Find the real storage problem
Start in Settings → General → iPhone Storage. Look at the categories and the list of apps before deleting anything. A full camera roll may be the main cause, but downloads, messages or another app can also be responsible. Apple’s storage guide explains where to find the breakdown and recommendations.
If Photos is high on the list, make a small plan: first remove obvious throwaway captures, then review videos, then compare duplicate or similar photos. You do not need a new subscription to begin.
Start with easy-to-replace items
Open Photos → Collections → Media Types → Screenshots. Look for old delivery updates, temporary codes, accidental captures and duplicate receipts. Save any information you still need before selecting items to delete. Our bulk screenshot guide walks through the selection step.
Next, open the Videos collection. A few long clips can use more space than hundreds of ordinary photos. Open a clip and tap the Info button or swipe up to check its file size; Apple documents file size in photo and video information. Keep the videos that are difficult to replace.
Deal with duplicates and similar photos differently
Photos has a Duplicates collection under Utilities when it has found matches. Review each group before tapping Merge. Similar photos from a burst are a different decision: choose the sharpest or most meaningful frame yourself. See our duplicate photo guide for that distinction.
For a large library, work in ten-minute sessions. A short review you can repeat is safer than selecting a year of photos at once.
Understand what deletion and iCloud do
When iCloud Photos is enabled, deleting an image in Photos also deletes it from other devices signed in to the same Apple Account. Deleted items stay in Recently Deleted for 30 days; recover anything you chose by mistake before that window closes. Apple explains this in its delete and recover guide.
Optimize iPhone Storage can keep smaller device copies while full-resolution originals live in iCloud. Check your available iCloud storage first: a larger iCloud plan may cost money. It is an option, not a required cleanup step. If you prefer a completely free approach, start with the storage review above and keep a verified backup of irreplaceable files.
Make the next cleanup easier
After an event, choose favorites while the moment is fresh. Once a week, clear one-time screenshots and review a few videos. Swyper offers a full-screen photo feed and a review bin for deliberate cleanup; it is free for 15 deletes a day, while unlimited deletes and its duplicate finder are Premium. Apple’s built-in tools are a good first step.