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 Apple Watch. Monitor device health, storage, battery, and network status with clear explanations and historical data. Perform hardware diagnostics and optimize your device's performance.
- Device status overview
- Detailed battery health and history
- Comprehensive hardware specifications
- Storage management and optimization
- Network analysis and speed tests
- Hardware diagnostic tests
- Home/Lock Screen widgets and Siri 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 • Charts of capacity, cycles and your daily charge range • A step-by-step guide to find the file, and a weekly reminder if you like • Works for your iPhone, iPad and Apple Watch ► 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 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. The free version shows ads; you can choose non-personalized ads at any time.
RayStatus | Phone Diagnostics
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RayStatus turns the device information iOS actually makes available into clear status cards. Check battery, storage, memory, network, display, audio, and thermal state in one place. If iOS does not expose a value, RayStatus says so instead of filling the gap with an estimate. DEVICE STATUS AT A GLANCE • Check battery level, available storage, memory, network interfaces, data usage, and system details • See the four thermal states published by iOS without presenting them as temperatures • Enable only the cards you need and arrange them in your preferred order • Refresh manually or use Live Monitor to watch short-term changes TRACK BATTERY HEALTH • Import maximum capacity and cycle count from iPhone Analytics Data • Files are parsed entirely on your device and only the useful battery fields are retained • You can also enter the figures shown under Battery Health & Charging manually • Build a local history to understand capacity changes, charging habits, and trends HOME SCREEN AND LOCK SCREEN WIDGETS • Single-reading, battery, four-reading, and eight-reading layouts • Home Screen and Lock Screen families • Capture times and a refresh button make data age clear • iOS schedules background widget updates; no app or paid plan can guarantee continuous refreshes HONEST ABOUT iOS LIMITS iOS does not let third-party apps directly read CPU or battery temperature, system-wide CPU usage, cellular signal strength, or ambient humidity. RayStatus explains these limits instead of showing plausible-looking guesses. YOUR DATA STAYS ON YOUR DEVICE • No sign-up and no RayStatus account • Device readings, preferences, and imported battery-health records are stored locally • Analytics files are never uploaded, and RayStatus has no developer-operated server • The free tier includes ads; RayStatus Pro removes them RAYSTATUS PRO The free version includes every live status reading, card ordering, and the single-reading and battery widgets. RayStatus Pro is available only as a monthly or yearly subscription. There is no lifetime purchase. An active subscription unlocks: • No ads • Unlimited history • Charging behavior analysis and battery-health trends • Every widget size and multi-reading overview • Charging Live Activity • CSV export 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
System Guard and RayStatus | Phone Diagnostics are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
| Parameter | System Guard | RayStatus | Phone Diagnostics |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (979 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 979 — better | — |
| Update frequency | Weekly | — |
| 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 | 19 MB | 12 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?
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