Mobile Security Monitoring for Individuals in the UK
ARK gives your phone a security credit score from 0-100, scanning device vulnerabilities, network exposure, app permissions, and whether your accounts appear in known data breaches. It runs entirely on your device, so your data never leaves your phone.
What ARK Actually Does
ARK is a mobile security credit-score tool, not a dark web monitoring service or antivirus. It works by scanning your iPhone for four key security areas: device security configuration, network exposure risks, app permission settings, and whether your email or password has been found in public data breaches via Have I Been Pwned (HIBP). You get a single 0-100 score that reflects your overall mobile security posture, plus specific guidance on how to improve it. The scan is instant and runs locally on your phone.
Why This Matters More Than Dark Web Monitoring Alone
Dark web monitoring watches for your credentials on illegal marketplaces, but that's only one layer of exposure. Most people are at greater risk from weak device settings, overpermissioned apps, unpatched vulnerabilities, and breaches from services they've used (even if they no longer remember signing up). ARK flags all of these in one place and gives you actionable steps to fix them. If you've been in a breach, you'll know immediately which accounts are affected and what to do next.
One-Tap Remediation Guidance
When ARK identifies a security issue, it doesn't just tell you the problem. It provides one-tap deep-links to fix it directly. Weak passcode. Disabled two-factor authentication. Apps with excessive permissions. All of it gets flagged with a clear path to remediation. This removes the guesswork that stops most people from actually improving their security.
Free and Pro Tiers
ARK's free tier gives you a one-time security scan and breach check. If you want continuous monitoring (so ARK alerts you if new breaches emerge or vulnerabilities are discovered), you can upgrade to the Pro tier, which also includes family device monitoring. This is useful for parents who want to check their children's phones or small business owners managing multiple devices for staff.
Your Data Stays on Your Device
ARK is built for privacy. All scanning happens on your phone. Your security score, scan history, and findings are stored locally. Only breach data lookups use HIBP's API, and those are encrypted. You don't hand your phone's security audit to a third party.
Who Uses ARK
Privacy-conscious individuals aged 25-45, people who've already been caught in data breaches, parents checking family device security, and small business owners who need visibility into multiple phones without managing complex MDM systems all find ARK useful. It's straightforward, on-device, and gives you a clear score to act on.
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Frequently asked questions
Is ARK a VPN or antivirus?
No. ARK is a mobile security credit-score tool. It scans your device for security misconfigurations, app permissions, known vulnerabilities, and breach exposure, then gives you actionable fixes. It doesn't encrypt your traffic or remove malware.
Does ARK monitor the dark web for my credentials?
Not specifically. ARK checks whether your email or password appears in known public data breaches via Have I Been Pwned. Dark web monitoring is narrower and riskier to rely on alone. ARK's broader approach catches more exposure.
Will ARK tell me if I've been in a data breach?
Yes. ARK scans against HIBP's database of hundreds of millions of breached accounts. If your email is found, you'll see which breach it came from and what data was exposed.
Does my data leave my phone?
All scanning runs locally. Only breach lookups use HIBP's API (encrypted). Your security score and scan history stay on your device.
Can I use ARK to monitor my family's phones?
Yes, with the Pro tier. You can monitor multiple family devices and get alerts if their security score drops or new breaches are detected.
Is ARK available on Android?
ARK is currently available on iOS. Visit the official ARK page for the latest platform information.