Last updated: 9 July 2026
Mutantwork is operated by Richard Brereton, trading as Mutantwork, based in Northern Ireland, United Kingdom. You can contact us at rick@mutantwork.com.
This policy covers mutantwork.com and all tools hosted on it, including Prompt Power Pro, Data Safety Layer, Mutant Verify, NI Trade Guard Pro, and the ComfyUI Mutantwork Power Pack.
We collect as little as possible. Here is a breakdown by category:
Analytics (Google Analytics 4)
We use Google Analytics 4 (measurement ID: G-LVT03FEYKE) to understand which pages are visited and how people use the site. GA4 collects anonymised usage data including pages visited, approximate location (country/city level), device type, and session duration. This data is processed by Google and subject to their Privacy Policy. IP addresses are anonymised. You can opt out via Google's opt-out tool.
Purchases (Gumroad)
If you purchase Prompt Power Pro or Data Safety Layer, payment is processed by Gumroad. We receive your email address and purchase confirmation from Gumroad. We do not store your payment card details — those remain with Gumroad. See Gumroad's Privacy Policy.
Third-party AI detection (Mutant Verify)
Mutant Verify optionally uses the Hive AI API for image analysis. If you use this feature, your image is sent to Hive AI's servers for processing. Bring-your-own-key (BYOK) mode means your API key is stored in your browser's localStorage only — it never passes through our servers.
Everything else
Data Safety Layer, NI Trade Guard Pro, and the ComfyUI Power Pack run entirely in your browser or locally on your machine. No data is sent to our servers.
This site uses cookies set by Google Analytics 4. These are analytics cookies used to distinguish users and sessions. They do not contain personally identifiable information. By continuing to use this site you consent to these cookies. You can block or delete them via your browser settings at any time.
Google Analytics data is retained for 14 months by default, after which it is automatically deleted. Purchase records from Gumroad are retained according to Gumroad's own retention policy. We do not retain personal data beyond what is strictly necessary.
If you are based in the UK or EEA, you have rights under UK GDPR including:
To exercise any of these rights, contact rick@mutantwork.com.
This site links to third-party services including Gumroad, GitHub, and the Chrome Web Store. We are not responsible for the privacy practices of those sites.
If we make material changes to this policy, we will update the date at the top of this page. Continued use of the site after changes constitutes acceptance of the updated policy.
Questions about this policy? Email rick@mutantwork.com.