Respondents were recruited through apps on their devices. The feedback will be used by Tomorrow Focus for mobile marketing.

The firm said that as a result of the survey it holds “rich data” about its iPhone and iPad app users.

Karin Rothstock, the firm’s head of research, said: “Instead of selling our advertising space based purely on click rates and the number of downloads, which is what most of our competitors do, we can offer potential clients a fuller picture of what they are buying.”