Blog
Notes on the questions we answer
Longer explanations of what the apps do and why, written for people deciding whether to trust an answer. No statistics we did not measure, no testimonials.
Dupely
Designer look for less: how similarity scoring works in Dupely
What happens between the photo and the comparison card: identification first, a fixed set of attributes, up to three alternatives each with its own probability, and the rules against inventing one.
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How to read an ingredient label abroad
Where the allergen bold goes, why 'may contain' is a separate question, what E and INS numbers mean, and the one rule that keeps you safe when you cannot read the label at all.
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What makes a fragrance dupe close, and what a score cannot tell you
Notes, concentration, drydown and the bottle: the four things a perfume dupe can match or miss, and why Dupely reports a probability rather than a percentage of ingredients.
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Which E-numbers are not vegan?
The additives that are always animal-derived, the longer list where it depends on the manufacturer, and the misleading names that are usually fine. From the table Bitewise uses.
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