| #1 | Event Tickets and Registration | 24 | 3,407 | 4,218 | 90k+ | | | Non-prefixed global variable |
| #2 | Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce | 24 | 2,677 | 2,129 | 10k+ | | | Text Domain Mismatch |
| #3 | RegistrationMagic – Custom Registration Forms, User Registration, Payment, and User Login | 22 | 3,652 | 5,134 | 8k+ | | | Non-prefixed global variable |
| #4 | Event Booking Manager for WooCommerce – Sell Tickets, Event Registration, RSVP & Event Calendar | 24 | 977 | 2,178 | 7k+ | | | Non-prefixed global variable |
| #5 | Registrations for the Events Calendar – Event Registration Plugin | 24 | 404 | 944 | 7k+ | | | Non-prefixed global variable |
| #6 | Ticket Tailor — Event Ticketing & Registration | 86 | 3 | 3 | 4k+ | | | Non Enqueued Script |
| #7 | RSVP and Event Management | 24 | 345 | 624 | 3k+ | | | Direct Query |
| #8 | Tickera – Sell Tickets & Manage Events | 89 | 5 | 26 | 2k+ | | | Non-prefixed class |
| #9 | Event Espresso – Event Registration & Ticketing Sales | 20 | 12,698 | 2,135 | 600 | | | Text Domain Mismatch |
| #10 | Event Monster – Event Manager, Event Booking, Event Ticket & Registration | 26 | 804 | 848 | 600 | | | Non-prefixed global variable |
| #11 | Event Genius – Event Management, Events Calendar, Registration, and RSVP | 25 | 197 | 1,684 | 500 | | | Non-prefixed global variable |
