If you are looking for a simple, safe and completely free to protect your smartphone in 2025, the Avast Mobile Security is one of the best options available. With millions of users worldwide, it offers effective protection against viruses, online scams, and privacy threats—all with a user-friendly interface and without compromising your phone's performance. And best of all: you can download it directly from the official stores below.
Avast Antivirus & Security
What does Avast Mobile Security do?
Avast Mobile Security is a security app developed by Avast, a Czech company with decades of experience in cybersecurity. On your phone, it acts as a smart shield: it analyzes apps, links, files, and even your web browsing for suspicious activity. It also helps identify unsafe Wi-Fi networks and blocks unauthorized access to your personal data.
Main features
Some of the most useful features of Avast Mobile Security include:
- Real-time protection: Automatically detects and blocks malware.
- Wi-Fi Check: alerts you if the network you are using is insecure.
- App blocking: protect sensitive applications (such as WhatsApp or banking) with a password or fingerprint.
- Storage cleaning: removes junk files and frees up space.
- Anti-theft mode: Allows you to remotely locate, block, or erase data if your phone is stolen.
It's worth remembering that, although the free version is already very complete, some advanced features (such as contact backup or premium phishing protection) are only available in the paid version.
Android and iOS compatibility
Avast Mobile Security is available both on the Google Play Store (Android) and the App Store (iOS)However, due to iPhone system limitations, the iOS version doesn't perform deep malware scans—something iOS simply doesn't allow by design. Even so, it offers browsing protection, password management, and helpful security alerts for iPhone users.
How to use the app to recover photos?
It is important to clarify: Avast Mobile Security does not recover deleted photos. It is an antivirus, not a file recovery software. However, it can protect your photos from viruses that corrupt or encrypt them, such as in mobile ransomware attacks. If you've already lost images, it's best to use dedicated tools (like Google Photos with automatic backup or apps like DiskDigger on Android). Avast helps prevent the loss, not to reverse it.
Advantages and disadvantages
Benefits:
- Completely free with robust features.
- Available for Android and iOS.
- Intuitive interface in Portuguese.
- Protection proven by independent tests (AV-Test, AV-Comparatives).
Disadvantages:
- Some advanced features require a paid subscription.
- The free version displays suggestions to upgrade to the premium plan (but without intrusive ads).
- On iOS, functionality is more limited by system restrictions.
Is it free or paid?
Avast Mobile Security offers a full free version, ideal for most users. Those who want extra features—like online tracking protection, unlimited backup, or priority support—can opt for the paid version (Avast Premium Security), but not mandatory to have good basic protection.
Usage tips
- Activate the real-time protection in the settings as soon as you install the app.
- Use the Wi-Fi checker whenever you connect to public networks.
- Activate the app blocking to protect messages and banking data.
- Combine Avast with Google Photos (Android) or iCloud (iOS) for automatic photo backup.
- Keep your app updated to ensure protection against the latest threats.
Overall app rating
On the Google Play Store, Avast Mobile Security has over 100 million downloads and an average of 4.6 stars (based on over 3 million reviews). On the App Store, it maintains a similar rating, with praise for its ease of use and effectiveness. Independent tests by AV-Comparatives in 2024 and 2025 ranked Avast among the top 3 free antiviruses for Android in malware detection and performance.
In short, if you want a reliable, free antivirus available for both systems, Avast Mobile Security is, without a doubt, one of the best choices in 2025 — especially for those looking for a balance between protection, simplicity and practicality.