Comparison

ActMonitor vs Device System Services

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

Head to head
About

ActMonitor

Access detailed system information for your iPhone or iPad, including battery health, memory, and storage. Compare device specifications and monitor network traffic with ease. This lightweight utility provides essential insights into your device's performance.

Highlights
  • Battery level and estimated life
  • Memory status
  • Disk free space
  • Wi-Fi & Cellular traffic meter
  • Home widgets
  • Device tech specs
  • Model comparison
Features
Read full description

The app shows you system info about your device and compare other Apple iOS devices. It takes almost no space and really easy to use. + Battery level, status and remainng life (estimated) + Memory status + Disk free space information + Wi-Fi & Cellular traffic meter + The home widgets + Detail tech specs about Apple iOS devices + Compare models of iDevices

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!

Screenshots

ActMonitor4 screens
Device System Services4 screens

Verdict

The call

The clearest difference is rating: Device System Services at 4.5 against ActMonitor's 3.5. Device System Services also leads on ratings volume (394 vs 22). ActMonitor's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, 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. ActMonitor asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Device System Services holds the better App Store score, 4.5 against 3.5. That said, the two scores are not equally well evidenced: Device System Services has 394 ratings behind it against 22, so its average is the more settled of the two. Written reviews complicate that: 75% of ActMonitor's written reviews are positive against 52% of Device System Services's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

ActMonitor ships an update every 2 months, Device System Services every 4 months. The most recent releases landed on June 11, 2026 and September 19, 2026 respectively.

Scorecard7 real differences · 3 level
ActMonitor versus Device System Services: the parameters behind the verdict, then further details
ParameterActMonitorDevice System Services
PriceFreeFree
Rating3.5 (22 ratings)4.5 (394 ratings) — better
Positive reviews75.3% of reviews — better51.6% of reviews
Number of ratings22394 — better
Update frequencyEvery 2 months — betterEvery 4 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better16.6
Further details — not scored
Size25 MB9 MB
Age rating4+4+
DeveloperAlexandr MorozAlbert Parti

Customer experience

ActMonitor

All ratings22 ratings
Positive63.6%
Neutral4.5%
Negative31.8%
Written reviews231 reviews
Positive75.3%
Neutral7.4%
Negative17.3%

Device System Services

All ratings394 ratings
Positive86.3%
Neutral5.3%
Negative8.4%
Written reviews64 reviews
Positive51.6%
Neutral1.6%
Negative46.9%

User reviews

ActMonitor

From 22 App Store ratings

What we love

  • ⭐️ Great
  • 👍 Easy to use
  • 👍 Clean layout
  • 👍 Lots of info and ability to compare different devices
  • 🚀 Helpful to monitor memory usage and close background apps

Room to improve

  • 🐛 Home screen widgets display incompletely after recent update
  • 🔋 High battery consumption
  • 🐛 Inaccurate device specs information
  • 🐛 Crashes on some devices
  • 🐛 Doesn't support latest iOS versions and devices

Device System Services

From 394 App Store ratings

What we love

  • 👍 Clean and easy-to-use interface
  • 🚀 Fast and responsive performance
  • 📊 Comprehensive system information display
  • 🌐 Useful network information details
  • ⏱️ Shows device uptime information

Room to improve

  • 📺 Excessive full-screen video advertisements
  • 🔊 Intrusive ads with sound that startle users
  • ⚠️ Misleading security/storage warning popups
  • 🎮 Irrelevant ads (e.g., game ads on iOS)
  • 💰 Ads present even in paid version

Bugs and requests

ActMonitor

Reported bugs

4 issues
  • Home screen widgets display incompletely
  • Inaccurate device specs information
  • Crashes on some devices
  • Doesn't support latest iOS versions and devices

Requested features

4 requests
  • Update the app regularly to support new iOS versions and devices
  • Add ability to force quit running apps
  • Provide more detailed memory and CPU usage information
  • Add option to reset network data usage tracking

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

In-app purchases

None

ActMonitor

No in-app purchases

1 purchases

Device System Services

One-time1
  • Remove ads System Service$1.99

Questions

Is ActMonitor free?
ActMonitor is free to download, with no in-app purchases.
Is Device System Services free?
Device System Services is free to download, with in-app purchases available.
Which has better reviews, ActMonitor or Device System Services?
Device System Services is rated higher. ActMonitor averages 3.5 out of 5 from 22 ratings, while Device System Services averages 4.5 from 394 ratings.
Do ActMonitor or Device System Services have ads?
Device System Services shows ads; ActMonitor does not.
Which is updated more often, ActMonitor or Device System Services?
ActMonitor ships an update every 2 months, and Device System Services every 4 months. Most recently, ActMonitor was updated on June 11, 2026 and Device System Services on September 19, 2026.

Other comparisons