Micro Guard™ is a microphone blocker & anti-spy app that helps prevent apps and spyware from listening through your Android device’s microphone.
Enable microphone protection with one tap and decide exactly which apps are allowed to use your mic. As a powerful mic blocker and microphone disabler, Micro Guard helps you turn off the microphone (mic off) whenever you don’t need it – so you stay in control of your privacy.

When protection is active, Micro Guard blocks unwanted microphone access, logs every access attempt and alerts you to suspicious behavior.

Free microphone protection
• 24/7 microphone blocker / mic lock: lock the mic when you are not using it
• Microphone access control: block unknown apps and allow only trusted apps via a whitelist
• One-tap microphone disabler: quickly disable microphone access and re-enable it when needed
• Deep Detective™ Lite: smart engine that monitors microphone access and helps detect unusual behavior
• Logbook & alerts: detailed log of mic access attempts + notifications if something tries to listen in the background
• Microphone permission list: see which installed apps have microphone permission
• Passcode protection: secure the app so no one can change your protection settings
• Home screen widget & quick toggle: enable or disable microphone blocking with one tap
• Modern UI with dark mode

Deep Detective™ anti-spyware scanner (PRO + subscription)
Upgrade to Micro Guard PRO and subscribe to unlock Deep Detective™ Live – a real-time anti-spyware scanner designed to help detect stalkerware, spyware and other threats that try to access your microphone.
The live spyware scanner uses advanced heuristics and a large signature database to help identify both known and emerging threats.
Subscriptions are optional and can be managed in your Google Play account. The core microphone blocker stays free.

How Micro Guard works
• With microphone protection enabled, apps and system processes that are not on your whitelist can’t access the microphone
• Temporarily allow access for calls, voice messages or recordings, then block the mic again afterwards
• Every access attempt is recorded in the log so you can review what happened on your device
• Designed to work alongside your existing antivirus, firewall or anti-spy/anti-spyware apps

Who Micro Guard is for
• Online meetings & video calls: reduce background recording risk
• Journalists, lawyers, doctors, creators and business users who handle sensitive conversations
• Travelers and frequent flyers who use public Wi‑Fi or untrusted networks
• Anyone who wants an extra layer of microphone privacy on top of Google Play Protect and their antivirus

Privacy, trust & permissions
Micro Guard is not a voice recorder. It focuses on on-device microphone access control and security logging.
To reliably enforce microphone blocking across your device, Micro Guard uses powerful Android permissions such as Device Administrator and Accessibility services. These permissions are used only for security features (blocking, logging and detection) and you can revoke them at any time in Android settings.

Microphone Blocker & Guard is developed by Protectstar™, a multi-award-winning cybersecurity company behind iShredder™ and Antivirus AI, trusted by millions of users worldwide.
You can find more details in the in-app privacy policy and in the Data safety section on Google Play.

Important limitations
Micro Guard blocks access to the microphone on your device. It can’t control what happens once audio leaves your phone – for example, calls that may be recorded by your carrier or by the person you are talking to.
For sensitive calls, we recommend using secure, end-to-end encrypted communication apps in addition to Micro Guard.

Take back control of your microphone and protect your conversations from unwanted listening with Micro Guard.