How to Free Up Storage on Your Phone (When It Says "Storage Full")

You go to take a photo of your grandchild blowing out birthday candles, and your phone says "Storage Full." Or perhaps you try to download an app your doctor recommended, and it will not install because there is no space left. This is one of the most common and frustrating problems people run into with their phones, and the good news is that it is surprisingly easy to fix.

In this guide, we will walk you through exactly what is using up all that space, how to check your storage, and how to free it up — step by step, in plain English. Whether you have an iPhone or an Android phone, we have got you covered.

Why Does Your Phone Say "Storage Full"?

Your phone has a limited amount of storage space — think of it like a cupboard. Every photo you take, every app you install, every message you receive, and every video you watch takes up a little bit of room in that cupboard. Over time, the cupboard fills up.

Here are the most common things that eat up your storage:

• Photos and videos. These are usually the biggest culprits, especially videos. A single one-minute video can take up more space than 100 photos.
• Apps. Some apps are quite large, and they also store data on your phone over time.
• Messages and WhatsApp. Every photo, video, and voice message people send you through WhatsApp or text messages gets saved on your phone.
• Downloads. Files you have downloaded from emails or the internet sit in a downloads folder you might not even know about.
• App cache. Apps store temporary files (called "cache") to help them load faster. Over time, this adds up.

The first step to fixing the problem is finding out exactly what is taking up all that space.

How to Check Your Storage

On iPhone

1. Open the Settings app (the grey gear icon).
2. Tap General.
3. Tap iPhone Storage.
4. Wait a moment while your phone calculates. You will see a coloured bar at the top showing what is using your space — apps, photos, messages, and so on.
5. Below the bar, you will see a list of apps sorted by how much space they use.

On Android

1. Open the Settings app.
2. Tap Storage (on some phones, you may need to tap Battery and device care first, then Storage).
3. You will see a breakdown of what is using your space — images, videos, apps, and other files.

Take a moment to look at these numbers. They will tell you exactly where to focus your efforts.

Step 1: Back Up and Delete Old Photos and Videos

Photos and videos almost always take up the most space. Before you delete anything, it is a very good idea to back them up first so you do not lose any precious memories. We have a full guide on how to organize and back up photos on your phone that goes into more detail, but here is a quick summary.

Back Up Your Photos First

• On iPhone: Turn on iCloud Photos. Go to Settings, tap your name at the top, tap iCloud, then Photos, and turn on Sync this iPhone. Your photos will be saved to the cloud automatically.
• On Android: Open the Google Photos app, tap your profile picture in the top right, tap Photos settings, then Backup, and turn it on.

Once your photos are safely backed up, you can delete the ones you no longer need on your phone.

Delete Old Photos and Videos

1. Open your Photos app.
2. Look through your pictures and select the ones you want to delete. Pay special attention to videos, as they take up far more space than photos.
3. Tap the bin or delete icon.
4. Important: After deleting, go to the Recently Deleted folder (iPhone) or Bin (Android) and empty it. Deleted photos sit there for 30 days before they are truly removed, so they are still taking up space until you clear them out.

Tip: Look for duplicate photos — many of us accidentally take three or four shots of the same thing. On iPhone, there is a Duplicates album in the Photos app that makes this easy.

Step 2: Clear App Cache

Apps store temporary data on your phone to help them run faster. Over time, this "cache" can grow quite large, especially for apps like Facebook, Instagram, and web browsers.

On Android

1. Open Settings.
2. Tap Apps (or Application Manager).
3. Tap an app that uses a lot of space — for example, Facebook or Chrome.
4. Tap Storage.
5. Tap Clear Cache. (Do not tap "Clear Data" unless you want to reset the app completely, which would log you out.)

On iPhone

iPhones do not let you clear cache for individual apps in quite the same way. However, you can:

• Delete and reinstall the app. This clears all its cached data. You will need to log in again afterwards.
• Clear Safari cache. Go to Settings, scroll down to Safari, and tap Clear History and Website Data.

Step 3: Remove Apps You No Longer Use

Have a look through your apps. If there are any you have not opened in months, it is worth removing them. You can always download them again later if you need them — our guide on how to download apps safely explains how.

On iPhone

1. Press and hold the app icon on your home screen.
2. Tap Remove App, then Delete App.

On Android

1. Press and hold the app icon.
2. Tap Uninstall (or drag it to the "Uninstall" option at the top of the screen).

Tip: Go back to your storage settings and look at the list of apps sorted by size. You might be surprised to find apps you forgot about that are taking up a lot of room.

Step 4: Offload Unused Apps (iPhone Only)

This is a clever iPhone feature that many people do not know about. When you offload an app, your phone removes the app itself but keeps all its data. If you reinstall the app later, everything picks up right where you left off — your login, your settings, everything.

1. Go to Settings then General then iPhone Storage.
2. Tap on an app you rarely use.
3. Tap Offload App.

You can also turn on automatic offloading: go to Settings, then App Store, and turn on Offload Unused Apps. Your phone will do this automatically for apps you have not opened in a while.

Step 5: Clear Your Downloads Folder

Files you download from emails, websites, and messages all end up in a downloads folder. Many people never look in this folder, and it can quietly fill up with things you no longer need.

On iPhone

1. Open the Files app (it looks like a blue folder).
2. Tap Browse at the bottom.
3. Tap On My iPhone.
4. Look for a Downloads folder and open it.
5. Delete anything you no longer need by pressing and holding the file, then tapping Delete.

