A birdsong app, an allergy cure and a cool glass of gavi: Alan Carr, Mary Berry, Maya Jama and others on the thing that makes their summer

From a slice of cucumber to a sticky cuddle, celebrities reveal their essential companion for a blue-sky day

I’ve got this new app called ChirpOMatic which identifies different birdsong. Melanie Sykes told me about it. We went for a walk and she held it up and said, “Oooh there’s a blackbird. There’s a buzzard.” It will change your life, whether you’re a bird fanatic or not.