Whilst in the villa, each Islander has their own phone in which they can only contact other Islanders via text – or receive texts informing them of the latest challenges, dumping or recoupling. Islanders and couples are typically faced with many games and challenges to take part in designed to test their physical and mental ability, with the winners getting special prizes afterwards. Some Islanders are also sent on dates outside the villa, or can win dates by winning challenges.

On 13 February 2015, it was confirmed that Love Island would be returning, and would be aired on ITV2. However this series would include members of the public rather than celebrities. On 18 April 2015, it was announced that Caroline Flack would be hosting the show. The series finally returned on 7 June 2015 with a live special showing the new Islanders enter the villa. During the series a number of guests entered the villa including Calum Best, who was one of the Islanders in the original series back in 2005, and went on to win the series. Mark Wright also made a guest appearance in this series DJing for Lauren Richardson's birthday party. The series ended on 15 July 2015 and was won by Jess Hayes and Max Morley. Islanders Cally Jane Beech and Luis Morrison became the first couple from the show to have a baby together.

The second series was confirmed on 14 February 2016, and began airing on 30 May 2016. This series featured the first Islander to be removed from the villa. Malia Arkian only spent a matter of hours in the villa before she was removed from the series by the producers after an altercation with Kady McDermott. It also included a number of Islanders who decided to voluntarily leave the villa, the first being Rykard Jenkins. Also during the series, Islander Zara Holland was stripped of her Miss Great Britain title due to her behaviour in the villa. The second series also included Sophie Gradon and Katie Salmon becoming the first same-sex couple in the show. The series was eventually won by Cara De La Hoyde and Nathan Massey on 11 July 2016.

On 1 and 2 October 2017, Chris Hughes and Kem Cetinay starred in their own spin-off show, Chris & Kem: Straight Outta Love Island, which followed the popular double act as they write a rap song to perform at a Ministry of Sound club night. The two-part series also starred Chris and Kem's girlfriends from Love Island, Olivia Attwood and Amber Davies. It was broadcast on ITV2.

In March 2018, a fly-on-the-wall documentary spin-off titled Chris and Olivia: Crackin’ On was aired and followed the life about contestants; Chris Hughes and Olivia Atwood after Love Island and their dramatic split. Unlike the other spin-offs and the main show, it was broadcast on ITVBe.