Small tools. One-time prices. Zero data collection.
Ducens builds focused browser extensions that do one job well, run entirely in your browser, and cost a single one-time payment. No subscriptions, no accounts, no telemetry.
AI Visibility Checker
Is your brand cited by ChatGPT, Perplexity, and Google AI Overviews? Scan AI answers and track your mentions over time.
Free · Pro $39 one-time
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GEO Site Auditor
Score any page /100 on the 7 factors that decide whether AI search engines can find, understand, and cite it.
Free · Pro $29 one-time
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Real Profit
Your real Etsy margin after ALL fees (transaction, processing, Offsite Ads, production cost), shown right on the page.
Free · Pro $29 one-time
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Notes on generative engine optimisation
Field notes for the agencies and consultants who sell GEO: what answer engines actually need before they can cite a client page, and what we measure with our own auditor.