Avast Antivirus & Security

Contains adsIn-app purchases
7.12M 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
✔ Hack Check
✔ Photo Vault
✔ File scanner
✔ Privacy Permissions
✔ Junk Cleaner
✔ Web Shield
✔ Wi-Fi Security
✔ App Insights
✔ Virus Cleaner
✔ Mobile Security
✔ Wi-Fi Speed Test

Premium features for advanced protection:

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 Accessibility Service API to protect the visually impaired and other users against phishing attacks and malicious websites via Web Shield feature.
Updated on
Apr 26, 2023

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

Ratings and reviews

6.62M reviews
Tolar Powell
May 2, 2023
I've used Avast for probably 25 years, since way back in the late '90s or early 2000s. I've always been pleased with its performance and have rarely encountered a problem while it protected my PCs. It was natural to install it on my Android devices, and even though Android seems to be trouble-free, it does warn of bad websites. One of its best features was the App Killer, but for some reason, they've left it off this version. Avast: Bring back the App Killer!
197 people found this review helpful
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Avast Software
May 4, 2023
Hello Tolar and thanks for taking your time. I am sorry to say that there isn't much we can do about it. We needed to discontinue Task Killer feature following Google Play policy requirements. Thanks for understanding. David*Avast
Christopher Cole
May 14, 2023
I've been using Avast Premium (10 Devices) for almost a week now and so far it's great. I get all the basic security features plus several advanced security features as well. It protects my browsing, wifi, files, emails, phones, computers, apps, and it gives me other cool features like VPN, App Lock, Device Cleanup, Photo Vault, and so much more. As of right now I'm 100% happy with Avast Premium Security. If anything changes then I will be sure to update this review. I recommend it!!!
59 people found this review helpful
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Avast Software
May 17, 2023
And we are happy to hear it! Thanks for reaching out. David*Avast
Christina Rolfe
May 27, 2023
Random ads & both internet browsers kept opening on their own when all apps were closed. I begrudgingly began backing up everything important to me & planned to reformat my phone. Eventually, I decided to at least *try* an antivirus app & I'm so glad I did! I had good experiences with Avast on laptops previously & I can say it works just as well on phones. One scan instantly identified 2 hidden malware apks & wiped them for me. My phone is perfect again & this was just the free version!!💯
4 people found this review helpful
Did you find this helpful?
Avast Software
May 29, 2023
Glad we could help, thanks for sharing your story! David*Avast

What's new

* Removing Avast Anti-Theft – Our research showed that it didn’t perform as well as our other built-in features so we’re officially letting it go to focus on other protection features. Already have Anti-Theft? Don’t worry, it will still be available and working for current users until September 30th, 2023.