Avast One Mobile review

Avast One Mobile is the best free option for Android users who still want always-on protection. The free app scans in real time for viruses, spyware and other malware, Web Guard uses AI to block phishing links and unsafe websites, and Avast Assistant answers questions about a suspicious message or link in seconds. It also checks how secure a Wi-Fi network is before you connect and frees up storage space. The paid tier is where scam blocking gets automatic: Premium Security stops scam SMS messages and fraudulent calls before they reach you, and adds App Locking, a VPN and unlimited hidden photos behind a PIN or fingerprint. The catch is pricing. The cheapest paid plan we found on the US store is Premium Security at $49.08 for the first year, sold as a one computer plus one mobile bundle that renews at $77.99, so it costs more than the phone-only plans from Bitdefender and Norton.

Who it is for

Android users who want real-time protection for free and may upgrade later for scam call blocking.

Price

Free version; Premium Security from $49.08 for the first year for 1 computer plus 1 mobile device, renewing at $77.99.

Save 37% $77.99 $49.08/first yr
Quoted from the vendor pricing page on November 10, 2026.

Key features

• Free real-time scanning against viruses, spyware and other malware
• Web Guard blocks phishing links and unsafe websites
• Avast Assistant gives AI advice on suspicious messages and links
• Wi-Fi security check before you connect
• Premium blocks scam SMS messages and scam calls and adds App Locking and a VPN

Strengths and weaknesses

• Strength: Real-time protection and link blocking cost nothing
• Strength: Upgrades happen inside the same app
• Strength: Avast reports a 4.8 out of 5 score from 7,020,000 people on Google Play
• Weakness: Scam SMS and call blocking need Premium
• Weakness: Cheapest paid plan is a computer plus mobile bundle, not phone-only
• Weakness: Renewal rises to $77.99 per year

Key facts

• Free plan: Yes, with real-time scanning
• Paid price: $49.08 first year, then $77.99
• Google Play rating: 4.8 out of 5 from 7,020,000 people (vendor figure)
• Also on: PC, Mac and iOS

Where it ranks

Avast One Mobile is No. 3 in our Best Antivirus for Android verdict and No. 1 in Best Free Antivirus for Android.