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Antivirus AI · Dual Engine

Malware can surface unnoticed. Two independent scans improve the chance of spotting suspicious files early.

Antivirus AI Dual Engine.
Detect more. Stop more.

Protectstar AI Engine + Dr.Web Engine. AV-TEST: 99.8% real-time protection and 99.9% detection of widespread Android malware (January 2025). DEKRA MASA L1 validated. Start free on Android.

Start for free How it works
AV-TEST Certified MASA L1
★ 4.4 · 29,000+ reviews
5M+ downloads
No ads
99.8% AV-TEST real-time protection 99.9% widespread malware detection
2× Independently verified AV-TEST · DEKRA MASA L1
0 Third-party sharing Google Play Data Safety
Two approaches

One engine sees a lot. Two see more.

Our AI Engine detects new and unknown malware through behavior analysis long before a traditional signature exists. The Dr.Web Engine adds decades of signature expertise and examines every file from a second, independent angle. If one engine cannot make a definitive call, the second assessment is included in the intelligent correlation. This reduces blind spots and can lower false positives.

Parallel analysis. Intelligent correlation. Both engines scan independently. Their results are combined so threats can be detected, classified, and reported more clearly — with minimal impact on resources.

malware signatures in the Protectstar database

Protectstar AI Intelligence · as of May 2026

Two engines

Two engines. One goal.

Our proprietary AI Engine works alongside an industry-grade second scanner.

Protectstar AI Engine

Signatures · Heuristics · AI Life Rules

Our proprietary engine is the core of Antivirus AI. Signatures, heuristics, AI Life Rules, and the Protectstar AI Cloud work together to detect new and unknown threats early. When a new malware strain appears anywhere in the world, the AI learns in the cloud — and that knowledge is delivered automatically to all devices.

Heuristics AI Life Rules AI Cloud
Learn more about our AI →

Dr.Web Engine

Industry-grade · Proven precision

A powerful, industry-grade second scanner with broad global signature expertise. Dr.Web examines every file from an independent angle and provides the second opinion that helps classify known malware variants more precisely.

Global signatures Broad coverage Second opinion
Checked in parallel

Parallel. Intelligent. More thorough.

When a scan starts, both engines work at the same time — independently of each other. Their results are then correlated intelligently.

Dual Engine scan flow Scan starts Automatic — one tap is all it takes ENGINE 1 · AI Protectstar AI Engine ENGINE 2 · DR.WEB Dr.Web Engine INTELLIGENT CORRELATION Threats are detected, classified, and reported clearly.
Side-by-side comparison

Single Engine vs. Dual Engine.

What one engine can do. What two engines can achieve together.

Protection capability
1 Engine
Dual Engine
Zero-day detection
Partial
Yes
Known malware signatures
Partial
Yes
Cross-checking
No
Yes
Reduced blind spots
No
Yes
Two independent scan paths
No
Yes
AI + signatures combined
No
Yes
Sources & verification

Independently tested. Clearly documented.

The key trust claims on this page are backed by external sources.

AV-TEST · January 2025

Protection & performance

99.8% real-time protection · 99.9% widespread malware detection · Report 253112

 DEKRA · MASA L1 2026

App security assessment

Validated against OWASP-based MASA requirements from the App Defense Alliance

 Google Play · Data Safety

Data Safety declaration

No data shared with third parties · Data encrypted in transit

 Google Play · User trust

4.4 ★ & 5M downloads

29,000+ reviews · 5M+ downloads · as of May 2026
6.0/6.0
AV-TEST Performance
Twice the coverage — without slowing you down

Two engines. Full speed.

In the January 2025 AV-TEST, Antivirus AI earned 6.0/6.0 points in the Performance category. AV-TEST reported no impact on battery life, no slowdown during normal use, and no excessive network traffic.

FAQ

Answers at a glance.

  • Antivirus AI combines two independent protection engines: our Protectstar AI Engine detects unknown threats based on behavior, while the Dr.Web Engine adds decades of signature expertise and a broad database of classified malware. Both engines inspect every file from an independent angle, and their results are combined through intelligent correlation. The result is protection designed to detect both classic threats and new attack patterns early.
  • Yes. During a scan, both engines run in parallel. They operate independently without influencing each other. Their results are then combined through intelligent correlation. In the January 2025 AV-TEST, Antivirus AI received 6.0 out of 6.0 points in the Performance category, with no noticeable impact on battery life or device performance.
  • The basic version with Dual Engine scanning, real-time protection, and automatic updates is available for free in the Google Play Store, with no account required to get started. Advanced premium features such as AI Cloud protection, Deep Detective™, and Advanced Threat Protection are available as optional in-app purchases. Google Play displays these in-app purchases transparently.
  • MASA stands for Mobile Application Security Assessment, a program from the App Defense Alliance, founded by Google, ESET, Lookout, and Zimperium. Mobile apps are assessed against the OWASP Mobile Application Security Verification Standard (MASVS), including areas such as secure data storage, network communication, authentication, and platform interaction. Level L1 corresponds to the standard security verification level for mobile applications. The certification is valid for one year and must be renewed. Antivirus AI was verified again by DEKRA for MASA L1 in March 2026.
  • The scores come from the independent January 2025 AV-TEST report (Report No. 253112) for Antivirus AI 2.1 on Android 12. In detail: 99.8% real-time protection against the latest Android malware threats during the test, and 99.9% detection of widespread Android malware discovered in the previous four weeks. Antivirus AI also earned 6.0 out of 6.0 points in the Performance and Usability categories, with no impact on battery life, no slowdown during normal use, and no false alarms.

Antivirus AI for Android

Your protection.
Doubled.

Basic version free. Premium features optional.

Download Antivirus AI → View all features

Free to start · Premium optional · No ads · No third-party data sharing