Delete unused apps
Offload unused apps
Clear Safari history and website data
Remove old messages and large attachments
Delete duplicate photos and videos
Enable iCloud Photos and optimize iPhone storage
Back up photos and videos to cloud storage
Delete downloaded music, podcasts, and movies
Remove offline files from apps like Files, Maps, and streaming apps
Clear app caches where possible
Review and delete large files in the Files app
Empty the Recently Deleted album in Photos
Delete old email attachments
Update iPhone to the latest iOS version
Restart the iPhone after cleanup