Apps that help people track their menstrual cycle are data “gold mines” for advertisers, a new report warns. Advertisers use this highly valuable data for customer profiling, allowing them to tailor marketing campaigns to specific groups of consumers.
The report, published by the University of Cambridge’s Minderoo Centre for Technology and Democracy on Tuesday, June 10, explains that the risks to app users go far beyond just targeted ads. When this data falls into the wrong hands, it can affect users’ job prospects and lead to workplace surveillance, health insurance discrimination, and cyberstalking. It has even been used to limit access to abortion in the U.S., the study warns.
Hundreds of millions of people use period tracking apps. A 2024 study estimated that the number of global downloads for the three most popular apps exceeds 250 million. These platforms are run by companies that profit from the mountain of user data they collect—particularly pregnancy data. According to the University of Cambridge report, data on pregnancy is 200 times more valuable to advertisers than data on age, gender, or location.
Investigations conducted in 2019 and 2020 by Privacy International, a U.K.-based nonprofit, found that multiple apps directly shared personal data with advertisers. A follow-up study published on May 28 found that while major menstrual app companies have improved their approach to data privacy, they still collect device data from users in the U.K. and U.S. with “no meaningful consent.”
Stefanie Felsberger, sociologist and lead author of the University of Cambridge report, interviewed period tracking app users in Austria to understand why they use them and what they track. She was surprised to find that many people she spoke with didn’t think of their menstrual data as personal or intimate and were unaware of its incredible commercial value.
“Period tracking apps collect a vast number of different kinds of information,” Felsberger told Gizmodo. “They don’t just collect information about the menstrual cycle as such, they also collect information about people’s reproductive choices, sexual activities, their wellbeing, health, [and] medication intake,” she said. These apps also gather background information about users, including their age, gender, IP addresses, app behavior, and device information, she added.
“We have limited and also changing knowledge about how and where this data has been shared and who has access to it,” Felsberger said.
In the U.S., menstrual tracking apps are regulated as general wellness devices, so the data they collect don’t get any special legal protections, she explained. Advertisers aren’t the only ones who can exploit this lack of safeguarding to access menstrual data. Government officials can also get their hands on this information and use it to restrict abortion access.
Felsberger’s report highlights two such cases, though in these instances, menstrual data did not come specifically from period tracking apps. Still, they illustrate how governments can use this information to limit access to abortion at both state and federal levels.
In 2019, Missouri’s state health department used menstrual tracking data to investigate failed abortions. They also tracked patients’ medical ID numbers, the gestational age of fetuses, and the dates of medical procedures. As a result of this investigation, the state attempted to withhold the license of St. Louis’ Planned Parenthood clinic—the only abortion provider in the state at that time. This led to a year-long legal battle that ultimately restored the clinic’s license.
During President Donald Trump’s first administration, the federal Office of Refugee Resettlement tracked the menstrual cycles of unaccompanied minors seeking asylum in the U.S. They aimed to prevent these minors from obtaining abortions even in cases of rape. A freedom of information request by MSNBC uncovered a spreadsheet containing dates of the minors’ menstrual cycles, lengths of their pregnancies, whether the sex had been consensual, and whether they had requested an abortion.
These cases underscore the dangers of failing to protect users’ period tracking data, especially in a post-Dobbs world. Since Roe v. Wade was overturned in 2022, abortion access has become deeply fragmented across the U.S. This procedure is currently banned in 13 states and access is significantly limited in an additional 11 states.
In the European Union and the U.K., period tracking apps have more legal protections. “But they are not often implemented very well,” Felsberger said. Their privacy policies tend to be “very vague,” which makes it difficult for users to understand who can access their data.
“App developers and companies have a very large responsibility, because they do present themselves as providing people with this opportunity to learn about their menstrual cycles,” she said. “I think they should also do their utmost to keep people’s data safe and be transparent about the way that they use data.” There is also a need for stronger federal regulations, especially in the U.S., she added.
