Android's built-in security has improved significantly over the last few years. Google Play Protect scans every app on your device automatically. For most users with good habits, it is sufficient.
But there are situations where a third-party antivirus app adds real value: if you install apps from outside the Play Store, if you share a device with others, or if you use your phone for sensitive financial activity.
Malwarebytes
The most trustworthy name in Android security. Malwarebytes focuses on detecting and removing malware rather than the bloated feature sets of traditional antivirus software. The free version scans on demand. The paid version adds real-time protection.
Install this first if you are looking for something basic and reliable.
Bitdefender Mobile Security
Consistently rated highly in independent tests. Bitdefender offers real-time scanning, VPN access, web protection, and app lock. The interface is clean. Performance impact on device speed is minimal. The paid version is reasonably priced.
Kaspersky Mobile Security
Strong detection rates in lab testing. Kaspersky offers real-time scanning, anti-theft features, call blocking, and VPN. There has been controversy around the company's Russian origins. If this is a concern, Bitdefender or Malwarebytes are safer choices from a trust perspective.
Norton Mobile Security
Norton is a well-known brand with solid detection capabilities. The app includes identity protection features and safe browsing. It is heavier on resources than Malwarebytes or Bitdefender.
What You Do Not Need
Anything marketed primarily as a "RAM cleaner" or "battery booster." These apps do not work as advertised and some actively harm performance. Android manages memory automatically. Anything claiming to "clean" your phone beyond clearing app caches is making a promise it cannot keep.
The Honest Recommendation
Enable Google Play Protect. Be selective about what you install. Do not tap links in unsolicited messages. For most people, that is better protection than any paid antivirus app.
If you want extra peace of mind, Malwarebytes free is a solid addition.
