F-Secure Mobile Security

by F-Secure Corporation

4.2 1.1M+ reviews
415M+ Installs
F-Secure Mobile Security icon
F-Secure Mobile Security icon
Tools

F-Secure Mobile Security

by F-Secure Corporation

4.2 1.1M+ reviews
415M+ Installs
F-Secure Mobile Security screenshot 1
F-Secure Mobile Security screenshot 2
F-Secure Mobile Security screenshot 3
F-Secure Mobile Security screenshot 4
F-Secure Mobile Security screenshot 5
F-Secure Mobile Security screenshot 6

Ratings Breakdown

4.2 ★★★★★ 1.1M+ ratings
5 71%
4 8%
3 4%
2 3%
1 14%

Data from Google Play at the time of writing.

What This App Is Supposed To Do

F-Secure Mobile Security is the rebrand of Lookout, a name that’s been on Android phones for years. It bundles a virus scanner, anti-theft tools like remote lock and wipe, Safe Wi-Fi protection, a VPN-based Safe Browsing feature, and identity monitoring including dark web alerts and breach reports. It’s aimed at everyday Android users who want a single app handling malware protection, device recovery, and identity theft monitoring rather than juggling several separate tools.

Where It Actually Performs Well

Long-time users, including at least one reviewer who managed antivirus software professionally for computer labs, describe the underlying scanning and protection as solid and unobtrusive when it works. The core idea of combining device security with identity monitoring and theft recovery features is genuinely useful, and people who stuck with the free version for years did so because it delivered basic protection without fuss. When the app isn’t throwing up paywalls, the scanning, update, and location-tracking functions are described as intuitive and reliable.

The Paywall Problem That Overshadows Everything

The most consistent and damaging complaint across reviews is that the app has become effectively unusable for free users since the rebrand. Multiple reviewers report that opening the app now shows a screen pushing a $59.99/year subscription that completely obscures the functional interface, with no way to dismiss it, even after force-closing and reopening the app. Users who installed it fresh on new phones say they couldn’t get past this screen at all, and long-time free users say the app now blocks basic access it used to provide without charge.

Billing And Reliability Issues On Top Of The Paywall

Beyond the forced upsell screen, paying customers report their own headaches. One reviewer who had been a paid subscriber for over a decade says their annual renewal payment kept getting rejected across multiple browsers and payment accounts, with no resolution offered. Others mention the app randomly crashing or stopping, which some suspect is intentional to push people toward paying. This combination of an intrusive paywall and unreliable billing for existing subscribers is a serious trust problem for a security app, where reliability should be non-negotiable.

Who Should Consider Installing It

If you’re willing to pay for a full-featured mobile security suite and the subscription and login process works smoothly on your device, F-Secure Mobile Security still offers a legitimate feature set: antivirus scanning, anti-theft tools, Safe Wi-Fi, and US-based identity monitoring with theft assistance. But if you’re expecting the free tier that made Lookout popular for years, current reviews suggest that’s largely gone, replaced by a screen you can’t get past without subscribing. Given the volume of complaints about being locked out entirely and about renewal payments failing, it’s worth testing the free trial cautiously and keeping an eye on your billing before committing to a paid plan.

Pros

  • Solid virus scanning and detection
  • Useful anti-theft and remote wipe tools
  • Identity monitoring and dark web alerts
  • Safe Wi-Fi protects against phishing attacks
  • Long track record from Lookout heritage

Cons

  • Paywall screen blocks free app access
  • Renewal payments frequently fail for subscribers
  • App reportedly crashes or stops randomly

What Real Users Say

Rick Sjolin 1/5

“I used to use it before you changed branding (from Lookout to F-Secure), and I'm beginning to think that the "F" in the name is a big *F-U* to customers! Having the (very basic) free version was a definite value-add, with the paid version (including more features & utility) for people who needed that additional protection... The fact that now…”

👍 466 found this helpful
T V 1/5

“I've been using lookout on my devices for 2 decades. Whenever I wanted to be sure I could open it up and do a scan. Now, for the past month, it is almost always unusable. When I open it up, the page that pitches the paid version obscures the functional page, so I can't run a scan. I guess they…”

👍 430 found this helpful
A Google user 5/5

“Having been the technical manager for a couple of computer labs for the last decade, I can tell you that when the antivirus software fails you really know it has failed. When it works, is intuitive and does its job your only reminder is when you have to wait for a scan or an update. I use the free version…”

👍 280 found this helpful

Reviews sourced from Google Play, selected by helpfulness at the time of writing.

App Info & Permissions

Developer F-Secure Corporation
Content rating Everyone
Contains ads No
In-app purchases $0.99 - $99.99 per item
Installs 415M+
Price Free

Permissions this app requests

📷 Camera Take pictures and videos
👥 Contacts Find accounts on the device; read your contacts
🕘 Device & app history Retrieve running apps; read your Web bookmarks and history
📱 Device ID & call information Read phone status and identity
🪪 Identity Find accounts on the device
📍 Location Approximate location (network-based); precise location (GPS and network-based)
📞 Phone Read phone status and identity
🖼️ Photos/Media/Files Read the contents of your USB storage; modify or delete the contents of your USB storage
💾 Storage Read the contents of your USB storage; modify or delete the contents of your USB storage
📶 Wi-Fi connection information View Wi-Fi connections

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Frequently Asked Questions

1

What is F-Secure Mobile Security?

It's a mobile security and antivirus app for Android, formerly known as Lookout, that bundles virus scanning, anti-theft tools like remote lock and wipe, Safe Wi-Fi and Safe Browsing protection, and identity monitoring services. It's designed to be an all-in-one tool covering device protection, data privacy, and identity theft recovery. F-Secure Corporation took over the Lookout brand and renamed it as part of this transition.

2

Is F-Secure Mobile Security free to use?

There is technically a free tier, but many recent reviewers report that opening the app now shows a subscription pitch screen priced around $59.99 per year that blocks access to the actual features. Users say they cannot dismiss this screen even after force-closing the app, effectively making the free version unusable for them. If you want reliable free access, be aware this is a widely reported issue rather than an isolated bug.

3

Does F-Secure Mobile Security work well for detecting viruses and malware?

Reviewers with technical backgrounds describe the scanning engine as solid and intuitive when the app functions normally. Complaints in reviews focus overwhelmingly on the paywall and billing experience rather than on the antivirus detection itself failing. So the core security engine appears trustworthy, but getting to it is the bigger challenge for many users.

4

Are there problems with billing or subscriptions?

Yes, several long-time paid subscribers report that their annual renewal payments were rejected repeatedly across different browsers and payment methods, with no clear fix from the developer. This is a significant concern for a security app where lapses in coverage could leave a device unprotected. Anyone subscribing should monitor their renewal date and confirm payment goes through successfully.

5

Who should download F-Secure Mobile Security?

It may suit users who are prepared to pay for a full security and identity protection subscription and who don't mind troubleshooting billing if issues arise. It's less suitable for anyone expecting the free, ad-supported experience that Lookout offered previously, since many reviewers say that access is now blocked by a persistent paywall screen. Users should go in with realistic expectations about needing to pay to get real functionality.