LicenseDNS vs Shipmail

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

LicenseDNS compared with Shipmail
Detail	LicenseDNS	Shipmail
What it does	DNS-based software licensing secured by DNSSEC	Business email hosting with calendars, newsletters, and booking pages on your own domain
Stage	Not given	Startup
Founded	Not given	2026
Based in	Not given	PT
Pricing model	Paid	Free trial
Pricing	€9 per user per month, including up to 1000 licenses generated, unlimited license activations, and unlimited license deactivations. Free trial for 10 days available.	Solo $4/mo (2 mailboxes), Pro $9/mo (4 mailboxes), Team $29/mo (12 mailboxes), Scale from $2.50/mailbox for the first 50 mailboxes. 14-day free trial on all plans. Add-ons: 100,000 newsletter sends $20/mo or $200/yr, 1,000,000 newsletter sends $149/mo or $1,490/yr.
Key features	DNS-based license verification using DNSSEC cryptography Broad compatibility across all operating systems and programming languages Web-based License Manager with real-time monitoring Flexible license binding with hardware fingerprints and system properties Support for multiple licensing models Custom license key format options Granular team access control in License Manager Lightweight performance overhead using DNS queries	Calendar with CalDAV sync to phone and laptop Booking pages with automatic meeting links Zoom and Google Meet integration Shared inboxes for team collaboration Newsletters with send limits and subscriber tracking Email API and SDKs for transactional email IMAP and SMTP support for any email client Up to 50 custom domains per organization AI assistant in mailbox for writing and drafting Catch-all addresses for domain email routing
What makes it different	Eliminates need for complex in-house cryptographic implementations First and only DNS-based licensing solution leveraging DNSSEC Works in restrictive network environments where other protocols fail Reduced application complexity and vulnerability risk	All features in every plan regardless of tier Includes calendar and booking pages without separate tools Unified billing for email, calendar, and newsletters Pay per mailbox, not per user
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	2 −1 (down) since last check	32 no change since last check
Trust Flow (Majestic)	4	13
Citation Flow (Majestic)	21	32
Referring domains (Majestic)	24	111

5 details filled in for both companies.

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