
In short
To free up storage, first check what is using it: on iPhone go to Settings, General, iPhone Storage [1]; on Android open Settings, Storage [5]. Then offload or archive unused apps, which keeps their data [1][6], remove backed-up photo copies [3][7], clear downloads and caches, and remember deleted photos stay in a trash for 30 days [4][8].
Key takeaways
- iPhone: Settings > General > iPhone Storage shows recommendations and per-app usage [1].
- Android: Settings > Storage > Free up space lists files and apps you have not used recently; some steps need Android 14 or later [5].
- Offloading an iPhone app or archiving an Android app frees the app's space but keeps its data [1][6].
- With iCloud Photos, Optimize iPhone Storage keeps full-resolution originals in iCloud and space-saving copies on the phone [3].
- Deleting a photo with iCloud Photos or Google Photos sync removes it from your other synced devices too [4][8].
- Deleted photos sit in Recently Deleted or Trash for 30 days, so space may not return until that empties [4][8].
- On Android, Clear cache removes temporary data, while Clear storage permanently deletes all of an app's data [5].
On this page 12 sections
- How do you free up storage on an iPhone or Android phone?
- What is using my phone's storage?
- How do you free up space on an iPhone?
- How do you free up space on an Android phone?
- What happens to my photos when I free up space?
- Which cleanup option should you choose?
- How do you stop messaging apps filling your phone?
- What are the risks and limits of freeing up storage?
- Common mistakes
- Frequently asked questions
- Glossary
- Sources
How do you free up storage on an iPhone or Android phone?
The fastest route is the same on both systems: see what is taking space, act on the built-in recommendations, then deal with the largest categories, which Apple's and Google's guides list as photos, videos, apps, messages and downloads [2][5].
- Check usage. On iPhone, open Settings, tap General, then tap iPhone Storage to see recommendations and a list of apps with their storage use [1]. On Android, open Settings, tap Storage and select a category [5].
- Use the built-in recommendations. On iPhone, tap Show All in the storage screen, read each recommendation and tap Enable or review the items it suggests deleting [1]. On Android, tap Storage, then Free up space, to pick from photos, videos and apps you have not used recently [5].
- Remove or offload apps you rarely use. An offloaded iPhone app keeps its documents and data [1]; an archived Android app keeps its icon and data [6].
- Move photos and videos to the cloud or a computer, then remove the local copies only after you have checked they are backed up [3][7].
- Delete downloads you no longer need, such as watched offline videos and music downloads [2][5].
- Empty the photo trash if you need the space immediately; items stay there for 30 days otherwise [4][8].
Before deleting anything you value, make sure it is backed up. Apple advises backing up the photos and videos you want to keep before you delete [4], and Google says the same before using its free-up-space feature [7].
What is using my phone's storage?
On iPhone the storage screen groups usage into categories. Apple lists Apps (including Safari downloads and files kept on the device), Photos, Media (music, videos, podcasts, ringtones and voice memos), Mail, Apple Books, Messages and attachments, and iCloud Drive files downloaded to the device [1]. Two categories need explanation. Other covers non-removable items such as Siri voices, fonts, dictionaries, logs, caches, the Spotlight index and system data like the Keychain; System is the space taken by the operating system and varies by device [1].
You cannot directly delete most cached files on iPhone, and you do not need to: Apple says the device removes cached and temporary files itself when it needs space [1]. When a phone is low on space, iOS also frees room by removing items you can download again, such as unused apps and temporary files [1].
On Android, Settings shows storage by category [5]. Google draws a useful distinction: storage is where data such as music and photos is kept, while memory (RAM) is where programs such as apps run [5]. Freeing storage makes room for files and app installs; it is not the same as closing apps, which Google says you usually do not need to do [5].
How do you free up space on an iPhone?
Offload or delete apps
Tap an app in iPhone Storage to see its details. Offload removes the app but keeps its documents and data; Delete removes the app and its related data [1]. To let the phone do this automatically, open Settings, tap Apps, tap App Store and turn on Offload Unused Apps; the icon stays on the Home Screen with a cloud symbol, and tapping it reinstalls the app [2].
Optimise photo storage
By default iPhone keeps photos and videos in their original high-resolution form, which uses a lot of space [3]. With iCloud Photos turned on, Optimize iPhone Storage stores full-resolution photos and videos in iCloud and keeps space-saving copies on the device when needed; it is on by default when you use iCloud Photos [3]. The catch is cloud capacity: every iCloud account gets 5 GB free, and more requires an iCloud+ plan [3].
Clean up duplicates, messages and downloads
- In Photos, the Duplicates album under Utilities lets you merge duplicates; the extra copies move to Recently Deleted [4].
- Delete conversations and attachments you no longer need in Messages, and remove videos already watched in the TV app and other streaming apps [2].
- Find and delete unneeded files in the Files app [2].
- Content synced from a computer cannot be removed on the iPhone itself; deselect it in the Finder, the Apple Devices app or iTunes and sync again [1].
