When Monitoring Goes Further Than Filtering
Bark Technologies scanned 11 billion messages sent to or from 7.5 million children in the United States in 2025. Its free school program operates across more than 3,700 districts, reaching roughly one in ten kids nationwide. That scale alone signals something significant has shifted in how American parents are choosing to handle their children’s digital lives – not by blocking access, but by watching what gets through.
The broader parental control software market, which spans dozens of apps, was valued at an estimated $1.57 billion in 2025 and is projected to nearly triple by 2034. The next wave of growth is already being marketed around AI, with companies positioning their products as direct responses to chatbot risks and online predators. Whether that expansion is protection or overreach depends heavily on whom you ask – and what happened to them.
The Fears Driving a Billion-Dollar Market
The University of Michigan’s 2025 National Poll on Children’s Health found that parents’ top three concerns were social media, screen time, and internet safety. Nearly half of American teenagers report being bullied or harassed online, according to Pew Research Center data. Those numbers form the baseline of parental anxiety, but the more extreme dangers are what push families toward surveillance-grade tools.
Online drug dealers are selling counterfeit pills laced with fentanyl. In the first half of 2025 alone, the National Center for Missing and Exploited Children received more than 23,000 reports of financial sextortion – cases in which a predator posing as a peer obtains a sexual image from a child and demands payment to suppress it. OpenAI is now facing lawsuits alleging its chatbot coached children toward suicide. Against that backdrop, apps that read a child’s texts and flag dangerous content have found a ready market.
Most parents start with conversation. Pew surveys show more than nine in ten say they have talked with their teens about what’s appropriate to share online and how to treat other people. Many also rely on built-in phone tools: Apple’s Screen Time and Google’s Family Link allow parents to cap usage, approve or block apps, filter web content, and track devices. Life360, the largest location-sharing app, now counts nearly 98 million monthly users. But for a growing segment of parents, those tools feel insufficient.
What Content-Monitoring Apps Actually Do
Unlike simple screen-time limiters or GPS trackers, content-monitoring apps scan texts, photos, emails, and chats in real time, triggering alerts whenever an algorithm flags material it classifies as dangerous. Bark, the current category leader, is designed to surface only content that trips its filters. Competitors like FlashGet Kids go further, offering features including screen mirroring and direct camera access – tools that move well beyond alert-based monitoring into continuous observation.
These apps have stopped real harm. Documented cases include intercepted predators, averted school shootings, and prevented suicide attempts. That record of intervention is central to how they’re marketed, and it’s not fabricated – the interventions happened. The question researchers are now asking is what else happens alongside them.
The Researcher Who Lived Both Sides
Pam Wisniewski came to this question through experience rather than theory. At 14, she left an abusive home – she’d been isolated in a fifth-wheel trailer at the end of a seven-mile dirt road – and moved in with her older sister. She taught herself to type using AOL Instant Messenger and found online the support and community she’d been denied at home. She also learned the risks firsthand: she once mailed her home address to a stranger in New Mexico who had offered to send her a personalized mug. Years later, she found a news story reporting that man had killed someone.
Wisniewski is now a principal research scientist at the International Computer Science Institute, a nonprofit affiliated with the University of California, Berkeley. She has spent more than a decade studying what safety should actually look like for families navigating an evolving technology environment – and specifically how to pursue it without destroying trust between parents and children. “I really see the internet as this double-edged sword,” she says. Her own adolescence sits at the center of that framing: the internet gave her something she needed and exposed her to something genuinely dangerous at the same time.
To assess how digital surveillance affects young people at scale, Wisniewski’s work drew on more than 600,000 reviews of leading monitoring apps, along with direct conversations with children, parents, and adults who were monitored as minors. The picture that emerges is not clean. Some children described feeling protected. Others reported false alarms that triggered punishment for content the algorithm misread, secrets disclosed to parents before they were ready, eroded trust, and anxiety that persisted long after the monitoring stopped.
That pattern – surveillance producing harm alongside protection – is not unique to parental apps. It maps onto broader concerns about algorithmic classification systems making high-stakes decisions with incomplete context. A filter trained to detect signs of self-harm or predatory contact cannot reliably distinguish between a teenager in genuine crisis and one venting frustration to a friend, processing a novel for school, or asking questions that sound alarming without any underlying danger. The cost of that imprecision falls on the child.
AI as the Next Selling Point
Companies in this space are already moving to frame their next product cycles around artificial intelligence specifically. The pitch maps onto current parental anxiety: as AI-powered chatbots become more capable and more accessible to minors, monitoring tools that themselves use AI to detect threats feel like a natural counterweight. Whether that framing translates into meaningfully better detection – fewer false positives, more accurate threat assessment, less collateral damage to adolescent privacy – or simply better marketing is a distinction the industry has not yet had to answer clearly.
Bark’s free school program, embedded in districts covering roughly 10 percent of American students, gives the company a structural foothold that most consumer-facing apps never achieve. Schools that adopt it are effectively normalizing continuous message scanning as a background condition of adolescence. For children growing up with that as the default, the question of what surveillance does to developing a sense of autonomy – and to the trust between teenagers and the adults who care for them – may matter as much as any individual alert the algorithm generates or misses.
Wisniewski’s career started because a 14-year-old found both danger and lifeline in the same place online. The apps now scanning billions of messages are trying to preserve one side of that equation while eliminating the other. So far, the evidence suggests the division is harder to make than the marketing implies.