Given that these apps offer valuable health insights, it’s unrealistic to expect users to stop using them entirely. But Felsberger recommends switching to non-commercial period tracking apps that provide more data privacy. These platforms are run by non-profit organizations or research institutions that won’t share your information with third parties.
As the landscape of reproductive health becomes increasingly treacherous in the U.S., understanding how third parties may exploit your menstrual data has never been more important.
“Menstrual tracking data is being used to control people’s reproductive lives,” Felsberger said in a University statement. “It should not be left in the hands of private companies.”
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![Europe got its own TBPN-style live show, and everyone’s angling for a guest spot | TechCrunch
The European answer to TBPN is here and ready to go live five days a week, starting June 27.
Luke Knight and Ronan Chambers first launched the London-based European Technology Network (ETN) last October, breaking down tech trends and news during a two-day-a-week live stream. Right now, the show is live-streamed on X and YouTube and has garnered more than 5 million views.
On Monday, the network announced a .6 million seed round from top players in the media ecosystem, including Powerhouse Capital, Axel Springer SE (which owns Business Insider and Politico), the popular media publication LadBible, and angel investors from OpenAI and DeepMind. With this fresh capital, the network is announcing its largest expansion yet.
It’s now moving into a big studio in Kings Cross (where all the hot London AI startups are situated), expanding the team (right now of just eight), launching a newsletter, and is, starting today, moving into a five-day-a-week live show schedule, which will soon see Knight and Chambers interview the likes of George Robson (a partner at Sequoia) and Rishi Sunak (former UK Prime Minister and senior advisor to Anthropic and Microsoft).
Speaking to TechCrunch, Knight and Chambers said ETN has already become a hot stop on the press tour for European startups — they’ve spoken to the founder of Synthesia, the CFO of Legora, the founder of Granola, and Kanishka Narayan, the UK’s first AI Minister. They’ve even had American investors stop by the show when they are in town, including one from Andreessen Horowitz.
“ETN was born out of a gaping hole in the industry,” Chambers told TechCrunch. “It’s centered around pace.” He said the current media ecosystem in the UK cannot keep up with how fast the tech scene is moving. For example, so far this year, London startups have raised .7 billion according to Dealroom. Six companies have raised more than 0 million: Wayve, Superintelligence, ElevenLabs, Recursive, Ineffable Intelligence, and Isomorphic Labs, the latter three of which were founded by DeepMind alumni.
“These are things that have never happened in Europe before,” Chambers continued, referring to the speed at which capital is flowing through the ecosystem. As the show became more popular, Chambers said they were getting around 70 pitches a week from guests looking to come on the show. They would try and cram 12 interviews into two hours, twice a week, but eventually it got too much. “We needed an outlet that could move at the pace of that,” he said of both the interest in the show and how fast Europe’s tech ecosystem is moving, “which is the reason we’re going from two days a week to five days a week.”
The five-day format will look quite similar to the two-day format. There will be a live show from 12 p.m. UK time to 3 p.m., breaking down trending stories, and then for two hours, they will have guests on the show talking about whatever they want. Chambers said they also want to start hosting debates, roundtables, and a Shark Tank-style pitching session on the show.
“We want to make it as useful as we can for the ecosystem,” Chambers said. “There needs to be more discourse around AI in Europe. There needs to be more discourse around venture capital and cash flowing into the ecosystem. There needs to be more discourse around the amazing things that are happening in the tech ecosystem, and our role is to be the stage in which people can shout about all the amazing things they’re doing.”
The show makes its money from ad dollars, like most media publications, and big-name sponsors already include prediction market Polymarket, blockchain company Base, and the AI audio darling ElevenLabs.
