Acuity Scheduling vs AddEvent
Head-to-head usage across the sites we track.
Top sites by authority
Acuity Scheduling · AddEvent · how many of each technology's sites sit in the web's highest authority tiers
Open Page Rank 9+
6
5
Open Page Rank 8+
14
26
Open Page Rank 7+
23
66
Open Page Rank 6+
31
113
Open Page Rank 5+
43
157
Open Page Rank scores 0 to 10 from the open web link graph; 9+ covers only a few hundred domains worldwide.
By country
Acuity Scheduling · AddEvent · share of sites in each country using one or the other
United States
1,906
598
United Kingdom
537
271
Canada
390
250
Australia
289
166
India
165
250
France
132
177
Germany
134
153
Spain
99
155
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Acuity Scheduling | AddEvent |
|---|---|---|
| LCP | 1.7 s | 1.9 s |
| INP | 50 ms | 75 ms |
| CLS | 0 | 0 |
| TTFB | 600 ms | 900 ms |
Median site's p75 values from the Chrome UX Report, Sep 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.