Comparison

Whois Data 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

Whois Data

Instantly retrieve WHOIS data for any domain name, including newer gTLDs and Internationalized Domain Names. All past lookups are saved locally for easy access.

Highlights
  • WHOIS lookup for any domain
  • Supports new gTLDs
  • Supports International Domain Names (IDNs)
  • Native language or punycode input
  • Local history of lookups
Features
Read full description

Check the WHOIS information for any domain name. Works with the newest gTLDs such as .tech, .online, and .party. International Domain Names (IDNs) are also supported. Enter the domain in either the native language or punycode. Your lookups are saved locally to your device so you can re-check your past lookups. Lookups are performed directly from your device connecting to the TLD whois servers on port 43.

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

Whois Data4 screens
Device System Services4 screens

Verdict

The call

The clearest difference is in-app purchases: Whois Data at none against Device System Services's 1. Whois Data also leads on ads (none vs shown) and review sentiment (67% vs 52%). Device System Services's advantage is update cadence (every 4 months vs every 35 months) and ratings volume (394 vs 5). On price and device support 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. Whois Data asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Device System Services holds the better App Store score, 4.5 against 4.2. That said, the two scores are not equally well evidenced: Device System Services has 394 ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 67% of Whois Data'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

Whois Data ships an update every 35 months, Device System Services every 4 months. The most recent releases landed on September 18, 2026 and September 19, 2026 respectively.

Scorecard8 real differences · 2 level
Whois Data versus Device System Services: the parameters behind the verdict, then further details
ParameterWhois DataDevice System Services
PriceFreeFree
Rating4.2 (5 ratings)4.5 (394 ratings) — better
Positive reviews66.7% of reviews — better51.6% of reviews
Number of ratings5394 — better
Update frequencyEvery 35 monthsEvery 4 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS8.2 — better16.6
Further details — not scored
Size20 MB9 MB
Age rating4+4+
DeveloperBradley WongAlbert Parti

Customer experience

Whois Data

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Device System Services

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

Bugs and requests

Whois Data

Not enough reviews yet to summarise bugs or 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

In-app purchases

None

Whois Data

No in-app purchases

1 purchases

Device System Services

One-time1
  • Remove ads System Service$1.99

Questions

Is Whois Data free?
Whois Data 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, Whois Data or Device System Services?
Device System Services is rated higher. Whois Data averages 4.2 out of 5 from 5 ratings, while Device System Services averages 4.5 from 394 ratings.
Do Whois Data or Device System Services have ads?
Device System Services shows ads; Whois Data does not.
Which is updated more often, Whois Data or Device System Services?
Whois Data ships an update every 35 months, and Device System Services every 4 months. Most recently, Whois Data was updated on September 18, 2026 and Device System Services on September 19, 2026.

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