If your battery drains faster than usual, data disappears without explanation, or your device feels warm when idle — something unwanted may be running in the background. Tracking apps and spyware are more common than most people think. The good news: there are free apps that detect and remove them.
🔍 Warning Signs
Your Phone May Be Tracked If…
Battery drains fast · Unusual data usage · Phone feels hot · Apps you never installed appear · Strange noise on calls
1. Malwarebytes
One of the most trusted security apps worldwide. The free version scans for spyware, stalkerware, and any app with unauthorised access to your location or contacts. Completes a full scan in under 2 minutes. Available on Android and iPhone.
2. Google Play Protect
Already on every Android phone. Open Play Store → tap profile icon → Play Protect → Run Scan. It checks all installed apps against Google’s threat database and flags anything accessing your GPS without reason.
3. Avast Mobile Security
The free plan includes a Privacy Advisor showing exactly which apps have access to your location, camera, and microphone. If an unknown app is accessing your GPS — that is your red flag. Avast helps revoke permissions directly.
4. Certo Mobile Security
Built specifically to detect stalkerware — apps installed by someone else to track you without consent. It looks for hidden tracking apps disguised as system tools. Free to download and scan.
5. Privacy Dashboard (Android 12+)
No download needed. Go to Settings → Privacy → Privacy Dashboard. See a full timeline of every app that accessed your location, camera, or microphone in the last 24 hours.
6. Lookout Security
Scans for spyware and monitors apps for suspicious behaviour. Free version covers malware scanning, breach alerts, and safe browsing — more than enough for most users.
7. iVerify (iPhone)
iPhone spyware risks are lower due to iOS sandboxing, but iVerify checks for device compromise and walks you through your iPhone’s security settings step by step.
FAQs
Can someone track my phone without me knowing?
Yes — through spyware installed with physical access, through your Google/Apple account, or through malware links. The apps above detect most of these.
Does *#21# reveal tracking?
It shows call forwarding settings only — not spyware. It will not find tracking apps.
Are these apps safe?
Stick to established names: Malwarebytes, Avast, Lookout, Google. Avoid random “anti-spy” apps from unknown developers — some of them ARE the spyware.