Your iPhone tells you the storage is full, but Photos and Apps only account for maybe half of what it says you're using. The rest sits under a category Apple has helpfully labelled "Other" — the single least descriptive label in modern computing.
Here's what "Other" actually is, and the safe order to clear it in without losing anything you care about.
1. Reboot the phone (yes, just that)
A cold restart clears a surprising chunk of "Other" — mostly cached system files, background app data, and iOS working memory that never got flushed. Hold the side button plus volume-up until you see the power slider. Slide to power off, wait ten seconds, hold side button again to boot.
On the three phones we tested this on, a fresh reboot reclaimed between 1.4 GB and 4.8 GB with zero downside. Do this first, before any of the more involved steps below.
2. Clear Safari's website data
Settings → Safari → Clear History and Website Data. This wipes your browser cache, cookies from every site you're logged into, and cached copies of pages. Safari data alone can hit 2–3 GB on a phone that browses regularly.
Heads up: you'll be logged out of every website. Worth it.
3. Delete downloaded Messages attachments
Settings → General → iPhone Storage → Messages. Scroll down to see attachments broken out by type: photos, videos, GIFs, "other". Delete the largest attachments from old conversations you'll never scroll back through.
This is usually the single largest contributor to "Other" storage on any iPhone more than a year old. Family group chats and school WhatsApp threads are the worst offenders.
4. Turn on "Offload Unused Apps"
Same iPhone Storage screen. Scroll to Offload Unused Apps and enable it. iOS removes the app binary for anything you haven't opened in a while, but keeps your data and settings so it comes back seamlessly when you reinstall.
For phones with 30+ apps most of which get opened twice a year, this is a permanent 3–5 GB saving that doesn't cost you anything meaningful.
5. Switch Camera to "High Efficiency"
Settings → Camera → Formats → High Efficiency (HEIF/HEVC).
This doesn't shrink existing photos, but every new photo you take will be roughly half the file size with no perceptible quality loss. Videos too — HEVC is significantly more efficient than legacy H.264. If your storage crisis keeps repeating, this is the fix.
Rule of thumb: on a 64 GB iPhone in 2026, no amount of cleanup will fully solve the storage problem. Backup, wipe, and restore is the cleanest cure — but plan an evening for it and use the Bolt for Business-style approach to time-box it.
6. Delete downloaded podcast episodes
Podcasts app → Library → Downloaded. Delete anything you've already listened to. In Podcasts app settings, set auto-delete to "After Played" so this never accumulates again.
Same story with Spotify's downloaded playlists, Netflix downloads, Apple TV downloads, and Kindle books — all of these silently pile up under "Other" if you don't clean them.
7. Empty the Recently Deleted photo album
Photos → Albums → Recently Deleted → Delete All. Photos you delete hang around for 30 days by default — still taking up your storage.
If you regularly delete large batches of photos, do this immediately after each purge instead of waiting a month.
8. Backup, wipe, restore (the nuclear option)
If the previous seven steps haven't got you to enough free space, the only reliable fix is:
- Full iCloud or computer backup (Settings → General → Transfer or Reset iPhone → check backup first).
- Settings → General → Transfer or Reset iPhone → Erase All Content and Settings.
- Set the phone up as new, then restore from backup during setup.
This reclaims 5–15 GB of accumulated system cruft on any phone older than two years. Plan an evening for it and make sure everything backed up first.
The one-time settings that stop it coming back
Once you've reclaimed the space, three settings prevent the pile-up from restarting:
- Camera format: High Efficiency (step 5)
- Offload unused apps: on (step 4)
- Podcasts auto-delete: After Played (step 6)
Set these once and your storage stays sane for months at a time.
Still stuck?
If your iPhone storage still doesn't add up after all eight steps and you'd rather have a human dig through your Settings live, book a 30-minute session and we'll fix it on a screen share. From $29 flat.
How we tested for these mobile picks
Every recommendation in this guide was tested on real, personal iPhones (not review units) for at least 30 days. Testing spanned multiple iPhone generations (iPhone 13, 14, 15, 16) to make sure our advice holds across the current install base — not just the newest hardware.
For accessories specifically, we tested each product through common failure conditions: repeated drops from 3-4 feet, hot car interiors, cold winter mornings, months in the same crowded bag. Marketing photos don't reveal which cases fray, which cables develop connector issues, or which chargers overheat under sustained load. Our recommendations reflect what survived, not what tested best in week one.
Related mobile guides
- 8 iPhone storage fixes when "Other" is eating your space — the safe order to clear it in.
- 8 iPhone accessories under $50 that are actually worth buying — our tested shortlist.
- 7 best password managers for families — every family member's phone included.
Common phone questions we get
Should I upgrade every year or every three years?
Every three years for most people. Modern iPhones (14+) are genuinely fast enough for another 2-3 years of typical use. The camera improvements year-over-year are usually the only meaningful upgrade, and even those plateau after year three.
What's the best case for daily use?
Slim TPU with raised bezels and MagSafe support. Spigen Ultra Hybrid MagSafe is the go-to. Apple's own Silicone Case if you don't mind the price.
Do iPhones need cleaning apps or optimizers?
No. Third-party "cleaner" apps do very little that iOS doesn't already do automatically, and they burn battery running background scans. If storage is full, follow our iPhone storage guide instead.