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System Activity Monitor app for iPhone and iPad


4.8 ( 3568 ratings )
Utilities Productivity
Developer: Recession Apps LLC
1.99 USD
Current version: 3.4, last update: 7 years ago
First release : 26 Mar 2009
App size: 4.13 Mb

*** Thank you for your support of Recession Apps. We will be ending all support and sales of all our apps as of March 18, 2017.

Now with support for the Apple Watch.
View the available memory and battery level of your iPhone on your Apple Watch.

Now with Dark Mode, Ping and WhoIs!

"The combination of crash reports provided by the iPhone and System Activity Monitor helped me determine that I had an issue with contact syncing that caused my iPhone to drain with alarming rapidity." - http://www.macworld.com/article/1163200/troubleshoot_iphone4s_battery.html

"This App is similar to the Mac OS Activity Monitor in that it shows you in real time which apps or processes are running and more importantly which ones are running with high amounts of processor time. If youre not playing a game or doing something else that would task the processor then your device should be running with the majority of the processor count in "idle." If its not, you can quickly identify which App or process is causing a problem.

I highly recommend System Activity Monitor as a troubleshooting tool!"
- http://www.bestappsite.com/tag/system-activity-monitor/

"System Activity Monitor is simple and it works quite well, without any frills or flashy graphics." - http://www.appsafari.com/utilities/17457/activity-monitor-iphone-apps-useful-for-solving-iphone-4s-battery-life-issues/

"5 STARS!!!
This the first rating I have ever given because this app gave me my IPAD back. it was crashing all the time until I purchased this app."

System Activity Monitor (TM). Its like the Activity Monitor on your Mac but for your iPhone.

You can view:
- Runtime (RAM) memory usage
- Storage (Disk) usage
- All running processes (iOS 8 and earlier only)
- CPU usage
- WiFi and cellular IP addresses
- Device information
- Ping network information
- Whois domain registration information

Memory types:

Available (free) memory
This memory is not being used currently

Wired memory
This information cant be moved to disk, so it must stay in RAM. The amount depends on the applications you are using.

Active memory
This information is currently in RAM and has recently been used.

Inactive memory
This information has not recently been used but will remain in RAM until another application needs more memory but no available memory is available. If called upon by a process, this is quickly changed to Active memory; if it has been swapped to the hard disk, it will be moved back to RAM and marked as Active.

Page ins / Page outs
"Page ins/outs" refers to the amount of information moved between RAM and the hard disk. This number is cumulative amount of data that iPhone OS has moved between RAM and disk space.

Pros and cons of System Activity Monitor app for iPhone and iPad

System Activity Monitor app good for

The first 2-3 times you want to start the program it froze but next time its perfectly running Im using an iPhone and it works properly exactly does what it says. And its good to know what pourcentage of the battery ;) great app worth 2.99$
Works like a charm. Would be nice to have the ability to force quit a specific app or process, but thats not a big deal.
this app is incredible, i never had any problems with it. Its awsome, but it would be a little better with a terminal in it so we could kill apps that stays in the background, and a backgrounder would be great too!
The user interface is pretty simple and pleasing to the eyes. some things to point out is that the pie graph does look off little, but thats my nit pick. overall, i did test the "free memory" button and it did work and i checked other apps that displayed my memory and it looks like it was doing its job. havent tried to "kill all apps" yet. there was a "do it on your own risk" so i wasnt sure if i should just to test the memory data. One thing i noticed is that my space utilized and free are both little off. i did the readings on what itunes showed and compared that to the app. nonetheless, I would use this app to help me free RAM and to see the inside workings of my iPhone 3GS
Good app The free memory on start up doesnt work for me Otherwise its good
Bought this app a long time ago but just got around to reviewing it. Works great, good to see whats running and be able to close them withought restarting. Thanks for saving my battery life, well worth the money.

Some bad moments

Batery status time information does not Work well On iPhone 4.
This latest version doesnt free memory enough on IPad 2. Its working properly only on iPhone.
Youre not able to see which app uses how many CPU time. But in app description this feature is listed.
Could not get it to launch using wi-fi connection. Had to switch it off and connect using 3G network. After launch switched back to wi-fi and app crashed again. After relaunching once more seems to work ok. The support link in this review page does not work.
Looks pretty , but is pretty useless ! There are no expanations to any of the kinds of memory. Some of them look made up from thin air just to take up space in the pie chart. I explored it completly and my iPhone allready has a battery level indicator and my iPhone comes with an Id number and a model and an IP # . the only thing different is a cute little moving bar graph which I still have to find a use for it. Maybe with some explanations for some of this stuff it might have some superficial use. This app doesnt really have any substance. Its like a bunch of nothing collected together to sell as an APP. For 2.99 this is a RIP-OFF !!!! If I "could" get my money back I would gladly delete this stupid app. The only reason I havent deleted this app yet is so I can have access to the reviews so I can warn suckers like me not to buy this crap app. This app was designed for one purpose only and that is to remove 2.99 $ from your pocket and to put it in theirs.
Sadly, the Free Memory function does not appear to work with ios 4.0. In trying to free memory it seems to go through the motions but never frees any memory.