rating | 3.9 | 4.8 |
| Reviews | 15 | 227 |
| Active installs | 900+ | 30,000+ |
| Total downloads | 61,354 | 2,024,473 |
| Downloads, last 30 days | 288 | 42,282 |
| Last updated | Aug 25, 2026 | Oct 14, 2026 |
| First published | Aug 20, 2016 | Mar 19, 2019 |
| Tested up to WordPress | 7.1.3 | 7.1.3 |
| Requires PHP | 7.4 | 5.6 |
| Pricing | Free on WordPress.org | Free + paid version |
Downloads per day, last 48 days
Herd Effects ratings
NotificationX ratings
How we compare these two
Every figure here is pulled from the WordPress.org plugin API every day at 03:00 UTC, for both plugins in the same run, so the two are always read on the same day. We compare only what the directory reports: active installs, the rating and how many reviews stand behind it, the last release date and, once we have a month of history, downloads over the last 30 days. Ratings are only called a win above 50 reviews each, because a handful of five-star reviews is not evidence. Nothing is weighted into an overall score, no measure is worth more than another, and neither Herd Effects nor NotificationX can pay to appear here: the pair exists only because both plugins reached the Social Proof Plugins top 10. Full methodology.
Herd Effects vs NotificationX: common questions
Is Herd Effects better than NotificationX?
NotificationX leads on 5 of the 6 measures we track. Neither is better at everything, and the answer depends on which measure you weigh. NotificationX ranks higher on WordPress.org: #2 against #9 in Social Proof Plugins.
Which has more users, Herd Effects or NotificationX?
NotificationX ranks higher on WordPress.org: #2 against #9 in Social Proof Plugins.
Which is rated higher, Herd Effects or NotificationX?
NotificationX has more users: 30,000+ active installs against 900+.
Are Herd Effects and NotificationX free?
Both are free to install from WordPress.org. Herd Effects may also sell a paid version or add-ons. NotificationX is listed as commercial, so a paid version or add-ons exist.
Alternatives to Herd Effects and NotificationX
Plugins that score close to both in the same WordPress.org rankings and tags.
More Social Proof Plugins comparisons
- Herd Effects vs Nudgify
- Herd Effects vs ProveSource
- Herd Effects vs SALERT
- Herd Effects vs Real Testimonials
- Herd Effects vs TrustedSite
- Herd Effects vs TrustPulse
- Herd Effects vs Rich Showcase for Google Reviews
- Herd Effects vs WiserNotify
- Herd Effects vs WP Review Slider
- Herd Effects vs WP Google Review Slider
- Herd Effects vs Widgets for Google Reviews
- NotificationX vs Nudgify
Weekly · free
What moved this week
One email a week, built from the same daily snapshots these rankings come from: the plugins that climbed, what launched, and one ranking worth a look.