Comparison

Device System Services vs F

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Device System Services

Monitor your device's hardware, network, memory, and storage with detailed insights and performance tracking. Includes diagnostic tools for network analysis and storage management. Offers widgets for real-time system information.

Highlights
  • Hardware specifications
  • Network status and diagnostics
  • Memory usage monitoring
  • Ping, LAN Scan, Port Scan tools
  • Storage management
  • System information widgets
Features
Read full description

Device System Service – System Information & Performance Monitoring Device System Service is a professional iOS application that provides detailed insights into your device’s hardware, network, memory, and storage. The app helps you monitor system performance, optimize resource usage, and ensure smooth operation. Key Features Hardware Information • Detailed specifications of your device’s model, processor, and GPU • Battery level and status monitoring • Biometric authentication support (Face ID, Touch ID) • Display size, brightness, and other screen-related details Network Status • IP address, Wi-Fi, and mobile network information • Internet connection check and speed data • Ping hosts or IP addresses to verify connectivity and response time • Local network insights and diagnostics Memory Usage • Detailed breakdown of memory usage (used, active, inactive, free memory) • Real-time memory monitoring with interactive charts • Performance tracking and optimization suggestions Tools The new Tools tab provides powerful built-in diagnostic utilities for advanced network analysis. • Ping Verify connectivity to any host or IP address and check network responsiveness in real time. Ideal for troubleshooting reachability and latency issues. • LAN Scan Discover active devices connected to your local network. Quickly identify IP addresses and detect available hosts within your subnet. • Port Scan Scan open TCP ports on a target device to analyze running services and network exposure. Useful for diagnostics, testing, and infrastructure validation. Storage Management • Total storage and available space display • Breakdown of space occupied by files and apps • Visual representation of disk usage with modern UI elements Settings & Privacy • Remove Ads – One-time purchase for a completely ad-free experience • Manage Consent – GDPR/CCPA compliance options • Ad Personalization – Customize ad preferences based on privacy policies Modern & User-Friendly Experience • Dark Mode support for a comfortable viewing experience • Interactive visual elements, graphs, and bars for easy interpretation • Optimized for both iPhone and iPad System Service Widgets – Overview The System Service app is designed for iOS system monitoring and now features three useful widgets that display key system information in real-time. Available Widgets: Device Information Widget Displayed Data: • Device name • Battery level • iOS version • Local (LAN) and external (WAN) IP addresses Usage: This widget provides a quick overview of your device, making it especially useful for developers, network administrators, and power users. Disk Usage Widget Displayed Data: • Disk usage percentage (circular progress bar) • Used storage amount (GB) • Total storage capacity (GB) Usage: This widget allows you to instantly check how much storage is available on your device. It’s particularly useful when managing large files or installing new applications. Memory Usage Widget Displayed Data: • Memory usage percentage (circular progress bar) • Used memory amount (GB) • Total memory capacity (GB) Usage: A great tool for monitoring background app memory usage, helping optimize device performance. How to Add the Widget? 1. Long-press the home screen. 2. Tap the ”+” icon in the top-left corner. 3. Scroll down to the System Service widgets. 4. Select your preferred widget size. 5. Tap “Add Widget.” Why Use It? • Provides quick system data access • Helps optimize storage and memory usage • Easily accessible—no need to open an extra app Download and try it now!

About

F

This app manages your connected home security, protecting all internet-connected devices from cyber threats. It offers features like smart home security, browsing protection, and family controls to safeguard your digital life and online privacy.

