The fashion set might be divided on whether they’d wear wedge trainers, menswear as womenswear or if you can wear jumpers all year round, but there’s one thing you can bet they’ll all have: an iPhone or some other all-singing-all-searching digital device that once only seemed either the stuff of dreams or like something Al from Quantum Leap might use.

When TechCrunch suggested that a set of people who are already amazingly stylish probably didn’t need apps to make them any cooler, instead favouring functional things to help hail a cab or edit images, we wondered, what apps are fashion insiders using right now? So, we asked them…    

Laura Weir – Fashion Features Director, Sunday Times Style
My key apps are the ones that help me stay on top of my hyper-connected world - Instagram, Twitter, Facebook, Vine and recently Snapchat (it's not just for teenagers and perverts - I can vouch for the former 100%).

I also use Nike+ Running to give me a bit of boost - the promise of hearing Paula Radcliff's voice at the end of my run really does help to encourage me to push myself.

My new favourite silly app? Prank mirror.

Sali Hughes – Writer and Beauty columnist, The Guardian
I rely very heavily on apps. I use Tapatalk constantly to stay in touch with my community - it makes any forum a cinch to use. 

Even if I didn't work for The Guardian, I'd say it is without question the best designed newspaper app by a mile. 

I check in with Facebook and Twitter throughout the day, but Instagram is the one social app that never gets annoying - total joy giver. 

Eva Wiseman – Commissioning editor, The Observer
I love the This American Life app, which has a huge archive of their fantastic stories, and Penguin's Poem's by Heart, which you can recite along with in bed. 

Dolly Alderton – TV producer and writer
My friends and I use Snapchat almost daily to send and receive captioned videos of cats and strange people on the tube.  

I tend to waste hours on my life on the overground using the Pinterest app. This is when I should be reading Sartre but instead tend to endlessly pin photos of striped cushions and Chloé shirts. 

Instaframe has been a real joy for an Instagram-addict like me. It allows you to make a collage of pictures and upload them to Instagram and use the normal filters. So instead of having just a lunch photo, you can have a lunch mood board, which is important to me. 

Emily Johnston – blogger, Fashion Foie Gras
Net-a-Porter - I now have a dirty habit of shopping to and from work. It's become a real problem, not for my closet, but definitely for my credit card.

Instagram - you'll find a constant stream of inspiration on this application.