Avast One from Avast Software bundles antivirus, scam filtering, a VPN and a junk cleaner into a single Android app. Its Scam Guardian adds call blocking plus email and SMS checks, while the cleaner clears browser history, duplicate photos and old contacts. The core protection is free, with ads and in-app purchases, and it needs Android 10 or newer.
Avast Software and a 2011 first release
The developer is Avast Software, which publishes the app under the package ID com.avast.android.mobilesecurity. Google Play shows a first release date of December 5, 2011, so the package has a long history on the platform.
The current version is 26.18.0.260925870, updated on September 29, 2026. It carries an Everyone content rating and sits in the antivirus category.
Scam Guardian, VPN and Cleanup in one app
The core is a virus and malware scanner covering web, file and app checks. It also includes Hack Alert for password leaks, a Network Inspector for Wi-Fi security and protection against phishing from emails and websites.
Scam Guardian adds Web Guard for browsing, plus Avast Assistant for questions about suspicious messages. The Pro tier adds Call Guard, which blocks and labels scam calls, along with Safe SMS and Email Guard.
SecureLine VPN offers over 100 locations and streaming-optimized servers. Avast Cleanup removes junk files, browser history, cookies and temporary files. Web Guard uses the Accessibility Service API.
Android 10 minimum and a free download
Avast One needs Android 10 or later. It is free, but it contains both ads and in-app purchases. The Pro features are likely behind a paid tier.
Avast One pros and cons
Pros
- Free to install on Google Play
- Covers antivirus, scam filtering, VPN and cleanup in a single app
- Call blocker, SMS guard and email guard are listed among the features
- Google Play rating of 4.6 from 7.3 million ratings
- Requires only Android 10 or later
Cons
- Contains ads
- Offers in-app purchases for some features
- Web Guard depends on the Accessibility Service API
Is Avast One safe?
Avast One is made by Avast Software, a company that has been shipping mobile security tools since the app first appeared in December 2011. It is rated Everyone and carries ads and in-app purchases, so expect upgrade prompts for the paid extras like the VPN. As a security app it asks for broad access to scan files and messages, so look over the permission list before you accept it.
How to install Avast One
- Press the Google Play button on this page.
- Check the listing in the Play Store and press Install.
- Open Avast One when the install finishes. Updates arrive through Google Play.
