New from the ground up · iOS 17 and later

Know your iPhone
and iPad
inside out.

System Guard shows what your device is, what it is doing right now and whether everything is in order — clearly, honestly and without jargon. Every value explained with a tap.

Download on theApp Store See what it does

Free · iPhone, iPad & Apple Watch · English and German

2016
On the App Store since
16
Hardware tests in the Check-up
0
Bytes about your device uploaded
The Overview tab of System Guard: iOS version, storage, memory, thermal state and battery of an iPhone 16 Pro.
Features

Everything about your device, in one place.

Only what Apple makes available to every app — read live, laid out clearly, and explained in plain language.

Live monitoring

CPU load, memory and storage as live charts. Thermal state, Low Power Mode and battery at a glance. Every value opens its explanation — what it is, and whether it matters.

Every detail of your device

Model, chip, GPU, memory, display, cameras, sensors, biometrics. iOS version and build — and whether a newer version is available for your exact model.

Battery health

Cycle count and real capacity of your iPhone, iPad and Apple Watch, read from the analytics file iOS writes every night. Share the file from Settings straight to System Guard; only the battery figures are kept, on your device.

History and alerts

Free storage, memory and heat over weeks, so you can see what is filling up and when the device runs warm — and a notification before you run out of room or when a new iOS is out. With System Guard Pro.

Network

Connection type, local and public IP, Wi-Fi details, VPN, DNS servers, cellular technology and data traffic by day. A speed and latency test, and the devices on your local network.

Widgets, Watch and Shortcuts

Home and Lock Screen widgets, Control Center controls, an Apple Watch app with complications, and Shortcuts actions for your automations.

Private by design

No account. Nothing about your device is uploaded — not the model, not the addresses, not the test results, not your battery figures. Read the privacy policy.

Hardware check-up

Sixteen tests,
one verdict.

Made for buying or selling a used device: each test shows an instruction, you judge what you see, hear or feel, and the app records your answer.

  • Display, touch, sound, haptics. Solid colors for dead pixels, a touch grid, a tone per speaker, a level meter, three taps from the Taptic Engine.
  • Sensors, cameras, biometrics. Motion sensors, barometer, compass, GPS, Bluetooth, proximity, a live preview per lens, Face ID or Touch ID.
  • A report you can hand over. The results and every device detail as PDF, text or JSON — with System Guard Pro.
See the screenshots
16/16

Passed

75%

Storage used

System Guard app icon

One purchase removes the ads.

System Guard is free with ads. System Guard Pro — one purchase, no subscription — removes them and unlocks the full check-up and its report, the network tools, History and alerts, every widget and the remaining Shortcuts actions. Bought the ad-free upgrade years ago? It is still yours: tap Restore Purchases.

Download on theApp Store
Support

Got a question?

Send us a message and we'll reply as soon as we can. Bug reports, feature requests and general questions are all welcome — the FAQ answers the common ones.

  • We reply straight to the address you enter.
  • Quicker still: More › Send feedback in the app attaches the device report, so we can answer without asking.