The song features heavy use of Auto-Tune, creating a sound that Vulture described as a "mindfuck". Petras' verse was described by Paper as "possibly the most bombastic 60 seconds in her discography to date." Her verse builds up to "one of the most exciting climaxes of the entire record, cushioned by a question of silence and torn to shreds by a mind-bending drum sample." The final 30 seconds of the song contains "distorted blaring noise taking listeners by surprise" and earned commentary from multiple critics. Paper called it "uncomfortable and restricting on top of being nearly painful if your volume's turned up loud enough." According to The Ticker, "This abrasive sound on 'Click' isn’t rare for Charli XCX or PC Music, but the bratty verses from Kim Petras and the English singer drive the piercing production with an equal amount of punch that makes it stick out, even on such a sonically focused record like Charli."
Reception
Stereogum called the song "the sort of track that only Charli could pull off, silly and serious at the same time, making the 30 seconds before you pull up to a party sound like the end of the world."
No Boys Remix
On 11 October 2019, an official remix entitled "Click " was released. The remix keeps Petras' verse from the original, but replaces Tommy Cash with American singer Slayyyter.
Background
Charli started teasing the remix on her Twitter account on 11 October 2019. It was released the same day, but due to technical issues it wasn't available anywhere outside of the United Kingdom. It got released worldwide on 14 October.
Critical reception
Paper said of Slayyyter's verse, "Her contribution enhances the track's powerful female presence, making it an official girl-power anthem."
On 15 May 2020, a new remix titled "C2.0" was released as part of her fourth studio album How I'm Feeling Now.
Background
In a track-by-track breakdown on Apple Music, Charli has said about the track:
A. G. sent me this beat at the end of last year called "Click 2.0"—which was an updated version of my song "Click" from the Charli album. He had put it together for a performance he was doing with Caroline Polachek. I heard the performance online and loved it, and found myself listening to it on repeat while—and I’m sorry, I know this is so cheesy—driving around Indonesia watching all these colours and trees and rainbows go by. It just felt euphoric and beautiful. Towards the end of this recording process, I wanted to do a few more songs and A. G. reminded me of this track. The original "Click" features Tommy Cash and Kim Petras and is a very braggy song about our community of artists. It’s talking about how we’re the shit, basically. But through this, it’s been transformed into this celebratory song about friendship and missing the people that you hang out with the most and the world that existed before.
