Avast Antivirus & Security

Contains adsIn-app purchases
7.1M 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
✔ Task Killer
✔ 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 the Accessibility permission to protect visually impaired and other users against phishing attacks and malicious websites.
Updated on
Feb 24, 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
7.1M reviews
Potato Whisperer
February 5, 2023
Seems fairly fast. Interface is reasonably good. Malwarebytes' product was causing so much lag that I couldn't even access the emergency dialer or my camera promptly. Switched to this product and haven't yet had any such issue. Used Avast on the desktop years ago, and it seemed to do a good enough job detecting malware. It was slower back then, but seems to have come some way in that regard.
398 people found this review helpful
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Avast Software
February 7, 2023
It has been nice to protect your device for all these years. Thanks four your loyalty. David*Avast
February 28, 2023
I ❤️ Avast until the past few weeks. Gave 5 ⭐️ I'm having real problems. Apps opened by themselves. My battery is losing power fast. It seems like it may be hacked. I've written 3 times. A few days ago I looked at a record of what was going on. My pin was tried about 100 times. It went on for hours every 2 minutes. Trying to open programs & files. I have a 💰 version due this month I shouldn't have to pay if you're not protecting me. I just emailed. HELP!
823 people found this review helpful
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Avast Software
February 28, 2023
Hi, as you have already been in touch with our Support, I would like to kindly ask you to wait for their response. If the common troubleshooting has not helped, your problem will require some further dialogue, which is better to follow by e-mail. Thanks, David*Avast :).
Karimu Lindsey
February 24, 2023
ALREADY AN ISSUE Is the junk cleaner not included with the subscription!?!?!? Is there really another charge to deep clean my phone!?!? Response: I done have the free version, and I paid for the premium. I paid the fee, went to clean my phone, downloaded the additional app to use, it tells me to upgrade. I'm like wait, I just paid for the premium. I find a place to put the product key from the purchase, I put in several timed, it says failed. This is an issue with paid version. Already sent em
104 people found this review helpful
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Avast Software
February 24, 2023
Hi Karimu, that I didn't understand, I am very sorry. Please contact my colleagues on android@avast.com and add all important details - they have access to the licensing system and will be better able to help you. Thanks, 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.