Keila replaces 3 paid apps
One open-source tool, 3 subscriptions it can stand in for. Each pairing below is curated and verified by hand, with the honest catch spelled out. No votes, no pay-to-list.
LicenseAGPL-3.0+
Platformsyour machine or their cloud
InstallationKeila Cloud signup or Docker image plus PostgreSQL
DataSelf-hosted subscribers, campaigns, and job state live in PostgreSQL; uploaded campaign assets live on persistent server storage.
SetupSelf-hosting requires Docker, PostgreSQL, a public HTTPS domain, and credentials for SMTP, SES, SendGrid, Mailgun, or Postmark.
facts verified 2026-08-10
A friendly campaign editor, forms and tracking without contact pricing; delivery is your SMTP provider's job.
the catchKeila gives you a friendly campaign editor and tracking, but delivery reputation, SMTP configuration, backups, and upgrades become your responsibility rather than Campaign Monitor's.
the verdict →all Campaign Monitor alternatives →
A self-hosted list, forms and campaigns without contact caps; you supply deliverability.
the catchKeila removes contact pricing, but you must supply the server, SMTP provider, deliverability monitoring, backups, and updates that EmailOctopus manages.
the verdict →all EmailOctopus alternatives →
Self-hosted newsletters and signup forms with a real visual editor; SMTP setup replaces onboarding calls.
the catchKeila replaces newsletters and signup forms, but SMTP authentication, deliverability, server maintenance, backups, and upgrades replace Constant Contact's guided hosted setup.
the verdict →all Constant Contact alternatives →last updated 2026-08-10 · up to $348/yr replaced · no votes, no pay-to-list
