Hide strange unwanted Xcode logs

Try this:

1 - From Xcode menu open: Product > Scheme > Edit Scheme

2 - On your Environment Variables set OS_ACTIVITY_MODE = disable

Building on the original tweet from @rustyshelf, and illustrated answer from iDevzilla, here's a solution that silences the noise from the simulator without disabling NSLog output from the device.

1. Under Product > Scheme > Edit Scheme... > Run (Debug), set the OS_ACTIVITY_MODE environment variable to ${DEBUG_ACTIVITY_MODE} so it looks like this:

2. Go to your project build settings, and click + to add a User-Defined Setting named DEBUG_ACTIVITY_MODE. Expand this setting and Click the + next to Debug to add a platform-specific value. Select the dropdown and change it to "Any iOS Simulator". Then set its value to "disable" so it looks like this: