Cuban uses Cisco routers and management software to control his children's phone use and see what apps they are using. He even has the ability to shut off use entirely. He also has a policy for Netflix: one hour spent reading means two hours earned to watch Netflix. His daughter Alexis, 16, and son Jake, 9, are not too fond of his watchful eye over their time spent texting friends or playing video games. Cuban makes Alexis turn off her phone at 10 p.m. every night, and makes Jake do math problems before hopping online to play Minecraft. That's the downside of having a geeky dad, you know. I can figure all this stuff out, Cuban said. I try to stay one step ahead, and it's good for me, too, because it keeps me abreast of all the new apps and all the new technology.Ohanian told CNBC last year that although he looks forward to spending quality time with his daughter playing video games down the road, he and Williams want her to be bored for now. It's really important that she gets time to just be with her thoughts and be with her blocks and be with her toys, so we'll be regulating it pretty heavily, he told CNBC. Ohanian is just one of a handful of Silicon Valley tech executives who plan to raise their children away from the devices, apps, and social media platforms they help develop.Teigen said her 3-year-old daughter Luna often begs for her smartphone when she wants to play with a specific app. Teigen then tries to match that excitement of the screaming and begging while she thinks of something else to do, like an art project, a book, or stickers, [then] they forget they even wanted it in the first place. Teigen said she likes to download learning activity apps for both Luna and 1-year-old son Miles. When the couple travels, however, they tend to be more lax on screen time. There are certain situations, like when you're on a plane or in a restaurant, where goddammit, it's going to help those surrounding us, Teigen said in an August interview.We often set a time after which there is no screen time, and in their case that helps them get to sleep at a reasonable hour, Gates told the Mirror in 2017. Gates also said his kids would often complain about how other children were getting phones before them. His youngest, daughter Phoebe, turned 17 this year. Gates said he likes to stay on top of his children's phone use, even putting a ban on phones at the dinner table, but never went as far as keeping track of their Facebook passwords. After his daughter started developing an unhealthy attachment to a video game, the couple started implementing stricter screen time limits. You're always looking at how it can be used in a great way — homework and staying in touch with friends — and also where it has gotten to excess, Gates told the Mirror.Zuckerberg and wife Priscilla Chan do, however, allow their kids to keep in touch with their grandparents using Facebook's video chat service Portal. I let my kids use that to communicate with my parents, so they can stay in touch with their grandparents easily, [and] their aunts who live across the country, he said in October. In an interview on Fox News' The Daily Briefing, Zuckerberg cited a study saying that some screen time for children can actually be healthy when used to communicate in moderation.In 2014, Michelle Obama said she tries to limit her daughters' screen time, according to a New York Times article, but she said she is not always successful since she has to remain constantly connected herself. In 2015, Obama, when announcing his Connect Home initiative, said, there's nothing wrong with every once in a while putting the technology down and actually having a conversation. When Sasha and Malia, now 18 and 21, were living in the White House, they had limited television and screen time — none during the week unless it [was] school-related, according to Michelle Obama.I think, especially for kids in their minds — and they're so fragile and so young — that there has to be rules of maybe not sleeping with the phone right next to you, Kardashian West said at BeautyCon in 2018. Kardashian West may seem like she is glued to her phone herself (she makes over six figures per Instagram post), but she makes sure to abide by the same screen-time rules she gives her kids: no phone at bedtime, breakfast, or dinner. I want my kids to see the separation and feel the difference, and know that there's a time and place for that. I'm really cautious when I'm at home, with phones, and I'm super present, she said at a conference last year. It's so beyond what we understand, Jolie said about herself and ex-husband Brad Pitt in 2014. We wouldn't even know what to look for. Both Jolie and Pitt are notoriously absent from Instagram, Twitter, and Facebook, and plan to be seemingly for good. That's why the former couple decided to hire a a cybersecurity team to monitor the internet and social media content that their children … encounter, according to People. Jolie's six children range in age from 18 to 11.David Beckham said at the Kids' Choice Sports awards in 2014 that the couple allows no more than an hour. I know that sounds pretty harsh, but I want my boys to be outside playing. Seeing as Beckham is a former pro athlete himself, it makes sense why he encourages his four children, Brooklyn, Romeo, Cruz, and Harper, to get outside and play as much as possible. It's so important to me that they're involved in sports — for discipline and health, said Beckham, according to People Magazine. The London-based family is close-knit, all with splashy social-media presences.Klum and her children travel frequently, and sometimes she will get concerned looks from other passengers on planes when they see four children, ages 10 to 15, climb aboard. Normally, there's a certain amount of time they can play, but when we're on the airplane, the sky is the limit. By the time we land, they have square eyeballs, Klum told People in 2018. Klum's eldest daughter, Leni, who has private social media accounts just for friends, shows her mom what photos she wants to post on Instagram before she does it. They're all getting sexier and sexier, and I feel like there's a time and place and a certain age group when you can do that for yourself, so sometimes she shows me photos and I'm like, 'Eh, maybe not that one, show me other photos,' Klum said. Even though it's just her friends, you never know who they could send it to.A source told the magazine in 2017 that the royals, who both grew up without trendy tech gadgets, prefer their children, George, 6, Charlotte, 4, and Louis, 1, play outdoors and use their imaginations. Instead of spending collective family time staring at a screen, the royal couple and their children have been seen enjoying gardening and petting zoos, even while traveling abroad.The CEO's five children also don't spend a lot of time on the platform she heads, often only allowing them access to the YouTube Kids version, according to an interview Wojcicki gave earlier this month. When it comes to overseeing screen time, Wojcicki is more lenient. Instead of keeping a close watch over each minute spent eyeing a screen, she said she lets her kids create their own self-control methods. People need to learn when it is a time [to be] focused in the conversation, and when it is OK to go and watch videos or do other activities on the internet, she told the Guardian.In an interview with the Financial Times last year, Spiegel said he and Kerr limit 8-year-old Flynn's screen time to 1.5 hours a week. Flynn is Spiegel's stepson from Kerr's previous marriage to Orlando Bloom. The couple welcomed daughter Hart Spiegel in 2018. Growing up, Spiegel was not allowed to watch TV. But that doesn't mean his kids won't have any time with technology. He said he thought his limited access to screens as a kid was valuable because [he] spent a lot of time just building stuff and reading or whatever — a lesson he hopes to pass on.[...] Sunday Funday, they work towards that because they don't get to use their iPads during the week, Lopez said in an interview in 2015. Or play video games or anything because it's school time. And they have to be good in school and then they get Sunday Funday. It's something I made up so they could work towards it and behave. Lopez said her kids always want to play with their smartphones, but she tries to regulate it — until Sunday that is, when she hands off the devices and takes a well-deserved nap. Lopez's 11-year-old twins, Emme and Max, also make frequent appearances on their mom's YouTube channel and Instagram account.