Why we made stalkerware detection free
Three weeks into ARK's first beta, a woman messaged us. She'd found the stalkerware detector, run it on her phone, and discovered monitoring software her ex had installed months earlier. She'd suspected something was wrong. Now she had proof. That message changed how we thought about the features we charge for.
The thing nobody wants to admit they need
Stalkerware isn't theoretical. In the UK, one in four women experience digital abuse. Globally, the numbers are higher. What surprised us most wasn't the prevalence. It was the silence around it.
When we built ARK, we knew we'd need to detect monitoring apps. But the conversations happened quietly. Parents worried about kids. People worried about partners. Small business owners worried about employee devices. Nobody brought it up in a room with others present.
Here's what struck me: the people who needed this feature most were also the people least likely to have already paid for a security tool. They hadn't planned for this. They didn't have a budget line for digital safety. They just needed to know, quickly, whether their phone had been compromised.
That's when we made the call. Stalkerware detection would be free. Not a trial. Not a preview. Free, for everyone, forever.
Detecting what others ignore
The stalkerware detector works because we run targeted scans for monitoring software signatures. We check app permissions, system processes, and installation patterns that match known surveillance tools. One tap. You get a result. If we find something, the app gives you one-tap remediation links to remove it safely.
Most security tools treat this as a checkbox feature. Ours sits at the front of ARK because it matters first.
We also knew we had to get the false positives right. A family-tracking app your mum installed is different from hidden surveillance. We had to be precise, or the feature would've created more fear than clarity.
What free actually means to us
On the free tier, your scans stay on your device. We don't log them. We don't build profiles. We don't sell data about what we found. That wasn't a marketing decision. It was the only ethical way to run a feature like this.
Someone checking their phone for stalkerware is in a vulnerable moment. They deserve privacy in that moment, not analytics revenue. We built the infrastructure to support that from the start. It cost more than a generic approach. Worth it.
The paid tiers (Shield at £2.99 a month, Fortress at £7.99) exist because we needed a way to sustain the company and fund deeper protection. Dark-web monitoring. Breach checks. Phishing scanners. GDPR automation for people managing their data across services. Those require servers, maintenance, integration with external data sources. They need to be paid for to be reliable.
But stalkerware detection? That stays free.
The features that follow
What's interesting is how people have used the free tier. Some check once, feel reassured, and move on. Others discover we also offer a security credit score in the free version, which breaks down their phone's exposure across permissions, apps, and breach history. They see there's more to know about their device than they thought.
A smaller group moves to Shield to add dark-web monitoring and Wi-Fi analysis. They're already worried. They want to go deeper. And a handful land on Fortress because they're managing employee devices or they take data rights seriously and want GDPR Autopilot to handle subject-access requests across their digital footprint.
The stalkerware detector isn't a loss leader. It's honest. It says: we care about your safety enough to give you this without strings.
What we learned from building it
The real lesson came later. After we'd launched, we watched how people described ARK to friends. They didn't mention the credit score first. They mentioned that we detected monitoring software. That free. That private.
It told us something about what people actually fear. Not the abstract idea of 'cyber risk.' The concrete ones. Someone watching them. Apps they can't see. The feeling that their phone has been turned against them.
So we kept building. Added breach checks to the free tier. Simple permission audit. The paid tiers got the fancy stuff because they needed to be maintained and evolved. But the core question, 'Is my phone being monitored?', has always been free.
I don't regret that choice. I'd do it again.
If you've never thought about stalkerware, that's probably fine. But if you have, or if you know someone who should check, ARK's waiting. What would a digital safety tool look like if it existed to help people, not extract money from their fear?
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