How to delete duplicate photos on iPhone (and what Apple’s tool misses)

Start with Apple’s built-in Duplicates (it’s free)

On iOS 16 and later, open Photos › Albums, scroll to Utilities, and tap Duplicates. iOS lists photos it considers identical and offers a one-tap Merge that keeps the highest quality version and removes the rest.

It runs on-device and costs nothing, so always do this pass first. Merged items still go to Recently Deleted, so it’s safe.

What Apple Duplicates does not catch

Apple’s tool only finds exact duplicates. It ignores the much bigger problem: near-duplicate bursts (twenty almost-identical shots of the same moment), blurry or low-quality frames, big forgotten videos, and old screenshots. Those are where the real gigabytes hide.

It also won’t decide which of nine similar photos is the keeper — you still do all of that judgement by hand.

Clear near-duplicate bursts: keep the best, drop the rest

Open a burst or a run of similar shots and pick the sharpest, best-exposed frame; delete the rest. Doing this by hand across a full library is the tedious part most people quit on.

Kept automates exactly this: it clusters near-duplicates, surfaces the single best shot with a reason (“sharpest of 9”), and you confirm with a swipe. It learns your taste as you go, all on-device.

Apple Duplicates vs. manual vs. Kept