Device System Services vs SIM Card Status Checker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Hardware specifications
- Network status and diagnostics
- Memory usage monitoring
- Ping, LAN Scan, Port Scan tools
- Storage management
- System information widgets
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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!
SIM Card Status Checker
This app provides detailed information about Apple iPhones, including IMEI status, carrier, SIM lock, iCloud status, and blacklist checks. It's useful for verifying a device's legitimacy before purchase or for understanding your current device's specifications.
- iPhone Carrier and SIMlock Checker
- iCloud Status Checker
- Find My iPhone Status
- iPhone Black List Checker
- Apple Serial Number Checker
- iPhone Warranty Checker
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iPhone SIM Card Status Checker app offers comprehensive services for Apple iPhone phones. If you need detailed information about your iOS device, you will find them all using our app. You don`t have an iPhone yet, but are you planning to buy? Before you do this, you can also use this app to verify and carefully check the device you want to buy. The Free iPhone IMEI checker app helps you ensure that the phone comes from a legal source. Knowing the IMEI number of any device or smartphone or Serial Number, you'd be able to check the exact data of the given model. Before you buy any phone, it is a must that you check the status of iCloud, Lock or Find My iPhone. If you want to buy a used or 2nd hand phone make sure it is not blacklisted. Free iPhone IMEI checker Features iPhone Carrier and SIMlock Checker Check your iPhone original carrier, simlock status, and Find my iPhone iCloud Status Checker Find out if the iPhone or iPad has locked or clean iCloud status. It’s the best way to check if the Find My iPhone (FMI) was activated on your iOS device. Find My iPhone Check if an iPhone has an activated Find My iPhone feature. It's a must that you check the FMI status of your smartphone every time you buy a second-hand device. iPhone Black List Checker Ensure that the iPhone or iPad is not blacklisted because of being reported lost, stolen, or unpaid bills. Apple Serial Number Checker If you are an iOS (iPhone, iPad, iPod or MacBook even iWatch or Apple TV) user, you can find vital or even hidden information about your device just by typing in the Serial Number. iPhone Warranty Checker If you would like to UNLOCK your iPhone, you need to know the carrier which locked the device. You'd get all the necessary information using this app Download iPhone SIM Card Status Checker Today
Screenshots
Verdict
The clearest difference is review sentiment: SIM Card Status Checker at 81% against Device System Services's 52%. SIM Card Status Checker also leads on update cadence (monthly vs every 4 months) and rating (4.7 vs 4.5). On price, ratings volume, ads and in-app purchases 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
Both are free to download. Device System Services sells 1 one-off in-app purchase and SIM Card Status Checker sells 18 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
SIM Card Status Checker holds the better App Store score, 4.7 against 4.5. Both are backed by a comparable volume of ratings — 394 and 881 respectively. Written reviews point the same way: 52% of Device System Services's written reviews are positive against 81% of SIM Card Status Checker's.
Device System Services ships an update every 4 months, SIM Card Status Checker monthly. The most recent releases landed on September 19, 2026 and September 20, 2026 respectively.
| Parameter | Device System Services | SIM Card Status Checker |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (394 ratings) | 4.7 (881 ratings) — better |
| Positive reviews | 51.6% of reviews | 80.8% of reviews — better |
| Number of ratings | 394 | 881 — better |
| Update frequency | Every 4 months | Monthly — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | Albert Parti | Rana Parulben |
Customer experience
Device System Services
SIM Card Status Checker
User reviews
Device System Services
From 394 App Store ratingsWhat 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
SIM Card Status Checker
From 881 App Store ratingsWhat we love
- 🚀 Fast and easy to use
- 👍 Brilliant and necessary
- 🔓 Successful unlock
- 👍 Excellent
- 👍 Good app
Room to improve
- 🐛 Doesn't work
- 🐛 Scam, doesn't unlock anything
- 🐛 App doesn't work
- 🐛 Para tuzağı (money trap)
- 🐛 Never received any email
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 moreShow fewer
- 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 moreShow fewer
- Dark mode support
SIM Card Status Checker
Reported bugs
2 issues- Invalid IMEI number
- No response to inquiry
Requested features
2 requests- Support for Apple SIM
- Improve email delivery
In-app purchases
Device System Services
- Remove ads System Service$1.99
SIM Card Status Checker
- Carrier Unlock Code Service.$1.99
- Carrier Unlock Code Service.$2.99
- Unlock Code$3.00
Show 15 moreShow fewer
- Carrier Unlock Code Service.$3.99
- Carrier Unlock Code Service.$4.99
- Unlock Code$10.99
- Unlock Code$12.99
- Remove Advertisement$24.99
- Unlock Code$56.00
- Unlock Code$106.99
- Carrier Unlock Code Service$174.99
- Carrier Unlock Code Service.$179.99
- Carrier Unlock Code Service.$199.99
- Carrier Unlock Code Service.$209.99
- Carrier Unlock Code Service.$219.99
- Carrier Unlock Code Service.$239.99
- Carrier Unlock Code Service$249.99
- Carrier Unlock Code Service.$299.99
Questions
Is Device System Services free?
Is SIM Card Status Checker free?
Which has better reviews, Device System Services or SIM Card Status Checker?
Do Device System Services or SIM Card Status Checker have ads?
Which is updated more often, Device System Services or SIM Card Status Checker?
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