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+
16
25
Open Page Rank 7+
25
65
Open Page Rank 6+
34
113
Open Page Rank 5+
48
159
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
2,058
588
United Kingdom
532
253
Canada
391
232
Australia
299
167
India
179
253
France
130
161
Germany
138
150
Spain
92
135
Audience countries from the Chrome UX Report, top markets of either technology.
Real user performance
| Metric | Acuity Scheduling | AddEvent |
|---|---|---|
| LCP | 1.6 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, Aug 2026. Lower is better; green meets Google's "good" threshold. This describes the sites that use each technology, not the technology's own overhead.