Avast Security & Virus Cleaner

Contains adsIn-app purchases
4.6
7.33M reviews
100M+
Downloads
Content rating
PEGI 3
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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. Our trusty Email Guard will monitor your email accounts for suspicious emails.

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 Guard
✔ 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.
Email Guard: Your inbox will be continuously monitored for any suspicious emails, making your mailbox a safer place.

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: Browse your apps and see what permissions are requested in each individual app
Junk Cleaner: Instantly clean out unnecessary data, junk files, 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 Guard: 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.
Email Guard: We’ll keep your inbox safe by continuously monitoring your emails for anything suspicious.

This app uses Accessibility Service API to protect the visually impaired and other users against phishing attacks and malicious websites via Web Guard feature.

Contacts: A particular subset of this permission group is required to access device accounts to enable “restore a pin” action as part of App Lock feature.

Location: Allows Network Inspector feature to identify new networks and scan them for threats.
Updated on
10 Nov 2025

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

4.6
6.81M reviews
Valerie McCaffery
24 August 2025
I've used Avast for the best part of ten years & can say that AVAST has improved in every area with many extras to existing programmes throughout this time,all working well & much appreciated by me. When I've had self-inflicted problems using Avast eg. ordering something that was part of something I already had it was dealt with quickly &courteously. Recently,someone complained about "too many requests for ratings" They're not demands,just a way to advertise their business,without great expense.
167 people found this review helpful
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Avast Software
27 June 2019
Hi Valerie, thanks for your feedback! If you need any help of this kind, please contact my colleagues from Support (Menu -- Help & Support -- Avast direct support), they will be happy to help. Tereza*Avast
Neil Duckers
22 August 2025
This is actually one of the worst security apps on the market. my data had been released due to this over two dozen times. I only found out when I actually went over to SurfShark. the amount of data breaches were astonishing, and most of them were due to Avast selling or leaking my information. upon uninstalling it from my desktop, it actually bricked my system (a top end system), requiring me to hard boot it. Avoid this service like the plague. There's cheaper and much more effective out there.
12 people found this review helpful
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Avast Software
25 August 2025
Hi Neil, this data breach issue will probably require some dialogue with our Support Team, which may be a difficult task here on Google Play. Can you please contact us on https://support.avast.com and describe your problem in detail? Thanks, David*Avast
A Google user
27 May 2019
I was using what I thought was a free version, but had a notice to say I had to pay for continued use. I paid it as I was happy with the app. Ever since though, every few minutes I get alerted with a message that says "Avast Mobile Security, we're always looking out for you" it's REALLY annoying and completely unnecessary. I've turned off all notifications, yet it still continues to happen. I want my money back and I want to uninstall it, I can't stand it any longer, it's driving us all mad!
49 people found this review helpful
Did you find this helpful?
Avast Software
28 May 2019
Hi, it is a known issue with Huawei devices. We can recommend you to long tap the notification in order to manually change its priority. I hope it helps, Tereza*Avast

What's new

* You'll experience more stability and better performance thanks to small fixes throughout the app.
* Your feedback is important to us. Let us know about your experience so we can make the app even better for you.