WordPress plugin comparison

Sign In Scheduling Online Appointment Booking System vs HarborBook

by Sign In Scheduling (formerly 10to8)

700+ installs5.0

HarborBook

by Coresol Studio

Fewer than 10 installs

At a glance

Sign In Scheduling Online Appointment Booking System has more active installs: 700+, against fewer than 10 for HarborBook.
On a typical day, Sign In Scheduling Online Appointment Booking System is downloaded about 11 times, HarborBook about 3.
HarborBook has no reviews yet.
HarborBook was updated more recently: Sep 7, 2026, against Apr 4, 2024 for Sign In Scheduling Online Appointment Booking System.
HarborBook is tested with a newer WordPress: 7.1.4, against 6.3.14 for Sign In Scheduling Online Appointment Booking System.
Sign In Scheduling Online Appointment Booking System has been around longer: since 2016, against 2026 for HarborBook.

Metric	Sign In Scheduling Online Appointment Booking System	HarborBook
Popular rank	#7,764	#58,050
Active installs	700+	Fewer than 10
Downloads, last 30 days	186	47
Rating	5.0(3)	No ratings
Support threads resolved	–	–
Tested up to	6.3.14	7.1.4
Search multiplier	×0.05	×0.05
Last release	2 years ago	2 months ago
Requires PHP	–	8.1

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

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