Deleted photos go to the Recently Deleted album and are permanently deleted after 30 days [4]. To reclaim space sooner, open Recently Deleted under Utilities and delete items from there, knowing they cannot then be recovered [4].
How do you free up space on an Android phone?
Menus differ between manufacturers, but Google's own steps cover most phones running recent Android versions [5].
Use Free up space and Smart Storage
Open Settings, tap Storage, then Free up space. Scroll to a category, tap Select files, choose what to remove and tap Move files to Trash [5]. To clear backed-up photos and videos automatically when storage is almost full, open the menu in Free up space, tap Settings and turn on Smart Storage [5]. Google notes some of these steps work only on Android 14 and later [5].
Uninstall or archive apps
If you uninstall an app and need it later, you can download it again without paying again for a paid app [5]. On Android 15 and later, Archive (Settings, Apps, choose the app) removes the app's software, permissions and temporary files but keeps its icon and data; you restore it by tapping the dimmed icon, provided the app is still available in the store [6]. If you opt into automatic archiving in the Play Store, you can stop it for a specific app by turning off Manage app if unused [6].
Clear cache, carefully
In Settings you can usually clear an app's cache and data. Clear cache deletes temporary data, and the app may open more slowly next time; Clear storage permanently deletes all the app's data, so Google suggests deleting data inside the app first [5].
Remove photo copies and downloads
If you back up with Google Photos, open the app, tap your profile picture and choose Free up space on this device; it shows how much space will be freed before deleting the device copies [7]. Photos and videos fewer than 30 days old may be kept on the device [7]. For downloads, remove them in the app that created them; Google gives steps for Google TV and YouTube Music [5]. You can also copy files to a computer over USB and then delete them from the phone [5].
What happens to my photos when I free up space?
Photos need the most care, because cloud photo services sync deletions.
- iCloud Photos: deleting a photo or video on one device deletes it on all other devices signed in with the same Apple Account [4].
- Google Photos: items you delete are also removed from Android devices, iPhones and iPads with Google Photos installed and backup on, from albums and shared albums [8]. They are not automatically removed from Blogger, Drive, Gmail or YouTube [8].
- Free up space in Google Photos is different: it removes only the device copies of items already backed up, which you can still see in the app and on the web when you are online and signed in [7]. You will not see them in the phone's built-in gallery app or offline [7].
Both services keep deleted items for 30 days: in Apple's Recently Deleted album [4] and in the Google Photos trash [8]. If Google Photos prompts you to delete permanently, your trash is full [8].
Will moving photos to the cloud just fill my cloud storage?
Possibly. Each Google Account includes up to 15 GB shared across Gmail, Google Drive and Google Photos [9], and iCloud starts with 5 GB [3]. Google Photos' Storage saver option compresses photos larger than 16 MP to 16 MP and videos above 1080p to 1080p, but those uploads still count toward your storage [11]. Google warns that content may be deleted if you are inactive in Google Photos for 2 years or more [11], and that all content may be removed if an account stays over its quota for 2 years [9].
A note for readers with limited cloud access
Paid cloud storage is not available everywhere. Google sells extra storage through Google One “where available” [9], and Apple's iCloud+ price list, checked on 3 November 2026, does not include Iran [12]. Where paid plans or reliable internet are not available, the local methods described above, offloading or archiving apps, clearing downloads and copying files to a computer, matter more.
Which cleanup option should you choose?
The options differ mainly in what they keep. Offloading on iPhone and archiving on Android both free the app itself while keeping your data [1][6]. Deleting or uninstalling removes the app and, on iPhone, its related data [1]. Clearing an Android app's cache is low-risk, while clearing its storage is permanent [5]. Removing photo copies is safe only if the originals are backed up [7].
A sensible order is to start with the reversible steps (recommendations, offloading or archiving, cache), then move to steps that depend on a backup (removing local photo copies), and leave permanent deletion for last.
How do you stop messaging apps filling your phone?
Messaging apps can keep the photos, videos and other media you receive on the phone. On iPhone, Apple's guidance is to delete conversations and attachments you no longer need [2]; Messages and their attachments appear as their own category in iPhone Storage [1].
Telegram works differently because it keeps media in its cloud. Its FAQ says you can go to Settings, Data and Storage, Storage Usage, then Clear cache to free space on your device without logging out [10], and that cleared media remains in the cloud [10]. For other apps, check the app's own storage settings, and on Android use the app's internal delete options before Clear storage, which wipes everything [5].
What are the risks and limits of freeing up storage?
Benefits
- Room for new apps, media and updates; Google notes that clearing space can also help a phone run better [5].
- Offloading and archiving free space without losing app data [1][6].
- Optimized photo storage keeps a full-resolution library available while saving local space [3].
Risks and limits
- Synced deletions remove photos from every device on the account [4][8].
- Permanently deleted items, or items deleted without a backup, cannot be restored [7][8].
