day3 vs Go Mail Merge

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

day3 compared with Go Mail Merge
Detail	day3	Go Mail Merge
What it does	Email marketing and transactional email, billed by what you send	Automate cold and marketing emails with high deliverability in Gmail
Stage	Startup	Established
Founded	2026	2019
Based in	DK	US
Pricing model	Freemium	Paid
Pricing	Free tier: $0/mo with 100 emails/month to your own team. Paid plans start at $1/mo for 1,000 emails/month: 1k ($1), 5k ($3), 10k ($5), 25k ($8), 50k ($14), 100k ($25), 250k ($60), 500k ($115), 1,000,000 ($220). All plans include unlimited subscribers and AI writing assistant.	Individual plan: $9.99/month or $119.99/year (monthly billed as $9.99USD). Enterprise plan: custom pricing. Both include up to 5 simultaneous campaigns, 4 follow-up sequences, personalized and static attachments, email tracking, unsubscribe links, and email support 7 days a week.
Key features	Campaigns with simple compose and send workflow Automations with canvas-based workflows Unlimited audiences with filtering Signup forms with multiple install methods Email authentication with DKIM, SPF and DMARC Metrics for deliverability and engagement AI writing assistant for drafts and rewrites REST API and MCP for integration Hard monthly send cap with no overage charges Cloudflare DNS integration for domain setup	Schedule up to 5 active campaigns simultaneously Email sequences of up to 4 follow-ups per campaign Personalized attachments from Google Drive Real-time email tracking (opens, clicks, replies, bounces, unsubscribed) Staggered email delivery to appear from a person Send from Gmail aliases Cancel active campaigns at any time Auto-cancel follow-ups on reply or unsubscribe
What makes it different	Built in the EU, hosted in the EU with full GDPR compliance Focused product with essential features only, no platform bloat Free tier with 100 real sends per month for testing Transparent pricing with no hidden fees or launch price	Only Mail Merge add-on for Google Workspace with simultaneous campaign scheduling and automated follow-ups Automatic personalized attachments without manual file permission changes Direct support from the creator 7 days a week Highest deliverability rate with short tracking URLs
Community votes	0	0
DR (Domain Rating by Ahrefs)	8 no change since last check	24 +1 (up) since last check
Trust Flow (Majestic)	5	4
Citation Flow (Majestic)	27	25
Referring domains (Majestic)	37	48

8 details filled in for both companies.

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