Zameira Hersi, a leisure analyst at research group Mintel, says that the company’s success is down to how convenient it is for people to use.

“By making it easy to find, book and pay for classes, ClassPass helps to remove some of the barriers to being active,” she says.

However, Ms Hersi adds that the firm’s prices might put a limit on future growth, because “many people may feel that they get more for their money if they stick with their current gyms”.

To drive further expansion the company is now also enabling users to book things like facials, acupuncture and massages. And it hopes to move into photography and arts and crafts classes.

Since last year, Payal’s job title has been executive chairman, after she relinquished the chief executive role. Explaining the change, she says: “I wanted to add value for the company, and for me that was freeing up my time to work on the things I wanted to do.”

Her remit now includes focusing on new products, branding and marketing. She also makes time to help run her own dance group, the Sa Dance Company, which focuses on traditional Indian dances.

“If I think about the number of hours people have put into classes [via ClassPass]… I feel grateful and privileged,” she says.