How to Free Up Storage on iPhone and Android in Australia

That "storage almost full" warning always seems to arrive at the worst moment, usually right when you want to take a photo or install an update. The good news is that most phones are not actually full of things you need. They are full of old downloads, duplicate photos, cached files, and apps you forgot you installed. With a calm half hour and the steps below, you can usually free up several gigabytes without losing anything important. Work through the checks in order, and back up first before you delete anything you might want later.

Step 1: See what is actually using the space

Start by finding the real culprit instead of guessing. On an iPhone, open Settings, then General, then iPhone Storage. Give it a minute to load. You will see a coloured bar and a list of apps ranked by size, with recommendations at the top such as offloading unused apps or reviewing large attachments. On an Android phone, open Settings, then Storage. The exact wording varies by brand, but most Android phones show a similar breakdown by apps, photos and videos, audio, and system files, plus a button to free up space. Note the top three items. In most cases, photos and videos, one or two social or messaging apps, and downloaded media take up the bulk of the space.

Step 2: Back up photos and videos before deleting anything

Photos are usually the biggest and most personal category, so back them up before you clear them from the phone. On an iPhone, check that iCloud Photos is on in Settings, then Photos, and wait until the sync finishes on Wi-Fi. On Android, open Google Photos, check that backup is on, and wait for the same Wi-Fi sync. If you prefer a local copy, plug the phone into a computer and copy the camera folder across, or use an external drive if your phone supports one. Once you can see the photos in your backup, you can safely remove local copies. In Google Photos, use the "Free up space on this device" option, which removes backed up copies from the phone. On an iPhone with iCloud Photos and Optimise iPhone Storage turned on, full resolution photos are replaced with smaller versions on the phone while the originals stay in iCloud.

Step 3: Clear the biggest app caches and old downloads

Next, tackle apps that quietly hoard data. On an iPhone, you cannot clear every app cache in one place, but you can offload an app in Settings, then General, then iPhone Storage, which removes the app itself while keeping its documents and data for later. For messaging apps, open the app and look for storage or data settings, where you can review large files and old media and delete what you no longer need. On Android, open Settings, then Apps, pick an app, then Storage and cache, and tap Clear cache. Do not tap Clear data unless you are ready to sign in again and lose saved settings, because that wipes much more than the cache. Also check the Files app for a Downloads folder. Old PDFs, installers, and forwarded files pile up there, and most of them can go straight to the bin.

Step 4: Offload or remove apps you no longer use

Scroll through your full app list and be honest about what you actually open. If you have not used an app in months, remove it. On an iPhone, you can turn on Offload Unused Apps in iPhone Storage settings, which automatically removes apps you rarely use while keeping their data, so reinstalling later restores them as they were. On Android, uninstall from the app drawer or from Settings, then Apps. Games are often the largest single apps, so check those first. If a game stores progress in the cloud through your account, you can reinstall it later without losing progress, but check inside the game or its account settings first if you are unsure.

Step 5: Clean up messages, mail, and large attachments

Messages and email can quietly hold gigabytes of photos, videos, and voice notes. On an iPhone, go to Settings, then General, then iPhone Storage, then Messages, and review large attachments and old conversations. Deleting a long thread with lots of media frees more space than deleting a dozen short texts. On Android, open your messaging app and look for storage or large files options, or delete old media heavy threads manually. In your mail app, search for messages with large attachments, download anything you need, then delete the rest and empty the trash. Most mail apps keep deleted items for a while, so emptying trash is what actually frees the space.

Step 6: Move big files and check for duplicates

If you record a lot of video, move finished clips off the phone. Long videos in 4K take up far more room than photos, and a single holiday can fill a phone on its own. Copy finished videos to a computer, a cloud drive, or an external drive, then delete the local copies once you have confirmed the transfer. Also look for duplicate photos, burst shots, and screenshots you no longer need. Your phone's photo app may have a duplicates or utilities section that groups near identical shots together, which makes this much faster than scrolling through everything by hand. Finally, restart the phone after a big cleanup. It helps the system recalculate storage correctly and often clears temporary files that were stuck in use.

Frequently Asked Questions

Will deleting photos from my phone delete them everywhere?

Only if you delete them before they are backed up, or if you delete them from a synced library that removes them from the cloud as well. Back up first, confirm the photos appear in iCloud Photos, Google Photos, or your computer copy, and only then remove local copies.

Is it safe to clear an app cache on Android?

Clearing cache is generally safe. It removes temporary files the app can rebuild, and you stay signed in. Clearing data is different: it resets the app and can sign you out, so use that only when you are ready to set the app up again.

Why does my phone still say storage is full after deleting files?

Give the phone a few minutes and restart it, and check the trash or recently deleted folders in Photos, Files, and your mail app. Deleted files often sit in trash for days before the space is actually freed, and emptying those folders completes the cleanup.