SendHeron vs Warmerly

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

SendHeron compared with Warmerly
Detail	SendHeron	Warmerly
What it does	Lifecycle email automation that sets itself up. You approve every word.	Email warmup and cold outreach software that warms Gmail and Outlook mailboxes before sending campaigns
Stage	Not given	Startup
Founded	Not given	2026
Based in	BG	Not given
Pricing model	Freemium	Freemium
Pricing	Starter €19/month (up to 10,000 contacts, 50,000 emails/month), Growth €49/month (up to 40,000 contacts, 150,000 emails/month), Scale €99/month (up to 100,000 contacts, 250,000 emails/month), Max €179/month (up to 200,000 contacts, 500,000 emails/month). Free trial: 1,000 contacts and 5,000 sends fo	Free: $0/month for 1 mailbox with capped campaign sends. Starter: $19/month for 5 mailboxes with unmetered sending and 7-day trial. Growth: $49/month for 25 mailboxes. Agency: $179/month for 100 mailboxes. OneMail hosted mailboxes: $0.99–$2.99/month per mailbox depending on plan. Annual billing is t
Key features	AI-generated lifecycle sequences from website URL Tags and segments with no separate list to sync Block-based and HTML email templates Unified suppression list for transactional and marketing email REST API with 56 documented endpoints and scoped keys Multiple workspaces and brands in one subscription EU data residency with German storage Agent automation with scoped tokens	Daily DNS checks for SPF, DKIM, DMARC and blocklists Unified inbox for all replies from all mailboxes sorted by intent AI-powered first line opener using prospect's website data OneMail hosted mailboxes with pre-configured DNS LinkedIn integration for warmup and outreach in same sequence Lead database with email finder and verification before sending
What makes it different	AI automatically drafts lifecycle sequences from your website URL with human approval required EU company with data stored in Germany and published sub-processor list Unsubscribed and bounced contacts stored free Built by the team running PostFast's own lifecycle email in production	Flat-rate pricing by mailbox count with no per-email fees, even on paid plans Threaded warmup emails that mimic real email conversations instead of ping-pong Unified inbox collects all replies from every mailbox in one queue Automatic spam rescue moves warmup messages out of junk automatically LinkedIn and email outreach in one platform without separate tools
Community votes	0	0
DR (Domain Rating by Ahrefs)	20 −1 (down) since last check	24 −1 (down) since last check
Trust Flow (Majestic)	12	3
Citation Flow (Majestic)	26	27
Referring domains (Majestic)	20	31

5 details filled in for both companies.

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