When asked about the influence TBPN has had on them, Knight and Chambers said they indeed do look at John Coogan and Jordi Hays, founders of TBPN (which recently sold to OpenAI for what some say was a nine-figure sum), as pioneers of this new tech media ecosystem. The show became a place for tech guests to appear and chat with friendly faces, announcing new product releases, hires, or funding news. “My thinking was, if we can have an ITV and a BBC, why wouldn’t we have a regional version of this?” Chambers continued.
Europe is a big place, though, with more than 40 different countries and over 200 languages spoken (24 of which are recognized by the European Union). Chambers said that although ETN will report from London, he and Knight are making an effort to bring on guests from across the continent. Aside from bringing guests into the studio, they also travel to the hottest tech conferences around Europe. For example, they’ve broadcast from the Panathenaea Conference in Athens and from inside the Louvre in Paris for the RAISE AI Summit.
“You have all these different cultures, these different minds coming together and creating different products,” Chambers said. “You get a taste of what makes [Europe] a superpower.”
With all this, they said they would never turn an American founder away should they want to come on the show. “It’s a European technology network, but we think there’s massive [global] opportunities,” Chambers said. Knight added to that, noting how often conversations pit the European tech ecosystem against that of the U.S.
“We are globally optimistic,” Knight said. “We are pushing global prosperity from Europe. Wherever you want to go and build your company, wherever is the best place to go and build that company, go and do that, and we will shout for you to go and do that.”
He and Chambers also don’t necessarily see themselves as journalists; rather, they consider themselves tech insiders curious about what is going on and why. They also don’t see themselves as replacing traditional media and instead intend to work in tandem with those publications. “We rely on traditional media,” Chambers said, adding that is how they find much of the news that they to talk about on ETN.
Overall, the duo hopes to help document the stories coming from the new wave of European success, from ElevenLabs in London to Lovable in Stockholm, to help the upcoming generation understand that technology is one way to drive a nation forward.
Discussing the impact of European success stories, Chambers said, “It riles up the next generation to the point where it’s no longer cool to finish university and go into banking or consulting. People want to leave university and go straight into building a startup, and I think that’s an amazing thing.”
When you purchase through links in our articles, we may earn a small commission. This doesn’t affect our editorial independence.#Europe #TBPNstyle #live #show #everyones #angling #guest #spot #TechCrunchEurope,London,UK](https://i3.wp.com/techcrunch.com/wp-content/uploads/2026/07/ETN.jpg?resize=1200%2C800&ssl=1 "Europe got its own TBPN-style live show, and everyone’s angling for a guest spot | TechCrunch
The European answer to TBPN is here and ready to go live five days a week, starting June 27.
Luke Knight and Ronan Chambers first launched the London-based European Technology Network (ETN) last October, breaking down tech trends and news during a two-day-a-week live stream. Right now, the show is live-streamed on X and YouTube and has garnered more than 5 million views.
On Monday, the network announced a .6 million seed round from top players in the media ecosystem, including Powerhouse Capital, Axel Springer SE (which owns Business Insider and Politico), the popular media publication LadBible, and angel investors from OpenAI and DeepMind. With this fresh capital, the network is announcing its largest expansion yet.
It’s now moving into a big studio in Kings Cross (where all the hot London AI startups are situated), expanding the team (right now of just eight), launching a newsletter, and is, starting today, moving into a five-day-a-week live show schedule, which will soon see Knight and Chambers interview the likes of George Robson (a partner at Sequoia) and Rishi Sunak (former UK Prime Minister and senior advisor to Anthropic and Microsoft).
Speaking to TechCrunch, Knight and Chambers said ETN has already become a hot stop on the press tour for European startups — they’ve spoken to the founder of Synthesia, the CFO of Legora, the founder of Granola, and Kanishka Narayan, the UK’s first AI Minister. They’ve even had American investors stop by the show when they are in town, including one from Andreessen Horowitz.
