These connections ship inside WP Sync core, so every licensed customer has all of them without buying a pack. Counted from the plugin source at version 1.0.88 there are 38 registered built in autoresponder connections.
The full list:
- ActiveCampaign, Acumbamail, AWeber Developer OAuth, AWeber Legacy, beehiiv, BirdSend, Brevo, Campaign Monitor, ConvertKit or Kit, Customer.io
- Drip, eMailChef, EmailOctopus, Encharge, Flodesk, FluentCRM, GetResponse, GoHighLevel, HubSpot, Keap or Infusionsoft
- Klaviyo, Loops, Mailchimp, MailerLite, Mailjet, MailPoet, Mailvio, MailWizz, Moosend, Omnisend
- Ortto, Sender.net, SendFox, Sendiio, SendX, Sendy, Systeme.io, VBOUT
Which ones can be a source:
34 of the 38 can read new contacts and therefore act as a source. The four that are destination only are AWeber Legacy, Customer.io, Mailjet and SendFox. All 38 can act as a destination.
Instant push autoresponders:
Thirteen of the built in connections deliver new contacts to your site the moment somebody subscribes, rather than waiting for the poll: Acumbamail, Brevo, Drip, Encharge, Flodesk, Loops, MailPoet, Moosend, Ortto, Sender.net, Sendiio, SendX and Sendy.
Beta connections:
Two are marked beta at this version, MailWizz and VBOUT. Beta means fully functional but possibly needing small tweaks on unusual account setups.
A note on AWeber:
AWeber appears twice because there are genuinely two connection methods. Use AWeber Developer OAuth if you want AWeber to be a source. AWeber Legacy is intentionally destination only. This roster grows between releases, so the Connections tab and the in plugin Training tab always show the exact set for the version you have installed.