Amy Childs is beyond her years in a garish mini, while Diana Vickers is childlike in a colourful smock frock

PUBLISHED: 01:06 EST, 26 April 2012 | UPDATED: 01:08 EST, 26 April 2012

She may be only 21, but between her garish mini dress, bouffant hair and heavy make-up, Amy Childs lokoed well beyond her years.

Her look was in stark contrast to Diana Vickers, who may be just a year younger than Amy, but could have passed for a decade behind her with her childlike smock-style frock and pink-dyed hair.

Both girls were at the Carphone Warehouse Appy Awards, held at the Battersea Power Station in London last night.

Tight and bright: Amy Childs and Diana Vickers both attended the Carphone Warehouse Appy Awards Dinner at Battersea Power station in London last night

The lady is a vamp: Amy wore a tiny mini dress in a garish print and silver spiked heels

Miss Childs, 21, was in her TOWIE-style best in a strapless dress with the shortest of hemlines and pink and turquoise print.

Her hair was primped into bouffant curls and she gazed seductively at the camera beneath heavy fake eyelashes and a glossed pout.

She completed the looked with towering silver spiked heels.

Black and white: Georgie Thompson

Black and white: Georgie Thompson and chef Gizzi Erskine were in monochrome chic

Amy's provocative look couldn't have been further from Diana Vicker's sweet and innocent style.

The X Factor alum wore a shapeless blue and white dress with bright peach embellishment.

The pretty blonde had on-trend pale pink highlights worked through her mane, adding to the childlike vibe with her experimental hairstyle.

Short story: Suki Waterhouse, Suzi Perry, and Vicky McClure were in mini dresses for the event

It was a star-studded event, celebrating the best of the year's smartphone apps.

Georgie Thompson, Jo Wood, Dermot O'Leary and Damian Lewis were among the big names to turn out.

A League of Their Own star Georgie wore a pretty white dress with black tights.

Boys and their toys: Damian Lewis

Boys and their toys: Damian Lewis (left) and Dermot O'Leary were suited and booted

Bedhead hair: Jo Wood and Claudia Winkleman rocked their trademark messy tresses

Sultry TV chef Gizzi Erskine wore a black mini dress with her trademark beehive hairstyle.

The Gadget show presenter Suzy Perry wore a cream mini and blazer, while Claudia Winkleman wore a blue and white star dress with leggings.

Sky Sports News took home the big prize on the night, for Best App. Dominos pizza won best Food and Cooking App, while ever-popular Angry Birds won Best Game App.

Facebook pipped Twitter to win Best Social Media App, while eBay won Best Fashion and Shopping.