Interactive Demos for UX Researchers
August 21, 2026
Researchers reach for a prototyping tool by default, which is right when testing something unbuilt and unnecessarily expensive when testing something that already exists.
A captured demo of the live product is faster to produce and more honest as stimulus.
Where a demo beats a prototype
- The thing already exists. Rebuilding a shipped flow as a prototype introduces differences you will then be testing.
- Unmoderated studies, where a link that needs no login and no setup is the whole requirement.
- Comprehension testing -- can someone tell what this screen does, in what order do they read it.
- Remote sessions, where sharing a build or a staging login is friction the participant does not deserve.
Where a prototype still wins
Anything unbuilt, anything requiring free exploration, and any study where the participant must be able to go wrong. A stepped demo is a guided path, so it cannot answer "would they find it".
It answers "do they understand it", which is a different and frequently more urgent question.
Testing two versions
Capture the current flow, capture a modified one, and put each in front of a different group. Because both are captures of real interfaces, differences in response are about the design rather than about fidelity.
That is hard to achieve with a prototype against a live product, where the prototype always looks newer.
A caution about the guidance
Captions tell the participant what to think, which is exactly what you do not want in research. Strip them, or the study measures your captions.
A demo with no captions and no tooltips is a poor marketing asset and a good research one — worth keeping as a separate copy rather than reusing the published version.
Frequently asked questions
- Can interactive demos be used for UX research?
- Yes, as stimulus for concept and comprehension testing of flows that already exist. A capture of the live product avoids the differences a rebuilt prototype introduces, and a link needing no login suits unmoderated studies.
- When should I use a prototype instead?
- For anything unbuilt, anything needing free exploration, and any study where the participant must be able to go wrong. A stepped demo is a guided path, so it cannot answer "would they find it" -- only "do they understand it".
- Should research demos have captions?
- No. Captions tell the participant what to think, so the study ends up measuring your captions. Keep a separate uncaptioned copy for research rather than reusing the published marketing version.
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