If you find the folder for iOS simulator instances: ~/Library/Developer/CoreSimulator/Devices/
uses too much storage, you can delete some of these files in this way:
- List the simulators’ IDs
xcrun simctl list devices - Delete simulator by ID
xcrun simtrl delete SIMULATER_ID
Note: if there is error saying simctl is not found, you can specify its full path, e.g. xcrun /Applications/Xcode.app/Contents/Developer/usr/bin/simctl list devices