On Android

1. Open the Files app (sometimes called My Files or File Manager).
2. Tap Downloads.
3. Go through the list and delete files you no longer need. Tap and hold a file to select it, then tap the bin icon.

Step 6: Clean Up WhatsApp Media

If you use WhatsApp regularly, you might be shocked at how much space it is using. Every photo, video, GIF, and voice note that people send you gets saved to your phone.

1. Open WhatsApp.
2. Go to Settings (tap the three dots on Android, or Settings tab on iPhone).
3. Tap Storage and Data.
4. Tap Manage Storage.
5. You will see how much space WhatsApp is using and which files are the largest.
6. You can select and delete large files, forwarded media, or files older than a certain date.

Tip: In WhatsApp settings under Storage and Data, you can also turn off auto-download for photos, videos, and documents. This stops WhatsApp from automatically saving every file people send you, which is one of the best ways to prevent your storage from filling up again.

Cloud Storage Options Explained

If your phone keeps running out of space, cloud storage is the best long-term solution. "The cloud" simply means storing your files on the internet instead of on your phone. If you would like to understand more about how this works, have a look at our guide on what the cloud is, explained simply.

Here are the main options:

iCloud (For iPhone Users)

• Every iPhone comes with 5 GB of free iCloud storage, but this fills up quickly.
• You can upgrade to 50 GB for 99p per month (or 99 cents in the US), which is enough for most people.
• iCloud backs up your photos, messages, app data, and more — all automatically.
• To check or upgrade: go to Settings, tap your name, tap iCloud, then Manage Account Storage.

Google Photos (For Android Users)

• Google gives you 15 GB of free storage shared across Google Photos, Gmail, and Google Drive.
• Photos and videos are backed up automatically if you turn on backup in the Google Photos app.
• When you run out of free space, you can upgrade to Google One, which starts at around 1.99 per month for 100 GB.

Google One

• This is Google's paid storage plan that gives you extra space for Google Photos, Gmail, and Google Drive.
• Plans start at 100 GB and go up from there.
• It works on both Android and iPhone.
• You can share your storage plan with family members, which makes it good value.

Our recommendation: If you have an iPhone, upgrading your iCloud storage is the simplest option. If you have an Android, sticking with Google Photos and upgrading to Google One when needed is the way to go. Either way, paying a small monthly fee for cloud storage is well worth it for the peace of mind.

How Much Storage Do You Actually Need?

When you buy a phone, it comes with a set amount of storage — usually 64 GB, 128 GB, or 256 GB. But how much do you really need?

• 64 GB is fine if you only take occasional photos, use a handful of apps, and back up your photos to the cloud regularly.
• 128 GB is the sweet spot for most people. It gives you plenty of room for photos, apps, and messages without worrying too much.
• 256 GB or more is only necessary if you take a lot of videos, download films to watch offline, or use your phone for work.

If your current phone has 64 GB and you are always running out of space, consider choosing 128 GB when you next upgrade. In the meantime, cloud storage is your best friend.

How to Prevent "Storage Full" From Happening Again

Once you have freed up space, here are some habits that will stop the problem from coming back:

1. Turn on automatic photo backup. Whether you use iCloud or Google Photos, make sure your photos are being backed up automatically. Then you can delete them from your phone without losing them.
2. Turn off WhatsApp auto-download. Go to WhatsApp Settings, then Storage and Data, and set photos, videos, and documents to download only "When connected to Wi-Fi" or turn auto-download off entirely.
3. Review your storage once a month. Set a reminder to check your phone's storage settings once a month. It only takes a minute and helps you catch problems early.
4. Delete apps you stop using. If you downloaded an app to try it and did not like it, remove it straight away rather than leaving it sitting there.
5. Empty your bins. After deleting photos or files, remember to empty the Recently Deleted or Bin folder to actually reclaim the space.
6. Be mindful of videos. Videos take up enormous amounts of space. If you record a lot of video, back it up to the cloud regularly and delete the originals from your phone.

Frequently Asked Questions

Will I lose my photos if I delete them from my phone after backing up to the cloud?

If your photos are backed up to iCloud or Google Photos, they are safely stored on the internet. However, be careful — on iPhone, if you delete a photo with iCloud Photos turned on, it may also delete it from iCloud. To free up space without losing photos, go to Settings, then Photos, and turn on Optimise iPhone Storage. This keeps smaller versions on your phone and the full-quality versions in the cloud. On Android with Google Photos, you can use the Free up space option in the app, which only removes photos that are already backed up.

Is it safe to clear app cache? Will I lose anything important?

Clearing app cache is completely safe. Cache is just temporary data that helps apps load a little faster. You will not lose any of your accounts, messages, photos, or personal information. The only thing that might happen is that the app takes a second or two longer to load the first time you open it afterwards, because it needs to rebuild its cache. This is nothing to worry about.

What is the difference between deleting an app and offloading it on iPhone?

When you delete an app, the app and all its data are removed completely. If you reinstall it later, you start from scratch. When you offload an app, the app is removed to save space, but all its data and settings are kept on your phone. If you reinstall it, everything is exactly as you left it — your login details, your preferences, and your history. Offloading is the better choice if you think you might use the app again in the future.

You Have Got This

Freeing up storage on your phone is not difficult — it just requires a bit of tidying up, much like clearing out a cupboard at home. Start with the biggest items (usually photos, videos, and WhatsApp media), set up cloud backup so your memories are safe, and build a few simple habits to keep things under control.

If your phone has been telling you "Storage Full," follow the steps above and you should have plenty of space again in no time. And remember, you do not need to do everything at once — even just clearing out old photos and emptying the bin can make a big difference.