Comparison

Device System Services vs Chat Keeper

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

Chat Keeper

Securely back up your WhatsApp conversations and analyze their content. This utility provides insights into message and media counts, along with basic chat statistics. It offers passcode or biometric protection for your imported chats.

Highlights
  • Import WhatsApp chats
  • Passcode/biometric chat protection
  • Message and media count
  • Basic chat statistics
  • Copy & paste chats
Features
Read full description

Chat Keeper is a private archive for your WhatsApp conversations. Import a chat once and it is yours to keep — readable, searchable and safe on your own device, long after WhatsApp has moved on. Your chats stay on this device. They are never uploaded. ► KEEP CONVERSATIONS THAT MATTER Export a chat from WhatsApp, hand it to Chat Keeper, and it becomes a permanent, readable archive — messages, photos, videos, voice notes and documents, laid out the way you remember them. A step-by-step guide walks you through getting the file out of WhatsApp, for a single chat or a group. ► READS EXPORTS FROM ANY PHONE, IN ANY LANGUAGE It does not matter what language your phone is set to, whether the export came from an iPhone or an Android, or how old it is. If a chat would not import into an older version of Chat Keeper, try it again. ► READ IT LIKE A CHAT, NOT A TEXT FILE Bubbles, dates, and every participant in their own color. Bold, italic and struck-through text appears the way it was typed. Tap a photo to open it, play a voice note where it was sent. ► FIND ANYTHING Search inside a conversation and jump straight to the message. Browse everything that was ever sent as Media, Links or Documents. Open a chat's details to see when it started, how many messages it holds and who wrote most of them. ► BACK IT UP, TAKE IT WITH YOU Save your whole archive — every chat and every attachment — as a single file, and read it back onto a new phone. Keep that file wherever you like: on a computer, on a drive, in iCloud Drive. Protect it with a passphrase if you want to. ► EXPORT A SINGLE CHAT Share one conversation as a web page that opens in any browser with its photos and voice notes intact, as a PDF for printing, or as plain text small enough to email. Yours to keep, readable without this app. ► SEE THE SHAPE OF YOUR CONVERSATIONS When you talk, how quickly you reply, who gets in touch first, your longest streak and your longest silence, which emoji you actually use, and what was sent. ► LOCKED, AND OFFLINE BY DESIGN Lock the app with a passcode, and unlock it with Face ID or Touch ID. There is no account and no sync, and Chat Keeper never uploads your conversations: they are on your phone, and a backup file goes only where you put it. ► WORTH KNOWING BEFORE YOU BUY Chat Keeper reads the chat exports WhatsApp produces. It is a one-way street: a conversation you archive here can be read, searched, printed and exported, but it cannot be put back into WhatsApp, and no app can do that. It archives what you export — it does not recover messages that are already gone. ► SUPPORT If you have a question or a request, send us an e-mail. We answer, and if something is broken we fix it. --- If you find Chat Keeper useful, please tell a friend and leave a rating on the App Store. Thank you.

Screenshots

Device System Services4 screens
Chat Keeper4 screens

Verdict

The call

The clearest difference is in-app purchases: Chat Keeper at none against Device System Services's 1. Chat Keeper also leads on ads (none vs shown) and update cadence (every 6 weeks vs every 4 months). Device System Services's advantage is rating (4.5 vs 4.2) and ratings volume (394 vs 58). On price, review sentiment, monetization model 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. Chat Keeper 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 58, so its average is the more settled of the two. Written reviews complicate that: 52% of Device System Services's written reviews are positive against 56% of Chat Keeper's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Device System Services ships an update every 4 months, Chat Keeper every 6 weeks. The most recent releases landed on October 17, 2026 and October 12, 2026 respectively.

Scorecard5 real differences · 5 level
Device System Services versus Chat Keeper: the parameters behind the verdict, then further details
ParameterDevice System ServicesChat Keeper
PriceFreeFree
Rating4.5 (394 ratings) — better4.2 (58 ratings)
Positive reviews52.3% of reviews56.3% of reviews — better
Number of ratings394 — better58
Update frequencyEvery 4 monthsEvery 6 weeks — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.616.0 — better
Further details — not scored
Size9 MB57 MB
Age rating4+4+
DeveloperAlbert PartiRBT Digital LLC

Customer experience

Device System Services

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

Chat Keeper

All ratings58 ratings
Positive81.0%
Neutral0.0%
Negative19.0%
Written reviews16 reviews
Positive56.3%
Neutral0.0%
Negative43.8%

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

Chat Keeper

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

Chat Keeper

No in-app purchases

Questions

Is Device System Services free?
Device System Services is free to download, with in-app purchases available.
Is Chat Keeper free?
Chat Keeper is free to download, with no in-app purchases.
Which has better reviews, Device System Services or Chat Keeper?
Device System Services is rated higher. Device System Services averages 4.5 out of 5 from 394 ratings, while Chat Keeper averages 4.2 from 58 ratings.
Do Device System Services or Chat Keeper have ads?
Device System Services shows ads; Chat Keeper does not.
Which is updated more often, Device System Services or Chat Keeper?
Device System Services ships an update every 4 months, and Chat Keeper every 6 weeks. Most recently, Device System Services was updated on October 17, 2026 and Chat Keeper on October 12, 2026.

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