Sorry Tyga, I've got an empire to run! Kylie Jenner is distracted by her cell phone during dinner date in Calabasas

Kylie Jenner recently celebrated the successful launch of her new app, with the youngest member of the Kardashian clan's proving to be significantly more popular than her sisters'.

However, it seems the 18-year-old's new project may be taking up a bit more of her attention than her boyfriend Tyga, 25, would like.

The rapper was spotted looking painfully bored as the pair were out to dinner in Calabasas, California on Sunday, as Kylie seemed pretty preoccupied with her cell phone. 

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Distracted: Tyga looked bored while out to dinner in Calabasas, California on Sunday with girlfriend Kylie Jenner, as the star seemed preoccupied with her cell phone 

Distracted: Tyga looked bored while out to dinner in Calabasas, California on Sunday with girlfriend Kylie Jenner, as the star seemed preoccupied with her cell phone 

Ready to go: The rapper busied himself as he sat beside the reality star at dinner, while she tapped away on her phone

Ready to go: The rapper busied himself as he sat beside the reality star at dinner, while she tapped away on her phone

The Keeping Up with the Kardashians star looked beautiful in a textured, black jacket worn over a coordinating shirt.

Kylie's raven tresses were styled straight for the outing, and she showed off a long, dramatic manicure.

She sported bold eyeliner and a taupe lipstick on her famous pout, showing off some of the skills she no doubt planned to demonstrate on her new website and app.

Tyga coordinated in black, donning a sweatshirt and representing his brand with a matching Last Kings cap. 

If you can't beat 'em: Tyga could be seen joining in on the fun and checking his phone, as Kylie continued to play on her iPhone

If you can't beat 'em: Tyga could be seen joining in on the fun and checking his phone, as Kylie continued to play on her iPhone

Falling asleep: Tyga seemed ready to fall asleep at the table as Kylie stared off into her phone, perhaps playing with her new app which quickly shot to number one on iTunes

Falling asleep: Tyga seemed ready to fall asleep at the table as Kylie stared off into her phone, perhaps playing with her new app which quickly shot to number one on iTunes

He accessorized with a large, gold chain necklace and looked distressed as he sat bored beside his girlfriend while she could be seen playing on her phone throughout the meal.

Kylie was spotted fiddling with her iPhone, as well as chatting while her boyfriend seemed almost ready to fall asleep next to her.

The father-of-one even recently complained to the reality star about her tendency to record everything.

'Oh my god. Why do you post everything? Damn. You're killing me!' Tyga shouted in a Snapchat video shared by Kylie, during which the reality star could be heard giggling. 

'You're killing me!' The Last Kings founder recently complained to the star - who frequently posts on her wildly popular Snapchat account as well - about her penchant for filming everything

'You're killing me!' The Last Kings founder recently complained to the star - who frequently posts on her wildly popular Snapchat account as well - about her penchant for filming everything

The Snapchat queen frequently takes to social media to share photographs as well as short videos of everything from her getting ready and singing along to music in the car to laying in bed as she prepares to go to sleep.

While Tyga doesn't seem to appreciate Kylie's social media habits, the same cannot be said for her fans.

According to TMZ, 74% of the staggering 891,340 people who signed up for the Kardashian/Jenner apps in the first 24-hours joined her site over her sisters'.

The star's app quickly rose to number one on iTunes, and an Apptopia analysis shared with CNNMoney has revealed that Kylie's app could make $15 million in its first year. 

Going solo: Kylie was spotted leaving a sushi lunch at Sugar Fish in Calabasas on Thursday afternoon

Going solo: Kylie was spotted leaving a sushi lunch at Sugar Fish in Calabasas on Thursday afternoon

Bright young thing: The teen wore an unusual printed indigo top and shorts by Adidas, leaving her legs on show
Bright young thing: The teen wore an unusual printed indigo top and shorts by Adidas, leaving her legs on show

Bright young thing: The teen wore an unusual printed indigo top and shorts by Adidas, leaving her legs on show

On Thursday, Kylie was spotted leaving lunch in Calabasas while Tyga was talking on his phone as he was seen running errands solo nearby.

The teen showed off her long legs in an indigo top and shorts by Adidas, which were covered in colorful motifs of divers and tennis rackets.

She also wore black and white trainers, her favourite dark lipstick, and styled her locks half down and half in a top knot.

Meanwhile Tyga looked laid-back in a long-sleeved grey and white T-shirt coupled with a pair of baggy green trousers.

He finished off the look with a pair of Yeezy 750 Boost sneakers and a large, gold necklace as he hit an ATM.

His turn: Tyga was later spotted on his phone as he stopped by an ATM in Calabasas on Thursday

His turn: Tyga was later spotted on his phone as he stopped by an ATM in Calabasas on Thursday

Laid-back: The star looked comfortable in a loose-fitting grey T-shirt and baggy, green trousers

Laid-back: The star looked comfortable in a loose-fitting grey T-shirt and baggy, green trousers

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