Micro Guard Microphone Blocker

Protectstar Inc.

In-app purchases

About this app

Micro Guard™ is a microphone blocker & anti-spy app that helps prevent apps and spyware from listening through your Android device’s microphone.
Turn on microphone protection with one tap and decide exactly which apps are allowed to use your mic. When you don’t need the microphone, use Micro Guard to turn it off (Mic Off) and reduce unwanted background access.

When protection is active, Micro Guard helps block unwanted microphone access, logs each access attempt and alerts you to suspicious behavior – so you stay in control of your privacy.

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 Mic Off: quickly disable microphone access and re‑enable it when needed (microphone disabler)
• 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: quickly see which installed apps can use the mic
• 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 remains 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 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 apps like 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.

Ratings and reviews

Excellent collection of security apps!! Although I've not managed to get hacker off my devices yet, these programs give me clear and detailed log files, of setting changes, app installs or app removals. They are just another added layer of security, and the more layers you have, the more difficult it is to take control of your device. For example I can see late at night maintence mode has been enabled and booted into. Although the log file ends there on that day, it made me aware of tampering.

I was using the free version of this app and it seemed quite useful, so I thought I would upgrade and try the full version. However, the app simply doesn't work. I turn the protection on manually and it is fine. This can be tested by using the voice recorder on my device which doesn't record at this point. Unfortunately as soon as I make or receive a phone call it stops working. The app still shows as being protected, but I can use apps to record and save sound. Disappointing waste of money.

When you see how many applications are turning on your microphone 24/7 you will be stunned. But if you want to get that control back in your hands then look no further! Microphone Blocker & Guard is excellent! Packed with lots of solid proven technology and exceptional features, it's going to be an application you will never regret purchasing. I've used Protectstar products for years and recommend them to anyone looking to have their right to privacy given back. Loyalty is rewarded too! 10/10

What’s new

+ Protection adjustments
+ Android 15+ adjustments
Info: Starting the protection with the boot will no longer be available on devices running Android 15+

Thank you for using Micro Guard and for being part of the Protectstar community!