System Guard vs RayStatus | Phone Diagnostics
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
System Guard
Gain deep insights into your iPhone, iPad, or Watch's performance and health. Understand storage, battery, network, and hardware details with clear explanations and actionable alerts. Includes comprehensive hardware diagnostics.
- Device status overview
- Detailed battery health and history
- Comprehensive hardware diagnostics
- Network connection and data usage monitoring
- Storage analysis and optimization suggestions
- Home and Lock Screen widgets
- Apple Watch app integration
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Know your iPhone, iPad and Watch inside out. System Guard shows what your device is, how it is doing right now and whether anything needs your attention - in plain language, with every figure explained. ► AT A GLANCE • One status card: storage, memory, temperature, Low Power Mode, passcode and whether a newer iOS is available for your model • CPU, memory, storage and power as live tiles • Tap any value for a clear explanation of what it means ► BATTERY HEALTH • Real capacity and charge cycles, read from the diagnostics file iOS writes on your device • Your iPad, Apple Watch or a second iPhone too: import their files and see each device under its own name, with this device first • Charts of capacity, cycles and your daily charge range (Pro) • Sync your readings with iCloud across your devices (Pro) • A step-by-step guide to find the file, and a weekly reminder if you like ► EVERY DETAIL OF YOUR DEVICE • Model, chip, GPU, memory, display, cameras, sensors, audio and security • Storage: total, used, free - and what iOS can free up by itself • Compare your device with any other iPhone or iPad ► HISTORY AND ALERTS • Storage, memory and temperature over days and weeks, with charts you can zoom and scroll • A notification before you run out of storage, and when a new iOS version is out ► NETWORK • Connection, addresses, VPN, DNS and cellular technology (LTE, 5G) • Live traffic, and your data use today, yesterday and over 7 and 30 days • Wi-Fi name and access point, and the router • Find the devices on your Wi-Fi network: printers, speakers, TVs and more • Speed test: latency, download and upload ► HARDWARE CHECK-UP • 16 tests: display, touch, speakers, microphone, haptics, vibration, cameras, Face ID or Touch ID, sensors, buttons and more • Ideal before buying or selling a used device • Export a device report as PDF, text or JSON ► WIDGETS, CONTROLS, WATCH AND SHORTCUTS • Home Screen and Lock Screen widgets for storage, memory, CPU and status • Control Center controls for the check-up and the speed test • Apple Watch app with the watch's own figures, your iPhone's status and complications • Shortcuts and Siri: ask for free storage, memory, CPU load and more ► SYSTEM GUARD PRO One purchase, no subscription. Removes all ads and unlocks History and alerts, the full check-up, the network details and the speed test, the devices on your network, the battery charts and full battery details, more devices in Battery health, iCloud sync, the device report, and every widget and Shortcut. ► PRIVACY System Guard reads only what iOS makes available to every app, never changes anything on your device and needs no account. Your history and battery readings stay on your device, unless you sync the battery readings with your own iCloud, which only you can see. The free version shows ads; you can choose non-personalized ads at any time.
RayStatus | Phone Diagnostics
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RayStatus turns what iPhone lets apps read into a set of clear, easy-to-read cards. Every number says where it came from: Live is a reading from iOS right now, Imported carries its date, and Estimate is exactly that. No made-up numbers dressed up as precise. STATUS: IS MY PHONE OK RIGHT NOW? • Battery level and an estimated charging speed, plus free space that matches Settings • A battery temperature range, always labelled Estimate, refined by imported temperature history • Connection status and your latest speed test • Choose which cards to show and in what order DEVICE: WHAT IS THIS IPHONE? • Model, iOS version, processor, memory, display, cameras and sensors • Copy it all, or turn it into a share card for Stories and posts. Serial number and IMEI can't be read by apps, so they never appear TESTS: 15 HARDWARE CHECKS • Dead pixels, screen edges and touch, multi-touch, speaker and earpiece, microphones, camera and flash, vibration, volume buttons, Face ID, charging port, motion sensors, compass and barometer, proximity sensor, location accuracy • "Run every check in order" walks you through them and ends with a single result NETWORK TOOLS • Speed test over Wi‑Fi or cellular: download, upload, and latency at idle and under load • Ping, DNS lookup, route trace, local devices, IP info, port scan, Whois, website response and streaming quality • Connection finder: walk around and compare which spot is smoothest • Bluetooth finder with a direction radar to locate nearby devices TOOLBOX • Sound level meter, level and protractor, NFC read test, flashlight and screen fill light, haptics AI CHECK • Ask in one sentence, like "Why is my battery draining faster lately?" The AI on this iPhone answers from the readings RayStatus has, and nothing is uploaded • 3 free questions a day; after that, each question needs one ad watched to the end. Pro is unlimited • For reference only, not a professional diagnosis. Appears only on supported iPhone models HISTORY • Speed tests, checks, warm spells and low battery are saved to one searchable timeline WIDGETS, LIVE ACTIVITY AND SIRI • Small and medium Home Screen widgets are free; large and Lock Screen widgets come with Pro • A charging Live Activity and Dynamic Island (Pro) • A Control Center speed test button, and Siri: "Test network speed with RayStatus" or "How's my battery in RayStatus" HONEST ABOUT WHAT IOS ALLOWS iOS does not let third-party apps read the actual battery or processor temperature, Wi‑Fi signal strength, or charging wattage. RayStatus shows temperature only as a labelled estimate, and judges Wi‑Fi by latency, loss and speed instead. YOUR DATA STAYS ON YOUR DEVICE • No sign-up, no RayStatus account and no developer-operated server • Readings, history and imported battery data are stored on your iPhone • The app reaches a network test service only when you start a speed test or a network tool • The free tier includes ads; RayStatus Pro removes them RAYSTATUS PRO RayStatus Pro is available only as a monthly or yearly subscription. There is no lifetime purchase. An active subscription unlocks: • No ads • Unlimited history and CSV export • Battery decline curve and health trends • Unlimited AI Check with no ads • Large and Lock Screen widgets and the charging Live Activity Subscriptions renew automatically and can be managed or cancelled in your Apple Account. After cancellation, Pro remains active until the end of the current billing period. Current pricing is shown by the App Store purchase confirmation. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://israynotarray.dev/app/raystatus-privacy.html
Screenshots
Verdict
The clearest difference is update cadence: System Guard at weekly against RayStatus | Phone Diagnostics's every 2 months. On price, ads, in-app purchases 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
Both are free to download. System Guard sells 1 one-off in-app purchase and RayStatus | Phone Diagnostics sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
System Guard ships an update weekly, RayStatus | Phone Diagnostics every 2 months. The most recent releases landed on November 9, 2026 and November 6, 2026 respectively.
| Parameter | System Guard | RayStatus | Phone Diagnostics |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (979 ratings) — better | — |
| Positive reviews | 80.0% of reviews | — |
| Number of ratings | 979 — better | — |
| Update frequency | Weekly — better | Every 2 months |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 17.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 25 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | RBT Digital LLC | RUEI HUNG SHIU |
In-app purchases
System Guard
- System Guard Pro$2.99
RayStatus | Phone Diagnostics
- RayStatus Pro Monthly$1.991 Month
- RayStatus Pro Yearly$12.991 Year
Questions
Is System Guard free?
Is RayStatus | Phone Diagnostics free?
Do System Guard or RayStatus | Phone Diagnostics have ads?
Which is updated more often, System Guard or RayStatus | Phone Diagnostics?
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