- Archived apps can be restored only while the app store still offers them [6].
- Cloud-based approaches depend on an internet connection and on cloud capacity [3][7][9].
- Some iPhone storage, such as System and Other, cannot be removed by the user [1].
| Action | iPhone | Android | What you keep |
|---|---|---|---|
| Check usage | Settings > General > iPhone Storage [1] | Settings > Storage [5] | Everything; view only |
| Free the app, keep data | Offload app; Offload Unused Apps in App Store settings [1][2] | Archive app, Android 15 and later [6] | Documents and data [1][6] |
| Remove app fully | Delete app [1] | Uninstall app [5] | Paid apps can be re-downloaded on Android without paying again [5] |
| Photos to cloud | iCloud Photos with Optimize iPhone Storage [3] | Google Photos Free up space on this device [7] | Originals in the cloud [3][7] |
| Temporary files | Removed automatically when space is needed [1] | Clear cache per app [5] | App data [5] |
| Deleted photos | Recently Deleted, 30 days [4] | Google Photos trash, 30 days [8] | Recoverable until the period ends [4][8] |
Common mistakes
Deleting photos on the phone to save space while iCloud Photos is on
Fix: That deletes them on every device using the same Apple Account [4]. Turn on Optimize iPhone Storage instead, which keeps originals in iCloud [3].
Expecting space back immediately after deleting photos
Fix: Deleted items stay in Recently Deleted or the Google Photos trash for 30 days [4][8]. Empty them only if you are sure.
Tapping Clear storage when you meant Clear cache
Fix: Clear storage permanently deletes all app data, while Clear cache removes only temporary data [5]. Try the app's own delete options first [5].
Removing device copies before checking the backup
Fix: Google says to make sure photos are backed up before using Free up space [7]; Apple advises backing up photos before deleting [4].
Uninstalling apps whose data you want to keep
Fix: Offload on iPhone or archive on Android keeps the data and lets you reinstall later [1][6].
Filling the cloud instead of the phone
Fix: Google's 15 GB is shared across Gmail, Drive and Photos [9] and iCloud starts at 5 GB [3]; check cloud space before moving a large library.
Frequently asked questions
Why is my iPhone storage full when I have few apps?
Photos, videos, messages with attachments and downloaded media can take more room than apps; Apple's iPhone Storage screen lists each category separately [1]. Check Settings > General > iPhone Storage; System and Other include space the operating system needs and items you cannot remove [1].
Does offloading an app delete my data?
No. Apple says offloading frees the storage used by the app but keeps its documents and data; deleting removes both [1].
Is it safe to clear cache on Android?
Generally yes. Clear cache deletes temporary data and the app may be slower to open next time; Clear storage is the option that permanently deletes the app's data [5].
If I use Free up space in Google Photos, are my photos gone?
Only the copies on your device are removed; backed-up items remain in the Google Photos app and website when you are online and signed in [7]. They will not show in the phone's built-in gallery [7].
How do I free up space without deleting photos?
On iPhone, turn on iCloud Photos with Optimize iPhone Storage [3]; on Android, back up to Google Photos and free up device copies [7]. Or copy files to a computer by USB, then delete them from the phone [5].
Why can't I delete some photos on my iPhone?
Photos added by syncing from a computer cannot be deleted in the Photos app; you need to stop syncing them from the computer [4].
Glossary
- Offload (iPhone)
- Removing an app while keeping its documents and data so it can be reinstalled later [1].
- Archive (Android)
- Removing an app's software, permissions and temporary files while keeping its icon and data [6].
- Cache
- Temporary files an app or system saves to load content faster; iPhone removes them automatically when space is needed [1].
- Optimize iPhone Storage
- An iCloud Photos setting that keeps originals in iCloud and space-saving copies on the device [3].
- Smart Storage
- An Android setting that automatically clears backed-up photos and videos when storage is almost full [5].
- Storage vs memory
- Storage holds data such as photos; memory is where apps run [5].
Sources
- How to check the storage on your iPhone and iPad Apple Support · 2026-10-13
- Manage storage on iPhone (iPhone User Guide) Apple Support; live page, retrieved 2026-11-03
- Manage your photo and video storage Apple Support · 2026-10-01
- Delete photos on your iPhone or iPad Apple Support · 2026-03-31
- Free up storage on your Android device Google, Android Help; live page, retrieved 2026-11-03
- Archive unused apps on Android Google, Android Help; live page, retrieved 2026-11-03
- Free up space on your device (Android) Google Photos Help; live page, retrieved 2026-11-03
- Delete photos & videos Google Photos Help; live page, retrieved 2026-11-03
- How your Google storage works Google One Help; live page, retrieved 2026-11-03
- Telegram FAQ Telegram; live page, retrieved 2026-11-03
- Choose the backup quality of your photos & videos Google Photos Help; live page, retrieved 2026-11-03
- iCloud+ plans and pricing Apple Support · 2026-09-16
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