Avast Antivirus & Security

Contains adsIn-app purchases
7.02M 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. Avoid scams with advanced scans and alerts.

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.
Scam Protection: Protect yourself from scammers with advanced security features and smart alerts.
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
Sep 22, 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
7.02M reviews
September 27, 2022
I've always liked Avast. It still seems to work pretty good, even after all these years and changes to the technology. I remember Avast was one of the earlier, widely available free virus scanners to effectively detect Trojan Horse viruses on PC. Because of this, they've always had a special place in my heart. When they went mobile, I was on board.
12 people found this review helpful
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Avast Software
September 30, 2022
Hi NoxPerpetuo, thanks for your original and positive feedback! David*Avast
Justin Doran
August 19, 2022
Overall, great experience. Have been using Avast as my main AV for many years now, and haven't had any issues. The only "issue", if you'd even call it that, is that it noticeably slows down any device that it's installed on (a small price to pay for security and peace of mind). As an aside, I do wish I had the option to configure the Firewall outside of the standard "Web Shield" options, but that could just be me being overzealous.
514 people found this review helpful
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Avast Software
August 22, 2022
Hi Justin, the app should not slow your device down and normally it does not. But it can happen with some configurations. If you feel your device is slower after installation, please contact my colleagues on android@avast.com. They will help you with it. Thanks, David*Avast
Destiny Fritz
August 23, 2022
Where to start... ADs (sooop many ads), everything you do posps up ads,I understand it's free... but if the first thing that pops up when you run it after downloading is an ad... it's just too much. I mean, it runs video ads while it scans. If you are running a scan and want to explore other features of the app... Nope sorry, you have to stay on the video and scan screen.
460 people found this review helpful
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Avast Software
August 23, 2022
Hi Destiny, to sustain the development of our anti-virus, we need to show ads in the free version, thanks for understanding. However, if you prefer ad-free experience, you can now upgrade to a Premium version. Find out more on the app's home screen. David*Avast

What's new

* Better design – We've polished our designs to improve your overall experience.
* Regular fixes – Just the usual improvements and bug fixes to keep everything working smoothly.smoothly.