Download GuestSpy: free anti spy app for Android and iPhone
Free apps that check the phone itself, watch for changes and guide removal.
The Web Scanner checks files in your browser. The apps check the phone itself. Both are free.
Get the apps
Android: [Play Store link]
iPhone: [App Store link]
To check a single file, use the Web Scanner instead.
If you think this phone is monitored, plan from another device if you can. Spyware with accessibility access can see your screen. The safety page explains why.
What the Android app does
A web page can only scan files you give it. The Android app runs on the phone, so it can do more.
Full app list
Finds every installed app, even ones with hidden icons or fake system names.
On-device scans
Checks each app with the same engine and rule IDs as the Web Scanner.
Special-access check
Shows which apps hold accessibility, device admin, notification or usage access.
Change alerts
Warns you about sideloaded installs, new accessibility grants and known spyware servers.
Guided removal
Opens the right Settings screens for your phone, with safety notes at each step.
APK export
Saves any app’s APK to Downloads for the Web Scanner.
Scan history
Keeps dated scans and PDF reports on the device.
The app has a visible icon and shows a notification during scheduled checks. It uses no accessibility service, device admin or notification listener. We ask for nothing we would flag.
What the iPhone app does
iOS does not let one app see other apps. No iPhone app can scan for installed spyware, and ours does not claim to. It checks the settings and profiles that are used to monitor iPhones.
Guided checklist
Walks through each risky setting, with the exact Settings path and what normal looks like.
Saved progress
Lets you work through the checklist over several sittings.
Profile analyzer
Opens a .mobileconfig file and lists every MDM, VPN, certificate, proxy and restriction payload.
On-device record
Keeps checklist answers and profile reports for later or export.
The checklist covers Apple Account devices, two-factor and trusted numbers, and Safety Check. It also covers Find My, Family Sharing, Screen Time, forwarding, mail accounts and VPN and Device Management. Shared albums and notes, location access and jailbreak signs are included too.
The app cannot see your iCloud login history or detect zero-click exploits. For those, the checklist points you to the Mobile Verification Toolkit and groups that can run it.
Before you install on a monitored phone
Some stalkerware reports new installs. Some watches for security apps by name. If you fear the person who installed it, prepare first.
- 1Read the safety page.
- 2Screenshot the app list, accessibility screen and device admin screen.
- 3Change key passwords from a safe device.
- 4Install GuestSpy and run your first scan.
Frequently asked questions
Is the GuestSpy app free?
The Android app, the iPhone app and the Web Scanner are all free. There is no paid tier, trial or account. If you want to give money, stopstalkerware.org lists domestic-abuse charities by region.
Can the iPhone app scan for spyware apps?
No. iOS blocks apps from seeing other apps. The iPhone app checks your settings, accounts and profiles instead.
Will the person who installed spyware notice?
They might. Some stalkerware reports new installs. Read the safety page before you install.
Does the Android app need special access?
No. It uses no accessibility service, device admin or notification listener.
Check your phone now. It's free.
Scan in your browser in about two minutes, or get the app for Android and iPhone.