Avira Antivirus 3.1 for Android: Free on Google Play?

Updated 6 November 2026 · Standard formula, shown below

Yes, Avira Antivirus 3.1 for Android is free to download from the Google Play Store. The app uses a freemium model: the core antivirus protection, app scanning, and basic privacy features cost nothing, while advanced extras like VPN data and identity protection require a paid subscription.

Background: What Avira Antivirus 3.1 Is

Avira is a German cybersecurity company that has been making antivirus software since the late 1980s. The Android version, numbered 3.1 in some regions or simply listed as “Avira Antivirus – Security & Privacy,� is one of the most popular free security apps on Google Play, with over 100 million downloads. It is designed to protect Android phones and tablets from malware, phishing websites, and other online threats without draining battery life.

What You Get in the Free Version

The free tier includes several genuinely useful features, not just a trial:

Real-time malware scanning: Continuously checks apps and files as you install or download them.
On-demand scans: You can manually scan the entire device, specific folders, or individual files.
Privacy advisor: Reviews installed apps to show which ones access sensitive permissions like location, contacts, or camera.
Anti-phishing protection: Warns you when you open a known fraudulent website in your browser.
Data breach alerts: Monitors your email addresses against known data breaches (limited to one email in the free version).
App lock: Lets you password-protect individual apps like WhatsApp or banking apps.

What Requires a Paid Subscription

Avira’s premium plans (called Avira Prime or Avira Pro) add features that the free version does not include:

VPN: The free version includes a very small monthly data allowance (usually 500 MB per month). The paid version offers unlimited VPN traffic.
Identity monitoring: Tracks more email addresses, credit card numbers, and bank account details.
System optimizer: Tools to clean junk files and boost performance.
Password manager: A full-featured password vault (the free version has a basic one).

How to Download and Install It

To get the free version, follow these steps:

Open the Google Play Store app on your Android device.
Search for “Avira Antivirus� – make sure the developer is “Avira.�
Tap “Install.� The app is about 50 MB, so a Wi-Fi connection is recommended.
After installation, open the app and grant the permissions it asks for (storage, phone, etc.). These are necessary for scanning.
Create a free Avira account or skip that step for now – the app works without one, but some features like data breach alerts require an account.

Is It Safe and Legitimate?

Yes, Avira is a well-known, legitimate company. The app is regularly updated and has been independently tested by organizations like AV-TEST and AV-Comparatives, where it consistently receives high scores for malware detection. The free version is ad-supported, but the ads are unobtrusive and do not compromise security. However, be cautious about fake “Avira� apps that appear in search results – always check the developer name and download count before installing.

Common Problems and How to Fix Them

Users occasionally encounter issues, but most are easy to resolve:

Battery drain: If you notice excessive battery usage, go to the app’s settings and change the “Scan frequency� from “Real-time� to “When idle� or “Manual.�
False positives: Avira may flag a legitimate app as suspicious. You can add it to the “Exceptions� list in the settings.
VPN not working: The free VPN may fail if you have already used your monthly data allowance. Check the VPN section in the app to see your remaining quota.
App not updating: If the Play Store shows an error, clear the cache of the Play Store app or restart your device.

How It Compares to Other Free Antivirus Apps

Avira is often compared with other free Android security apps like Bitdefender, Kaspersky, and Malwarebytes. Here is a quick comparison:

Bitdefender: Offers a similar free tier with no ads, but lacks an app lock and data breach alerts.
Kaspersky: Also free, with a strong reputation, but has been in the news due to geopolitical concerns (though the app itself is safe).
Malwarebytes: Focuses on malware removal rather than real-time protection; the free version does not include real-time scanning.

Avira stands out because it bundles more free features than most competitors, especially the app lock and data breach alerts.

Frequently Asked Questions

Is Avira Antivirus 3.1 really free, or is it a trial?

It is genuinely free. The core antivirus features never expire and do not require a credit card. The paid subscription only unlocks additional premium features like unlimited VPN and identity monitoring.

Does Avira slow down my phone?

Avira is designed to be lightweight. In independent tests, it has a minimal impact on device performance. If you notice slowdowns, you can adjust the scan schedule or turn off real-time protection (not recommended).

Can I use Avira on multiple devices with one account?

Yes, you can use the free version on multiple Android devices with the same Avira account. The paid subscription covers up to 5 devices, depending on the plan.

Does Avira work on iOS?

Avira has an iOS app, but it is less useful because Apple’s iOS does not allow third-party apps to scan for malware. The iOS version focuses on VPN, identity protection, and phishing warnings.

Will Avira protect me from phishing emails?

Avira’s anti-phishing protection works in the browser, but it does not scan your email app. For email-specific protection, you would need a separate email security tool or use a webmail service with built-in phishing filters.

How do I uninstall Avira if I no longer want it?

Simply go to Settings > Apps > Avira Antivirus and tap “Uninstall.� You may also want to remove the VPN profile it installed: go to Settings > VPN and delete the Avira VPN profile.

Final Thoughts

Avira Antivirus 3.1 for Android is a solid, free choice for basic malware protection. It offers more features than most free competitors, and the paid upgrade is optional. Just remember that no antivirus is 100% foolproof – always download apps from official stores, avoid clicking suspicious links, and keep your device’s operating system updated.

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