WordPress plugin comparison

Add to Calendar Button vs Calendar.online / Kalender.digital

Add to Calendar Button

by Add to Calendar

3K+ installs5.0

Calendar.online / Kalender.digital

by kalender.digital

2K+ installs4.4

At a glance

Add to Calendar Button has more active installs: 3K+, against 2K+ for Calendar.online / Kalender.digital.
On a typical day, Add to Calendar Button is downloaded about 49 times, Calendar.online / Kalender.digital about 24.
Add to Calendar Button is rated higher: 5.0 out of 5 from 11 reviews, against 4.4 from 7 reviews.
Add to Calendar Button was updated more recently: Sep 30, 2026, against Jul 17, 2026 for Calendar.online / Kalender.digital.
Both are tested up to WordPress 7.1.4.
Calendar.online / Kalender.digital has been around longer: since 2019, against 2023 for Add to Calendar Button.

Add to Calendar Button leads on 6 of 6 comparable lines.

Metric	Add to Calendar Button	Calendar.online / Kalender.digital
Popular rank	#3,677	#4,912
Active installs	3K+	2K+
Downloads, last 30 days	1.6K	398
Rating	5.0(11)	4.4(7)
Support threads resolved	100%	–
Tested up to	7.1.4	7.1.4
Search multiplier	×0.87	×0.66
Last release	1 month ago	3 months ago
Requires PHP	7.4	5.3

From WordPress.org's public data, refreshed every night. Downloads are WordPress.org's official daily figures for the last 30 days.

Track your plugin against its rivals every day: rank, installs, downloads, ratings and their releases, with alerts when anything moves.