How to Free Up Storage on an iPhone

30-second preflight — all three checks must be YES.

Phone unlocked · battery okay · know Apple ID if Offload asks · optional backup note.

A locked screen or empty battery stops you mid-cleanup — and knowing your Apple ID keeps Offload prompts from feeling like a dead end.

1. Phone unlocked? You can open Settings without Face ID or PIN blocking you mid-tap.
2. Battery okay? Above roughly 20%, or plugged into a charger for the whole cleanup.
3. Apple ID ready? Know Face ID / Touch ID or your password if Offload or iCloud asks to confirm.

All three checks are YES — unlocked phone, enough power, and sign-in ready if asked.

All YES? Continue to Step 1. Optional: if Photos are irreplaceable and you have never backed up, make a computer or iCloud backup first.

Open Settings → General → iPhone Storage.

Settings → General → iPhone Storage · colored bar at the top of the screen.

This is Apple’s official storage map — guessing which app is huge without this screen wastes time and often deletes the wrong thing.

1. Open the gray Settings app on your Home Screen.
2. Tap General, then tap iPhone Storage.
3. Wait until you see the colored storage bar near the top (even if numbers are still calculating).

You are on the iPhone Storage screen and can see the colored bar.

Bar never appears or categories spin forever? → Not loading.

Wait for usage categories and the app list to finish loading.

Stay on the screen · categories + app sizes appear · do not lock the phone yet.

iOS calculates sizes in the background — leaving early looks like “Storage is broken” when it only needed another minute on Wi‑Fi.

1. Keep iPhone Storage open for up to a few minutes on Wi‑Fi if sizes still show Calculating…
2. Confirm you can see categories (Apps, Photos, Messages, System Data, and others) and a scrollable app list.
3. If the spinner never stops after several minutes, use the not-loading branch before deleting anything.

Categories and the app list show real sizes (not endless Calculating…).

Still stuck on Calculating… after a restart? → Not loading.

Read Recommendations (Offload Unused Apps and related tips).

Scroll to Recommendations · note Offload Unused Apps and any photo or review tips shown.

Recommendations are Apple’s shortest path to reclaim space — skipping them often means deleting something harder than needed.

1. Scroll just below the storage bar to the Recommendations section (if your iOS version shows one).
2. Read each tip once — especially Offload Unused Apps and any Photos review suggestions.
3. If Recommendations are empty, skip ahead — you will still free space from the app list in later steps.

You know which Recommendations apply (or confirmed none are listed).

Enable or use Offload Unused Apps if it is offered.

Enable Offload Unused Apps · or Offload one unused app from Recommendations / the app list.

Offload removes the app binary but keeps documents and data — a safer first reclaim than Delete when you might reopen the app later.

1. If Offload Unused Apps appears, tap Enable (or follow the on-screen Enable control).
2. Or open one unused large app in the list → tap Offload App → confirm.
3. Note: opening an offloaded app later re-downloads it — that is expected, not a failure.

Offload Unused Apps is enabled, or you offloaded at least one unused app.

Offload freed little? That is normal when documents are large — use Delete on apps you truly do not need in Step 5.

Review the largest apps; delete or offload one you do not need.

Open a large unused app → Delete App or Offload App · confirm · watch free space rise.

A few multi‑gigabyte games or streaming apps often free more space than dozens of tiny utilities.

1. Scroll the app list and tap one of the largest apps you do not use (games, old banks, duplicate shoppers).
2. Choose Delete App if you are sure, or Offload App if you want documents kept — then confirm.
3. Return to iPhone Storage and glance at Available / the free end of the bar.

At least one large unused app is deleted or offloaded, and free space looks higher.

Clean Photos — delete obvious videos, then Empty Recently Deleted.

Delete large videos you do not need · then Albums → Recently Deleted → Delete All / Empty.

4K videos and bursts fill Photos fast — but deleted items sit in Recently Deleted for about 30 days until you Empty them.

1. From iPhone Storage, tap Photos (or open the Photos app) and delete long videos or obvious duplicates you do not need.
2. Open Albums → Recently Deleted → select items or use Delete All / Empty as labeled.
3. If free space barely moved after delete, empty Recently Deleted before trying anything else.

You removed media you do not need and emptied Recently Deleted (or confirmed it was already empty).

Space unchanged after emptying? → Recently Deleted. Afraid of losing cloud originals? → Photos & iCloud.

Clear Safari History and Website Data (if you are comfortable).

Settings → Safari → Clear History and Website Data · confirm when ready.

Website caches and offline data quietly grow under Safari — clearing them often frees hundreds of megabytes without deleting apps.

1. Open Settings → tap Safari.
2. Tap Clear History and Website Data, then confirm.
3. Skip this step if you are not ready to sign back into some websites afterward.

Safari history and website data are cleared, or you chose to skip this step on purpose.

Optional pass: Messages attachments or large Mail data.

Still tight? Review Messages / Mail in iPhone Storage · remove large threads or downloads you do not need.

Years of photo texts and big email downloads often rival Photos for space — but only clean what you recognize.

1. Return to Settings → General → iPhone Storage and check whether Messages or Mail is still large.
2. For Messages: open a huge conversation and delete attachments or the whole old thread if you do not need it.
3. Skip if free space is already enough for your Update — do not delete mail you may need later.

You either trimmed Messages/Mail or confirmed space is already enough without touching them.

Restart the iPhone, then reopen Storage to confirm free space.

Power off → on · Settings → General → iPhone Storage · Available (or free end of the bar) higher than before.

A restart finishes deferred cleanup jobs — Storage numbers often look clearer after the phone wakes again.

1. Power the iPhone fully off, wait 10 seconds, then turn it back on and unlock.
2. Open Settings → General → iPhone Storage again and wait for the bar to finish loading.
3. Compare Available / free space to what you saw in Step 1 — it should be higher.

Free space increased (or clearly looks roomier on the storage bar).

If still full: Optimize iCloud Photos or delete more large media.

Space OK → stop · still full → Optimize iPhone Storage (iCloud Photos) or delete more large videos.

Optimize keeps full-resolution originals in iCloud and lighter versions on the phone — different from Delete forever.

1. If Updates install and Available looks fine, stop — you are done.
2. If still tight and you use iCloud Photos: Settings → [your name] → iCloud → Photos → turn on Optimize iPhone Storage.
3. Or return to Photos and remove more long videos you truly do not need — see the iCloud branch first if you feel unsure.

You either have enough free space, or you have a clear next plan (Optimize or more media cleanup).

Unsure whether Optimize deletes originals? → Photos & iCloud.