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Hello everyone,

I am creating a survey to learn about supermarket private labels by showing images of the brands. Since it is a long questionnaire with several images, ideally respondents should only be able to answer on a desktop or laptop computer.

My question is whether there is a way to filter or detect which devices are used to answer so that responses cannot be submitted from mobile phones.

I am not sure if there is something native in LimeSurvey within the settings or some other solution.

Thank you very much to everyone.

Checking the display resolution via JavaScript and then deciding what to offer the respondent seems still the way to go.
You use LS5. Perhaps you can find inspiration in this thread:
forums.limesurvey.org/forum/can-i-do-thi...used-device?start=30