Avast Antivirus & Security

Contains adsIn-app purchases
6.93M 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
Mar 30, 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
6.93M reviews
Echo Somen
May 21, 2022
Very impressed with this. I was having problems with my phone which has Lookout installed on it but it hasnt found or did a thing in all these years. Avast doesnt give you minimal info like youre an idiot ("everything is fine! bye!") when it is not all ok. Solid info, lots of free features and categories. Saw it scanned friend's network for safely when i went there which was great. Any viruses on any network or device you connect to will become yours, too! Great app..thanks much!
73 people found this review helpful
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Avast Software
May 23, 2022
Hi Echo, thanks for your original and positive feedback! David*Avast
Desert Woman
April 14, 2022
Hi. The app gives me no trouble and runs quietly in the background. However, when it asked me if I wanted hidden files cleaned and I indicated yes, immediately there were pop-ups showing some kind of questionable looking news web page I had never seen before and then a weather service app download page I couldn't exit out of. I still don't know what that's about. That was a little disturbing.
643 people found this review helpful
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Avast Software
April 4, 2022
Hi Desert Woman, in such case please contact my colleagues on android@avast.com - they would really appreciate your help with investigating this unusual problem, thank you. David*Avast
Milton Bowman
May 9, 2022
Avast is well know for being one of the top developers of antivirus applications through various platforms. This app has thought of every detail from device security to web browsing protection. It is comprehensive and well designed and also offers ad removal for a small nominal fee. I have had numerous apps that address device and web browsing security. I am very impressed with this one and would definitely recommend to family and friends.
89 people found this review helpful
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Avast Software
May 12, 2022
Dear Milton, thank you so much for recommending our software to others. We love to hear that you are satisfied. David* Avast

What's new

* New default theme! Check out our new dark theme
* Network Inspector (previously named Wi-Fi Inspector) now provides extra details about any network vulnerabilities detected
* Scam Protection offline error messages have been fixed
* You also have the freedom to enable and disable alerts in Scam Protection
* New polished designs so you can enjoy a smoother experience
* Bug fixes and stability improvements to keep your protection going strong