Formula Foundry vs Signguin

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

Formula Foundry compared with Signguin
Detail	Formula Foundry	Signguin
What it does	Excel and Google Sheets formula editor with AI	Free email signature generator for Gmail, Outlook and Apple Mail
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	CZ
Pricing model	Not given	Not given
Pricing	Free plan with ~20 AI generations per month, 1 tab, 3 snippets, and 3 variables. Pro at $9/month (or $7/month billed annually) with unlimited tabs, snippets, variables, and larger AI budget. Business at $15/seat/month (or $12/seat/month billed annually) with shared team snippets, team management, an	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	Multi-line code editor with syntax highlighting and auto-indentation Global variables using @@ notation that update across all formulas Excel to Google Sheets formula translator Visual formula builder for no-code formula creation AI assistant for generating, debugging, and explaining formulas Reusable snippet library with team sharing on Business plan Find and replace within formulas Auto-suggest for formula functions and range names	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	Multi-line editor makes formulas readable like code instead of squished one-liners Global variables that update 500+ formulas instantly when changed Seamless Excel to Sheets translation without rewriting formulas from scratch AI assistant specialized for spreadsheet formulas, not generic chatbot Team snippet library for approved, audited formulas shared across organization	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	0	0
DR (Domain Rating by Ahrefs)	10 +1 (up) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	10	0
Citation Flow (Majestic)	25	0
Referring domains (Majestic)	22	0

4 details filled in for both companies.

More alternatives to Formula Foundry More alternatives to Signguin