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Jeremy Renner - Renner made headlines thanks to his controversial 'Jeremy Renner Official' app. Set up in 2017, the app saw the celeb post exclusive images and content, as well as message loyal fans. Trolls hijacked the app, causing it to shut down.

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Taylor Swift - In December 2017, Taylor Swift released her app, 'The Swift Life.' The immersive social app didn't last long, and was discontinued in January 2019.

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Kim Kardashian - Kim Kardashian has been behind a few apps, including the successful 'Kim Kardashian: Hollywood.' At one point, it had nearly 23 million users.

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Kendall & Kylie Jenner -

The Jenner sisters released their own 'Kendall and Kylie' app back in February 2016. It's similar to their sister's 'Hollywood,' but the Jenners made sure to put their own spin on it.

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Zendaya - The hugely popular star launched her own app in 2016. 'Zendaya: The App' collates the star's behind-the-scenes stories, along with links to her clothing line, Daya by Zendaya.

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Demi Lovato - Demi Lovato got her own game, 'Path to Fame,' in 2016. Create a character, and work your way up the music industry, striving to be an A-list singer.

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Ellen DeGeneres - The comedian and host is behind 'Heads Up!,' a fun game where you must guess what/who you are based on your friends' clues.

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Britney Spears - In 2016, Britney Spears released 'American Dream,' her own cartoon adventure app. It didn't last long, and posts indicate it was abandoned the same year.

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Jay-Z - Along with many other famous musicians, Jay-Z is a co-owner of Tidal, a streaming service which launched back in 2014.

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Nicki Minaj - 'Nicki Minaj: The Empire' hit app stores in 2016, and was active as recently as late 2018. Users were invited to create their own character and rap along with Nicki Minaj.

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Shakira - Shakira shook things up a bit with her 'Love Rocks' app. Released in October 2015, it's a tile-matching puzzle game, think Tetris meets Bejeweled.

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Tom Hanks - Tom Hanks made headlines with the release of his 'Hanx Writer' app in 2014. The innovative app transforms your iPad into a vintage typewriter.

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William Shatner - The Canadian cultural icon released 'Shatoetry' in 2012. The humorous app lets users write their own poems, then plays them back in Shatner's legendary voice.

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Mariah Carey - Mariah Carey paved the way for many celebs with her 'Carey-oke' app way back in 2009. It's no longer available, but it once offered fans the chance to sing along to the star's greatest hits.

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Lady Gaga - In 2013, Lady Gaga released an app to go with her album 'Artpop.' The app featured links to her art, music, and fashion.

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Snoop Dogg - Snoop Dogg released his own 'Snoopify' app in 2013. The app lets users add hilarious stickers to their selfies, and was pretty popular at the time.

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Madonna - In 2010, the Material Girl released an official app featuring all things Madonna. It featured news, photos, vids, and music too.

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T-Pain - T-Pain has one of the biggest successes with his 'I Am T-Pain' app. It lets users sing with T-Pain's iconic autotune effect, turning tone deaf singers into stars.

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Justin Bieber - Justin Bieber loves a selfie, so he got heavily involved with 'Shots' back in 2013. The picture-sharing app encourages users to take and share fun selfies with their friends.

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Maisie Williams - The 'GoT' star released her 'Daisie' app in 2018. The social network is aimed at young creatives, connecting them with fellow creative workers.

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Alicia Keys - The singer did something different with 'The Journals of Mama Mae & LeeLee.' The app allows users to have storytelling experiences with exclusive music and games.

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Katy Perry - 'Katy Perry Pop' launched in 2015, but didn't last too long. By November 2016, developers decided to discontinue the cartoon game.

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Kanye West - This one's a bit of an anomaly. In 2016, Kanye West teased his own 'Only One' app, in which users play as West's late mother. The objective is to guide Donda West through the afterlife, but the experimental game never saw the light of day.

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Chelsea Handler - The comedian developed her own app, 'Gotta Go,' in 2016. It's a self-help app that helps with scheduling calls, texts, and appointments.

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Jason Statham -

The action star got his own game in 'Sniper X,' which shot into app stores in 2016. Play as Statham, fighting opponents in hostile environments.

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Björk - Björk's one eccentric celeb, and went the extra mile with 'Biophilia.' Named after her 2013 album, the app let fans float through a digital galaxy, exploring music and art.

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Jesse Williams - The good-looking 'Grey's Anatomy' alum launched 'BLeBRiTY' in 2017. The charades-inspired app has over 25 categories for users to play around with.

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Reba McEntire - In 2011, the country star dropped her own official app. It featured a roundup of Reba's shows, as well as a forum for fans to chat among themselves.

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Julian Lennon - Julian Lennon ties together all his work on a self-named app. Fans can enjoy his music, photoshoots, documents, and explore his philanthropic work.

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Tom Daley -

Britain's Olympic diver darling released his own app in 2012. 'Tom Daley Dive' let users perform Olympic-level dives, earning gold medals along the way.

Also read up on the celebs who used cell phones for fashion accessories. 

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