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To download System Lens from the Mac App Store, you need a Mac with OS X 10.6.6 or later. Learn More.

System Lens

By Aaron Ng

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System Lens is a simple way to quickly manage tasks and resource usage on your Mac.

- Easily check your system usage at a glance from the status bar.
- See which applications are heavily using resources.
- Quickly end programs you no longer want running.
- Highly customizable.

Heavy resource usage can sometimes cause your Mac to get warmer, slower and sometimes even cause your battery to drain faster.

System Lens sits quietly in your Menu Bar and periodically updates itself to display the amount of resources being used by your Mac.

Click on the Menu Bar icon to bring up the System Lens panel which sorts all of your running applications by their amount of resource usage. From here, you can decide which applications you don't need open anymore and close them right from the Menu Bar. (Just make sure you save first!)

System Lens is also feature packed: set filters, custom usage thresholds, customize your results and more!

Learn more at

Need support? Visit us at or tweet us at @systemlens.

Feel free to follow or tweet me (the creator, Aaron) directly at @aaronykng and follow @delve for future app updates!

What's New in Version 2.61

- OSX 10.10 Compatibility Update


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Customer Reviews

not bad, but concerned for the future

System lens is a handy glance at CPU-eating programs, but recently I have had issues with it. I just noticed it was taking up over 1GB of my system memory, and thus ironically causing performance problems. I looked to the developer for support, but their website is a blank page and “support” just leads to a twitter feed. I am concerned about the viability of this product, and will uninstall it to prevent system issues. We will see if the developer comes back to update or better support this product.

Good at what it does

I wouldn’t call this little app a must-have on a mac with plenty of resources, but when things are tight, it’s much handier to click on it than to wait for Activity Monitor to load under such conditions. The less RAM you have, the more System Lens is probably your friend.

Cool little app

This little app is cool and handy for checking out resource usage at a glance. I would however suggest for it to have an indication of when it was last updated, because I find myself wondering about that and regularly clicking it to see if it does something. It would also be nice if it would refresh when clicked, or some other manual way of doing that. Other than that, it’s pretty cool.

System Lens
View in Mac App Store
  • $1.99
  • Category: Utilities
  • Updated:
  • Version: 2.61
  • Size: 7.6 MB
  • Language: English
  • Seller:

Compatibility: OS X 10.10 or later, 64-bit processor

Customer Ratings

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