If you want to avoid monthly fees, you can use external drives that plug directly into your iPhone's port (Lightning or USB-C). How To Buy Storage On iPhone?

: Use the "Optimize iPhone Storage" setting ( Settings > Photos > Optimize iPhone Storage ) to store full-resolution photos in iCloud while keeping smaller versions on your phone.

: Typically start at 50GB for $0.99/month, with options up to 12TB for higher fees.

While you cannot technically upgrade the physical internal storage of an

: Go to Settings > [Your Name] > iCloud > Manage Storage > Buy More Storage . 2. External Accessories (Physical Storage)