“ETN was born out of a gaping hole in the industry,” Chambers told TechCrunch. “It’s centered around pace.” He said the current media ecosystem in the UK cannot keep up with how fast the tech scene is moving. For example, so far this year, London startups have raised .7 billion according to Dealroom. Six companies have raised more than 0 million: Wayve, Superintelligence, ElevenLabs, Recursive, Ineffable Intelligence, and Isomorphic Labs, the latter three of which were founded by DeepMind alumni.
“These are things that have never happened in Europe before,” Chambers continued, referring to the speed at which capital is flowing through the ecosystem. As the show became more popular, Chambers said they were getting around 70 pitches a week from guests looking to come on the show. They would try and cram 12 interviews into two hours, twice a week, but eventually it got too much. “We needed an outlet that could move at the pace of that,” he said of both the interest in the show and how fast Europe’s tech ecosystem is moving, “which is the reason we’re going from two days a week to five days a week.”
The five-day format will look quite similar to the two-day format. There will be a live show from 12 p.m. UK time to 3 p.m., breaking down trending stories, and then for two hours, they will have guests on the show talking about whatever they want. Chambers said they also want to start hosting debates, roundtables, and a Shark Tank-style pitching session on the show.
“We want to make it as useful as we can for the ecosystem,” Chambers said. “There needs to be more discourse around AI in Europe. There needs to be more discourse around venture capital and cash flowing into the ecosystem. There needs to be more discourse around the amazing things that are happening in the tech ecosystem, and our role is to be the stage in which people can shout about all the amazing things they’re doing.”
The show makes its money from ad dollars, like most media publications, and big-name sponsors already include prediction market Polymarket, blockchain company Base, and the AI audio darling ElevenLabs.
When asked about the influence TBPN has had on them, Knight and Chambers said they indeed do look at John Coogan and Jordi Hays, founders of TBPN (which recently sold to OpenAI for what some say was a nine-figure sum), as pioneers of this new tech media ecosystem. The show became a place for tech guests to appear and chat with friendly faces, announcing new product releases, hires, or funding news. “My thinking was, if we can have an ITV and a BBC, why wouldn’t we have a regional version of this?” Chambers continued.
Europe is a big place, though, with more than 40 different countries and over 200 languages spoken (24 of which are recognized by the European Union). Chambers said that although ETN will report from London, he and Knight are making an effort to bring on guests from across the continent. Aside from bringing guests into the studio, they also travel to the hottest tech conferences around Europe. For example, they’ve broadcast from the Panathenaea Conference in Athens and from inside the Louvre in Paris for the RAISE AI Summit.
“You have all these different cultures, these different minds coming together and creating different products,” Chambers said. “You get a taste of what makes [Europe] a superpower.”
With all this, they said they would never turn an American founder away should they want to come on the show. “It’s a European technology network, but we think there’s massive [global] opportunities,” Chambers said. Knight added to that, noting how often conversations pit the European tech ecosystem against that of the U.S.
“We are globally optimistic,” Knight said. “We are pushing global prosperity from Europe. Wherever you want to go and build your company, wherever is the best place to go and build that company, go and do that, and we will shout for you to go and do that.”
He and Chambers also don’t necessarily see themselves as journalists; rather, they consider themselves tech insiders curious about what is going on and why. They also don’t see themselves as replacing traditional media and instead intend to work in tandem with those publications. “We rely on traditional media,” Chambers said, adding that is how they find much of the news that they to talk about on ETN.
Overall, the duo hopes to help document the stories coming from the new wave of European success, from ElevenLabs in London to Lovable in Stockholm, to help the upcoming generation understand that technology is one way to drive a nation forward.
Discussing the impact of European success stories, Chambers said, “It riles up the next generation to the point where it’s no longer cool to finish university and go into banking or consulting. People want to leave university and go straight into building a startup, and I think that’s an amazing thing.”
When you purchase through links in our articles, we may earn a small commission. This doesn’t affect our editorial independence.#Europe #TBPNstyle #live #show #everyones #angling #guest #spot #TechCrunchEurope,London,UK")
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