System Guard can shows detail information about your iDevice. It shows the hardware spec, system run-time info, sensor data, and network status. You can also e-mail the report as plain text and Excel file (.xlsx) for backup or sharing with friends.

If you do not need so many features now, you could buy Lite version (System Guard Lite), and upgrade your Lite version by in-app purchase later.

Please see more screenshots in

System Guard starts with summary page. The summary page could let you know device status quickly, it provides you a simple UI for memory usage, disk usage, battery status, CPU utilization, and process list. If you need to investigate detail, please go to other pages to see detail items.

Recording (also works in background mode) :
1. CPU Utilization, Memory Usage, Data Traffic - Record system run-time info and export as xlsx file. (background mode only up to 3 minutes in iOS 7)
2. GPS track - Record GPS signal and export as KML, GPX, and xlsx formats.
3. Core Motion - Record Core Motion and Device Motion events, then export as xlsx format and analysis in PC. Core Motion event includes gyroscope rotation rate, accelerometer, magnetometer. Device Motion event includes roll, pitch, yaw), quaternion, rotation rate, gravity, user acceleration. The sampling rate is adjustable for experiment.

OS System Info:
1. The usage of memory - RAM chip size, free memory, wired memory, active memory, inactive memory, other memory (ex GPU), page in/out/fault.
2. Disk information - every mounted disks info: total space, free space, block size, filesytem, mount point, mount flags
3. System loading - average loading, mach factor, CPU utilization(average and per core)
4. Kernel info - OS Type, OS Release, OS Revision, Version
5. boot time, uptime, system name, system version, time zone, locale language

Network Status:
1. WiFi and Cellular - WiFi's SSID, BSSID, AP vendor, Cellular's carrier name.
2. Data traffic - data rate for each interfaces. TCP, UDP, IP packet count
3. TCP/UDP connections - all TCP and UDP connections, include listening port. For active connection, it shows TCP state, local IP:port, remote IP:port, TX/RX data size. You can also get the IP geolocation.
4. Routing table - all routing entries in routing table, destination IP, gateway, interface, routing flags, use count, reference count, expire time. You can also get the IP geolocation.

Device Info:
1. Battery - level, is charging, is plugged power
2. Audio - output volume, input volume, any app playing audio, microphone and headphone status, current input device and output device, sampling rate
3. Display - resolution, brightness, external display count.
4. Camera - flash, torch, low light boost, focus mode, exposure mode, white balance mode
5. GPS - latitude, longitude, altitude, accuracy in both horizontal and vertical
6. CoreMotion - gyroscope rotation rate, accelerometer, magnetometer. The iOS processed device motion result: (roll, pitch, yaw), quaternion, rotation rate, gravity, user acceleration, magnetic field with simple 3D graph. Activity and step count in iOS 7.

Hardware Spec:
1. CPU - CPU family, number of core, L1/L2 cache size,
2. GPU - GPU vendor, OpenGL version, OpenGL extension, OpenGL limitation
3. Device Compatibility - the device features to ensure your iDevice can support App's requirement.
4. device model, hardware machine, hardware model, application processor, flash size, ram size

* Today Widget (iOS 8 only)

SystemToday provides rich information in Notification Center:
1. CPU utilization,
2. system loading,
3. free memory size,
4. free storage size,
5. WiFi/Cellular data rate.

* Continued use of GPS running in the background can dramatically decrease battery life.

What's New

Version 1.7.6

Fix crash in iOS 6

Ratings and Reviews

Excellent App

Josh Skidmore

I don't write a lot of reviews (I probably should), but SystemGuard is excellent and warranted my time. The app gives you a very low-level, no-BS view of what's going on with an iOS device - like cpu, memory and network traffic. The invaluable "recording" feature allows you to monitor/record resource usage while using other apps (it runs backgrounded for up to around three or four minutes). Combined with iOS 9's slide functionality on iPad, you can accurately pin down which apps are eating your resources (and killing your battery life). I hope the author continues development as they have been because this is a wonderful app. My only minor complaint is that some of the UI views (like graphing and table layout) could use some polish, but this isn't the core functionality of the app.

Amazing app!


Helped me diagnose system troubles! Best all around systems monitoring app available today... NOTE- iOS 9 does not allow apps to list running processes, but this app has so much more valuable information available to it that it is still worth it!

System Guard


I would recommend this app to anyone wanting to keep up with their phone systems and status. Works with no problems like it should.


Jiang Ming Xian
11.1 MB
Requires iOS 6.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, Catalan, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hungarian, Indonesian, Italian, Japanese, Korean, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Traditional Chinese, Turkish
Age Rating
Rated 4+
This app may use your location even when it isn't open, which can decrease battery life.
© 2013, 2014, 2015, Jiang Ming Xian


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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