Omphalis vs Signguin

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

Omphalis compared with Signguin
Detail	Omphalis	Signguin
What it does	A workspace for reading articles, PDFs, videos and podcasts with AI explanations and cross-source questions	Free email signature generator for Gmail, Outlook and Apple Mail
Stage	Startup	Not given
Founded	2026	Not given
Based in	US	CZ
Pricing model	Freemium	Not given
Pricing	Free plan with 100 comprehension units/month. Pro $9/month with 300 units. Premium $19/month with 600 units. Scholar $39/month with 1,200 units. Annual billing saves 17%: Pro $90/year, Premium $190/year, Scholar $390/year. Unit packs from $10 for 200 units.	Free: 3 designs, logo and colors from website, works in Gmail/Outlook/Apple Mail, includes small "Made with Signguin" link. Premium: $12 one-time payment (not a subscription) includes photo in signature, all designs, removes branding link, adds action buttons, banners and Save contact.
Key features	Clean reading view for articles, PDFs, podcasts, videos and newsletters Inline explanations for difficult passages written from surrounding context Cross-source question answering with citations Structural navigation showing key moments and density maps Connected note-taking tied to source passages Natural voice narration for listening Notebook feature for gathering related sources with notes and questions Discover shelf suggesting rights-cleared reading related to your library Course builder to create lessons from saved documents Integration with ChatGPT and browser extensions for Chrome and Firefox	Automatically pulls logo and brand colors from your website Multiple designs for different industries Works with Gmail, Outlook, Apple Mail, and other email apps Email-safe code that displays correctly in Outlook Dark mode compatible Mobile-optimized layouts Action buttons and banners in Premium
What makes it different	Explanations stay beside the source instead of requiring you to leave to look up terms Questions cite specific passages from sources so answers are traceable Notes automatically stay attached to the passages that prompted them Works with PDFs, videos, podcasts and articles in one unified workspace	Free with no sign-up required, works immediately without account creation Automatically extracts branding from your website in seconds Premium is one-time payment, not a subscription
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	1	0
DR (Domain Rating by Ahrefs)	43 +1 (up) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	22	0
Citation Flow (Majestic)	27	0
Referring domains (Majestic)	208	0

5 details filled in for both companies.

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