If applications cannot be blocked

TripMode allows you to control and block most applications on your computer but there are some cases where programs cannot be blocked, in particular some System programs are essential for the correct operation of your computer. Blocking those would essentially lock yourself our of the system or cause instability, this is why they are not visible in TripMode’s applications list. Their traffic is still counted in the total shown at the bottom of the main window.

Note: On macOS Big Sur before version 11.2, Apple enforced a policy that bypassed any filtering for some system applications. You need to update your Mac to version 11.2 to get rid of this limitation.

If your app is present in the list but blocking it seems to have no effect, you may be using a webfilter or local proxy. Those programs act on behalf of your app and do the network requests in their stead so they are effectively the application generating all network traffic and they are the applications that must be blocked.


If you think a specific app should be blockable but does not appear in TripMode’s list, use our support page to contact us with the details of your app.