Highlights
  • Smart home security
  • Browsing protection
  • Tracking protection
  • Botnet protection
  • Family protection
  • Device management
Features
Read full description

Requires a compatible router/home gateway with F-Secure Sense connected home security inside. F-Secure Sense connected home security in your router/home gateway protects all internet-connected devices in your connected home, from desktop computers and phones to smart TVs, gaming consoles and baby monitors against cyber attacks. The easy-to-use Sense app enables you to manage your connected home security. From F-Secure, a cyber security company, who has driven innovations in cyber security, defending tens of thousands of companies and millions of people for over three decades. Every new device in our home network is a potential back door into our digital lives, since most new connected devices aren’t designed to be secure. F-Secure Sense connected home security in your router/home gateway protects all your devices connected to your home network from ransomware, bots, and other threats to your online privacy and security. It also includes protection for your children with filtering unsuitable content and setting healthy boundaries for children’s time spent online. KEY FEATURES - SMART HOME SECURITY Protect your connected devices against online threats and hacking. Receive notifications if devices start behaving oddly and block Internet access for those devices. - BROWSING PROTECTION Explore the Internet safely and do banking and shopping worry-free as Sense in your router/home gateway will block malicious or compromised sites to prevent you from getting infected. - TRACKING PROTECTION Ensure your privacy with Sense in your router/home gateway preventing tracking sites from following your surfing habits and collecting data about you. - BOTNET PROTECTION Stay secure with Sense in your router/home gateway blocking traffic from compromised device to attacker’s command & control center. - FAMILY PROTECTION Set healthy boundaries for your children’s time online and protect your children from unsuitable web content with Sense in your router/home gateway. - MANAGE YOUR DEVICES AT HOME Manage devices in your home network with the Sense app and see how Sense in your router/home gateway is protecting you. For frequently asked questions see our user guide: https://help.f-secure.com/

Screenshots

Device System Services4 screens
F4 screens

Verdict

The call

The clearest difference is review sentiment: Device System Services at 52% against F's 0%. Device System Services also leads on rating (4.5 vs 4.0) and ratings volume (394 vs 3). F's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Device System Services sells 1 one-off in-app purchase. F asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Device System Services holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: Device System Services has 394 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 52% of Device System Services's written reviews are positive against 0% of F's.

UpkeepUpdate frequency

Device System Services ships an update every 4 months, F every 2 months. The most recent releases landed on October 21, 2026 and October 5, 2026 respectively.

Scorecard6 real differences · 4 level
Device System Services versus F: the parameters behind the verdict, then further details
ParameterDevice System ServicesF
PriceFreeFree
Rating4.5 (394 ratings) — better4.0 (3 ratings)
Positive reviews52.3% of reviews — better0.0% of reviews
Number of ratings394 — better3
Update frequencyEvery 4 monthsEvery 2 months — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.616.0 — better
Further details — not scored
Size9 MB58 MB
Age rating4+4+
DeveloperAlbert PartiF-Secure Corporation

Customer experience

Device System Services

All ratings394 ratings
Positive86.3%
Neutral5.3%
Negative8.4%
Written reviews65 reviews
Positive52.3%
Neutral1.5%
Negative46.2%

F

All ratings3 ratings
Positive66.7%
Neutral33.3%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

Device System Services

Reported bugs

9 issues
  • App crashes on startup/launch
  • Crashes when network module acquires external IP
  • Requires airplane mode or disabled connectivity to function
  • Incorrect device specifications (resolution, model variants)
  • Static pie charts instead of dynamic system statistics
Show 4 more
  • App force-closes when switching between tabs
  • Unresponsive UI elements during ad display
  • App disappears or stops functioning after device updates
  • Suspicious clipboard activity on launch

Requested features

6 requests
  • Option to delete accidentally copied items
  • System reset functionality to restore original settings
  • Camera information display
  • External USB disk space usage tracking
  • Memory cleaning/optimization features
Show 1 more
  • Dark mode support

F

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Device System Services

One-time1
  • Remove ads System Service$1.99
None

F

No in-app purchases

Questions

Is Device System Services free?
Device System Services is free to download, with in-app purchases available.
Is F free?
F is free to download, with no in-app purchases.
Which has better reviews, Device System Services or F?
Device System Services is rated higher. Device System Services averages 4.5 out of 5 from 394 ratings, while F averages 4.0 from 3 ratings.
Do Device System Services or F have ads?
Device System Services shows ads; F does not.
Which is updated more often, Device System Services or F?
Device System Services ships an update every 4 months, and F every 2 months. Most recently, Device System Services was updated on October 21, 2026 and F on October 5, 2026.

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