Billionaire In-N-Out heiress speaks out about future price hikes amid bitter controversy over soaring fast food costs - and reveals fascinating reason why she REFUSES to allow mobile ordering

With fast food prices increasing around the country, the president of In-N-Out Burger has insisted their prices won't go up any time soon.

Lynsi Snyder, who became the president of In-N-Out Burger at just 27, spoke out after the minimum wage for fast food workers was hiked to $20 per hour in California.

McDonald's, Chipotle and Starbucks have warned they will pass on the extra costs - while staff for Pizza Hut have already lost their jobs after bosses said they could not afford to pay it.

The now 41-year-old burger heiress says she fought hard to keep price rises for customers to a minimum after the new rate kicked in on April 1. 

'I was sitting in meetings going toe-to-toe saying we can't raise the prices that much. We can't,' she explained to NBC's Savannah Sellers.

Lynsi Snyder, who became the president of In-N-Out Burger at just 27 years old, has spoken out against the price hikes affecting fast food outlets

Lynsi is the last remaining blood relative of Esther and Harry Snyder who started the famous fast-food chain in 1948

'Because I felt such an obligation to look out for our customer. When everyone else was taking these jumps, we weren't.'

According to the New York Post, burgers at In-N-Out are increasing 25 cents with sodas going up a nickel. 

The controversial wage hike - $4 more than for any other job - was introduced by California Governer Gavin Newsomat chains with more than 60 locations in the US. 

Meanwhile, the burger heiress also spoke about erring on the side of caution when it comes to embracing technology in their restaurants, not wanting to impact the experience for the customer experience. 

'No to mobile ordering because that impacts the service experience,' she said.

'There are a lot of things that could be cheaper, easier, but that's not the system we go through,' she said.

Her comments on mobile ordering come after a month after Chick-Fil-A opened a new 'grab and go' restaurant in New York City.  There are no cashiers or tables and chairs - diners must pre-order on the phone for pick-up and there is nowhere inside to eat.

Lynsi, who is the last remaining blood relative of Esther and Harry Snyder - who started the famous fast-food chain in 1948 - has staunchly railed against any nepo baby criticisms about her place in the multi-billion dollar company.

The burger heiress revealed she started her career at In-N-Out working in a restaurant just like any other employee - even waiting for two hours just to get an interview in Redding, California. 

'I think that there is a stigma that can come with being the owner's kid,' Lynsi admitted in an interview that aired both on NBC's Morning News Now and Today.

'And just wanting to be respected, I was doing it the right way and not having special treatment,' she said.

Since its founding in California by Snyder's grandparents, Harry (right) and Esther Snyder (left), which started as a small drive-thru burger stand, it has gradually expanded to one of the most lucrative food chains with more than 400 locations across the country

The stress of running the business and the sudden loss of his brother pushed Guy back into alcohol and drug use

Behind the rise of In-N-Out burger are struggles with drug and alcohol, a history of child abuse and shocking deaths of family members. Pictured from left to right: Guy, Esther, and Rich Snyder 

Lynsi became one of the youngest billionaires with a $4.2 billion net, after taking over the company in 2010 and inheriting full control in 2017.

She recalled when she first became president of In-N-Out, admitting it took awhile to become confident in the role.

'In the earlier days, I actually wore pant suits, and I did that because I felt like I was supposed to,' Lynsi admitted.

'And then I finally just was confident in who I am and who I'm not,' she explained. 'You are going to get judged either way. So you might as well be judged for who you are.'

The burger heiress also spoke about erring on the side of caution when it comes to embracing technology in their restaurants, not wanting to impact the experience for the customer experience. 

'No to mobile ordering because that impacts the service experience,' she said thoughtfully.

'There are a lot of things that could be cheaper, easier, but that's not the system we go through,' she said.

In-N-Out Burger was founded in California by Lynsi's grandparents, Harry and Esther Snyder, in 1948. 

The now famous chain started as a small drive-thru burger stand, it has gradually expanded to one of the most lucrative food chains with more than 400 locations across the country. 

But the rise of In-N-Out Burger is marred with tragedy, including family struggles with drug and alcohol addiction, a history of child abuse and shocking deaths of family members. 

Lynsi delved into the iconic burger chain's history - and the devastation that surrounds it - in her book: The Ins-N-Outs of In-N-Out Burger.

By the time her grandfather Harry died in 1976, In-N-Out had expanded to 18 locations in Southern California. His youngest son, Rich Snyder, took over the business.

According to Lynsi, Harry struggled with the responsibility of fatherhood after suffering abuse as a child and went on to abuse his own two children.

Lynsi's own father Guy suffered a tragic accident when he was 26, after a friend's motorcycle landed on top of him and crushed his arms having flown over a cliff during a race in the desert.

This led to his overuse of prescription drugs that helped ease the pain. He was prescribed Vicodin and continued using a variety of opiates before and after Lynsi was born. 

Despite the increase of the minimum wage for workers in California increasing in menu price hikes in other fast food chains, Lynsi says she fought hard to keep price increases at a minimum

Lynsi says the expansion of In-N-out has been slow but steady - but doesn't plan to open locations all over America

His brother Rich, who was at the helm of the business during that time, struggled with drug problems too, including occasional cocaine use and an addiction to diet pills.

Rich passed away while traveling home after the opening of In-N-Out's 93rd location in Fresno, when his 10-passenger plane crashed with no survivors. 

The stress of running the business and the sudden loss of his brother pushed Guy back into alcohol and drug use. Guy died of an accidental overdose of hydrocodone when he was 48. Snyder was 17 at that time, not even graduated from high school. 

After becoming president of In-N-Out in 2010, and taking full control of the company in 2017, Lynsi says the expansion has been slow but steady - but doesn't plan to open locations all over America.

'I don't see us stretched across the whole U.S. I don't see us in every state. Take Texas - draw a line up and just stick to the left. That's in my lifetime,' she explained.

'I like that we're sought after when someone's coming into town,' she shared. 'I like that we're unique. That we're not on every corner. You put us in every state, and it takes away some of its luster.'