compare

BillionMail vs Mautic

The same facts for both, read from GitHub every night, and the relation a person reviewed.

BillionMail vs Mautic
Fact	BillionMail	Mautic
Language	Go	PHP
Licence	AGPL-3.0	Other
Stars	16k	11k
Latest	v4.9	7.2.1
Last push	2026-06-11	2026-10-06
Release cadence	about 20 days between releases	about 40 days between releases
Active contributors	0 commit authors on the default branch in the last 90 days	33+ commit authors on the default branch in the last 90 days
Flags	none	none

How they relate

Both replace Mailchimp. Alternatives to Mailchimp →
PartialBillionMailCampaigns and subscriber lists sent from a bundled mail server, with webmail included.
Full replacementMauticEmail campaigns, segments, landing pages and automation.