Observed arrival · 2026-09-22
AddonMate puts Czech business checks inside the browser
A suite of 15 Chrome add-ons for checking companies, VAT numbers, marketplace margins, official-mail deadlines, and competitor prices without leaving the page you are working on.
- For
- Czech small businesses and accountants
- Worth noticing
- The suite covers official-mail deadlines, Czech company identifiers, EU VAT checks, Allegro margins, and Heureka price rankings.
Field notes
The suite is organized around specific browser contexts rather than a single dashboard: invoices, marketplaces, official electronic mailboxes, and price-comparison pages. Examples show a company identifier being checked against business records, an Allegro offer evaluated after an 8% commission, and a Datová schránka message receiving a deadline and reminder. The page separates finished extensions from those still in development and lists individual monthly Pro prices.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue