Mastheads™ vs Sealis

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

Mastheads™ compared with Sealis
Detail	Mastheads™	Sealis
What it does	Source-backed articles with real bylines and fact-checking	Your voice, kept yours, wherever AI writes or speaks for you
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	AU
Pricing model	Freemium	Freemium
Pricing	Free trial: 7 days, 10 articles, no card required. Starter: $83/month (introductory price, standard $124/month), 40 articles/month, up to 3 sites, billed annually. Growth: $208/month (introductory price, standard $333/month), 120 articles/month, up to 10 sites, billed annually. Pro: $499/month (intr	Free: A$0/month with 10 rewrites per month and 1 voice. Pro: A$11.99/month with 150 rewrites per month (currently on waitlist). Studio: A$34.99/month for up to 5 clients, each with their own voice, 300 rewrites per month, and client approval pages.
Key features	Ten editorial desks that research, write, fact-check and publish Source-backed writing with inline citations AI fact-checking against actual sources fetched Named editor of record on every article AI-generated original cover images CMS integration with WordPress, Ghost, Webflow, Shopify, HubSpot, GoHighLevel Publish on your own schedule with review-by-default Multi-language support with native local registers Content API with export options Topic research and story discovery	Rewrite drafts in your voice while keeping facts, numbers and dates unchanged Measure drafts for stock phrases, rhythm, word choice and punctuation Save and learn from your writing style with every correction Studio: save a voice per client with approval pages Free Score tool with no signup required
What makes it different	Autonomous publishing with human editorial control and named bylines Every claim fact-checked against sources actually fetched, not guessed Customer owns all content outright with no lock-in No paywall scraping or deliberate defeats of access controls	Automatically flags when rewrites drop or add numbers, dates or names without user approval Learns from your corrections to improve rewrites over time Preserves formality level and register while removing template phrases Works across text, audio and visual formats with consistent voice Built on published research and test results
Community votes	0	0
DR (Domain Rating by Ahrefs)	7 +2 (up) since last check	1 no change since last check
Trust Flow (Majestic)	10	3
Citation Flow (Majestic)	29	20
Referring domains (Majestic)	81	6

5 details filled in for both companies.

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