The Apprentice 2015 runner-up Vana has lashed out at the show, accusing bosses of "psychological torture" for isolating contestants.
While they're taking part in Lord Alan Sugar's business competition, participants have to live together in lavish houses.
But Vana reckons bosses are too strict with them, claiming they impose living conditions similar to Big Brother - with strict rules and zero contact with outsiders.
"They just throw you into a house and tell you that you have no phone, no internet and you’ll have no contact with the outside world," Vana explained in a chat with the Daily Star.
"You can only talk to your family once a week for 10 minutes and that’s monitored. And we weren’t allowed to go to Boots to grab something. We had to be monitored and guided there."
Vana, who finished as runner-up to Joseph Valente in last year's series, continued: "I think that element of cabin fever and psychological torture is not necessary for a business competition.
"I don’t believe that you need to isolate people. I think you can gauge people’s business skills without putting them in that environment.
"I wish there was a bit more honesty about what goes on behind the scenes. It’s not something that’s ever made clear to the viewer."
Vana recently launched a crowd funding campaign for her dating app DatePlay, which matches its users based on how they play games. It is already believed to be worth £2million.