What is an App Privacy Audit Tool?
An app privacy audit tool shows you which permissions your installed apps request and how exposed your data is. Guard by MRVL does this by displaying a curated demo of 12 common apps, their permission requests, and a privacy risk score for each one, then lets you revoke permissions directly from iOS Settings.
How App Privacy Audits Work
App privacy audit tools educate you about the permissions installed apps request, not by scanning your system (iOS sandboxing prevents that), but by walking through realistic examples. Guard shows a dashboard of 12 frequently used apps, the permissions each would typically access (location, contacts, photos, microphone, calendar), and assigns each a privacy risk score. You then tap any flagged permission to jump straight into iOS Settings and revoke it yourself. This approach respects iOS security while giving you visibility and control.
What Guard Reveals About Your Apps
Guard's Free tier gives you a privacy risk score for each app in the demo set, showing which ones request the most sensitive permissions. The Personal Pro tier adds real-time alerts whenever an app changes its permission requests, a clipboard safety check (detecting when apps try to read what you've copied), detailed tracking behaviour per app, and a data exposure profile that breaks down which types of data each app can access. As of June 2026, these features help privacy-conscious iPhone users understand exactly what access they've granted.
Who Needs This Kind of Audit
Parents managing children's devices benefit from Guard's Family Hub, which monitors permissions across up to six devices with child controls. Professionals handling sensitive client data, remote workers on company devices, and anyone concerned about app surveillance find real-time permission alerts useful. If you've ever wondered whether your photo app really needs access to your location, or which apps read your clipboard, an app privacy audit gives you that clarity without needing technical knowledge.
Guard vs Other Privacy Tools
Guard is not an antivirus, VPN, or microphone/camera surveillance detector (iOS does not expose that telemetry to third-party apps). It's also not a system-level permission scanner that audits every app you own simultaneously. Instead, it educates through a curated demo set of common apps, teaches you what each permission does, and makes it frictionless to revoke access via iOS Settings. If you're looking for real-time permission monitoring and a clearer picture of app data exposure on your device, Guard fills that gap without overpromising what iOS itself allows third-party apps to see.
Why Privacy Risk Scores Matter
A privacy risk score translates permission complexity into one number. An app requesting access to your location, contacts, and clipboard gets a higher risk score than one requesting only photo access. Guard assigns scores to each app in its demo set so you can quickly spot the permission-hungry ones. High scores don't mean an app is malicious, just that it requests sensitive access. You decide whether that access is necessary for the app to function, and you retain full control to revoke it at any time through iOS Settings.
Getting Started with Guard
Download Guard from the iOS App Store and open the Free dashboard. You'll see 12 common apps ranked by privacy risk. Tap any app card to see which permissions it requests and what data each permission unlocks (location, photos, contacts, clipboard, calendar, microphone). If you want to revoke a permission, tap the flag and Guard will deep-link you straight into iOS Settings. Personal Pro adds real-time alerts for permission changes; Family tier adds cross-device monitoring and child controls for added peace of mind.
Check your app permissions in seconds with Guard.
Frequently asked questions
Can Guard scan all the apps I've already installed?
No. iOS sandboxing prevents third-party apps from auditing other apps' real permissions. Guard educates you with a curated demo set of 12 common apps and teaches you how to read permission requests yourself. It then helps you revoke permissions directly in iOS Settings.
Does Guard detect if an app is using my camera or microphone right now?
No. iOS does not give third-party apps access to that telemetry. If you want to know whether an app is actively using your camera or microphone, iOS shows a dot in the status bar. Guard focuses on permission visibility and management instead.
What's the difference between Free and Personal Pro?
Free gives you the dashboard, privacy risk scores, and one-tap revoke for 12 apps. Personal Pro adds real-time alerts when apps change permissions, a clipboard safety check, detailed tracking data per app, and a data exposure profile with a permission chart.
Can I use Guard to monitor my child's phone?
Yes. The Family tier unlocks a Family Hub that lets you monitor and manage permissions across up to six devices with built-in child controls.
Is Guard a VPN or antivirus?
No. Guard focuses solely on app permission visibility and management. It's not a VPN, antivirus, or malware scanner. It educates you about what access you've given to your apps and makes it easy to revoke that access.