Avast Antivirus & Security

Contains adsIn-app purchases
6.99M reviews
Content rating
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About this app

Protect against viruses & other types of malware with Avast Mobile Security, our free antivirus app for Android. Trusted by over 435 million people.

Protect your privacy by receiving alerts when spyware or adware-infected apps are downloaded onto your device. Secure your device against phishing attacks from emails and infected websites. Turn on the VPN to keep your online browsing private and safe, as well as to access your favorite paid streaming services when traveling abroad. Get alerts when your passwords have been compromised by hackers.

With more than 100 million installs, Avast Mobile Security & Antivirus provides much more than just antivirus protection.

Free features:

✔ Antivirus Engine
✔ Anti-Theft
✔ Hack Check
✔ Photo Vault
✔ File scanner
✔ Privacy Permissions
✔ RAM Boost
✔ Junk Cleaner
✔ Web Shield
✔ Wi-Fi Security
✔ App Insights
✔ Virus Cleaner
✔ Mobile Security
✔ Wi-Fi Speed Test

Premium features for advanced protection:

Last Known Location: Check your device's last location before its battery died.
App Lock: Keep your sensitive content secure and private by locking any app with a PIN code, pattern, or fingerprint password. Only you’ll be able to access them.
Remove Ads: Eliminate ads from your Avast Mobile Security & Antivirus experience.
Avast Direct Support: Contact Avast directly from the app to receive quick responses to your inquiries.

Finally, Ultimate users can enjoy our VPN (Virtual Private Network) as well - Hide your online activities from hackers and your ISP by encrypting your connection. You can also change your location to access your favorite paid streaming services from anywhere.

Avast Mobile Security & Antivirus in detail

Antivirus Engine: Automatically scan for viruses and other kinds of malware, including spyware, Trojans, and more. Web, file, and app scanning provides complete mobile protection.
App Insights: Discover how much time you spend using each app on your device and take back control of your phone-life balance.
Junk Cleaner: Instantly clean out unnecessary data, junk files, system caches, gallery thumbnails, installation files, and residual files to give you more space.
Photo Vault: Secure your photos with a PIN code, pattern, or fingerprint password. After moving photos to the Vault, they are fully encrypted and only accessible to you.
Web Shield: Scan and block malware-infected links, as well as Trojans, adware, and spyware (for privacy and safe web browsing, e.g. Chrome).
Wi-Fi Security: Check the security of public Wi-Fi networks, browse safely, and make secure online payments from anywhere.
Hack Alerts: See which of your passwords have been leaked with a quick and simple scan, so you can update your login credentials before hackers infiltrate your accounts.

This app uses the Device Administrator permission. This permission allows you to remotely lock and wipe your device from my.avast.com.

This app uses the Accessibility permission to protect visually impaired and other users against phishing attacks and malicious websites.
Updated on
Aug 10, 2022

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
App activity, App info and performance, and Device or other IDs
This app may collect these data types
Location, Personal info and 7 others
Data is encrypted in transit
You can request that data be deleted
6.99M reviews
George Ritzlin
July 28, 2022
I'm going to uninstall Avast AV because it has a major problem. Every once in a while it runs a super intrusive ad that takes over your phone. The navigation buttons disappear and all you can do is watch the ad run endlessly. This just happened to me and the only way out of it was to reboot my phone! Avast management is so stupidly greedy or desperate they think trapping you will create business. Wrong. I accept free apps have ads, but not when they become viruses.
325 people found this review helpful
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Avast Software
July 29, 2022
Hey George, this sounds very unusual. All the ads can be skipped after couple seconds. We would really appreciate if you could reach out at android@avast.com. David*Avast
Claire Camburn
August 4, 2022
Don't think the basic anti-virus app works. Scans always come up negative, but phone still doing same thing: interrupting me trying to text or email someone. Takes control and phone goes crazy Always have to turn off my phone, which is difficult because something had control and keeps bouncing me around. Very irritating and frightening at the same time.
135 people found this review helpful
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Avast Software
August 4, 2022
Hi Claire, if you are not satisfied with the result of the scanning and want us to help you solve any security problem with your mobile device, please contact us via e-mail (android@avast.com) and add some details. Thanks, David*Avast
Lisa Duncan
July 30, 2022
Avast Antivirus software is the best program out there that I've found. It actually caught Facebook Messenger using the microphone to record conversations. Some of those were up to twenty-one minutes long. Now my microphone and camera permissions are never left on. As an added security measure to keep prying eyes out of your phone, all you need to do is use the Avast App Safe Lock. In the nearly two years I've had Avast I've been virus free but before that I had two bad ones. Thank you Avast!
243 people found this review helpful
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Avast Software
August 1, 2022
Hi Lisa, thanks for sharing your positive experience with our application, we really appreciate it. David*Avast

What's new

* UX design improvements to create a smoother experience across the app
* Minor bug fixes