MacworldStorage shortage is a reality for many iPhone owners: whether the culprit is apps, music, Messages or (most commonly) photos and videos, most of us have run out of space at a key moment. Perhaps just as you are trying to update the operating system, or as you were trying to install a hot new app.Unfortunately, you cant upgrade an iPhones internal storage. But all is not lost. We have a few tips for managing and optimizing the storage available on your iPhone, getting the most out of every last gigabyte and freeing up space for new apps and photos.As an aside, please note that even though you cant upgrade the internal storage, you can supplement an iPhones capacity with external storage accessories and you can use iCloud storage to extend your capacity to 2TB and beyond.PROMOTIONEaseUS MobiMover | Transfer iPhone data and free up spaceEaseUS MobiMover is a free iPhone transfer software to figure out whats taking up the most space on your iPhone/iPad, backup and move iPhone data to a computer or new iPhone/iPad, clear the clutters to solve iPhone storage running low problems and get a less overloaded, more organized iPhone/iPad.Now 25% OFF Exclusive Code: MACWORLD25MOBIMOVER FOR MACMobiMover for Windows1.Find out what is taking up space and delete the biggest culpritsFoundryThe first thing to do is find out what is taking up the space on your iPhone. Luckily there is a simple way to do this.Open Settings.Go to General. Tap on iPhone Storage. This will take you to a screen where you can see what is taking up the space on your iPhone. Youll need to be patient while it calculates how much storage is being used and by what. Eventually, you will see a bar chart divided up into Photos, Apps, Messages, iOS, System Data, and other types of files. System Data (which used to be called Other in older versions of iOS) can often run to tens of GB of storage, leaving many to wonder how to delete Other or System Data on an iPhone. Scroll down to see which of your apps are taking up the most space.In images above you can see Photos is using more than 49GB, Messages nearly 20GB. There are ways to manage these apps and how much they store that we will discuss below.If you scroll through the various apps taking up space (they are sorted so that the largest are at the top) you will be able to quickly locate the ones that are worth removing. The figures include any media stored in the app, so expect your Photos, Music, and Messaging apps to be near the top.This view also shows when you last used an app, so you can confidently delete an app you probably wont use any time soon. Dont worry, once youve bought something its tied to your Apple ID so Apple knows you own it and youll be able to download it again.Scroll through the list and be ruthless. If an app you rarely use is taking up 300MB of space then delete it. You can always download it again for free if you want to.Find an app you want to delete. Swipe from right to left on it. Choose Delete App. Alternatively, you could choose Offload App, which will delete the app but keep any documents and data so that if you download it again you can access the data you had in it. Theres another way to delete apps that we will discuss next.Once an app has been deleted you will see it in this list with a download icon beside it, so this is a good place to go if you ever want to re-download something.2.Delete apps from the Home screenFoundryThere is another way to delete apps that might be slightly quicker if you just want to free up some space in a hurry. You can delete an app from the Home screen, including the App Library.How this works depends on the version of iOS you are using. In the most recent iOS versions, press and hold on an icon until the menu comes up. Then tap Remove App. Youll then see a window pop up to confirm you want to delete the app. Choose Delete App to remove it from your iPhone. On older versions of iOS you could tap and hold on its icon and wait for it (and the other icons too) to start jiggling about this means youre in Edit Mode. Then tap on the X in the left corner to delete the app. You can still hold your finger down until youre in Edit model and tap the (-) in the corner of the app icon to delete it, if you wish.There is more advice about deleting apps here: How to delete apps on iPhone & iPad.3.Work through Apples recommendations FoundryWhen youre in Settings > General > iPhone Storage, youll see some recommendations for optimizing your storage. You will probably see two, as well as an option to Show All so you can see more recommendations.The reason why we didnt start with this is that, although a great way to manage storage in the future, its not the quickest way to recover a bit of storage in a hurry. However, it will stand you in good stead if you take Apples advice and put the various storage management suggestions into play. One option you will see here (if you havent already set it up) is to use iCloud Photo Library. This will store your photos and videos in the cloud. iCloud Photo Library is a great solution if you want to have access to all your photos on all your devices, just make sure that Apple stores optimized versions of the photos on your device, rather than full res versions.Another option is to Auto Delete Old Conversations from the Messages app. We havent done this primarily because we dont want to lose access to old messages from people long gone, but its a great way to reduce the amount of storage given to messages. Because of the images and videos stored in Messages, this can often free up several gigabytes.In a similar vein, the Review Large Attachments allows you to delete photos, videos and other media shared in attachments. So if you have a habit of sharing images via Messages expect to find lots of photos or videos here which you can delete if you know you have them in your Photos app.You could also choose to Review Downloaded Videos. If its an option for you tap on the arrow beside it and delete any downloads you see here that you dont need to keep. Tap Edit > Tap the red circle beside the program you want to delete > Tap Delete.You may also see the to Offload Unused Apps. Here Apple volunteers to automatically offload apps that are rarely used when you start to run out of storage. Offloading deletes the app itself, which is easy to replace by redownloading. But it keeps the documents and data, which are likely to be irreplaceable. You can also find the option to Offload Unused Apps under Settings > App Store. Make sure that Automatic app downloads is not selected here, so that apps done automatically download when you add them to other devices.iOS will tell you how much storage you stand to gain from enabling these suggestions.4.Delete app data and cache FoundryApple offers to remove the app while preserving the data, but perhaps its the data you want to delete. Maybe you have old videos and books you no longer plan to watch taking up space in an app you still want to use. Some apps will have a lot of data associated with them that you could delete without having to remove the app itself.To look deeper into the storage being taken up by apps, return to Settings > General > iPhone Storage and click on the arrow beside one of the apps listed there. This way you can see how much data is used by the app itself, and how much additional space is being used by documents and data.Video apps tend to be a big culprit here, but the Review Downloaded Videos above should have solved that for you. Another place to look is your video editing apps, and book reading apps like Kindle and Books. To delete the data you will need to go to the app itself. Well walk through how to delete data from a number of apps below, including Books, Notes, and Messages. Other places to look include:Google Maps: Tap your profile and select Offline Maps to see if theres any map data you dont need to store locally.Prime Video/Netflix/Disney+ etc: Open the app and view your downloads. You should be able to select the ones you wish to delete.Another way to free up space is to clear your browser cache. To delete Safari cache follow these steps: Open Settings. Scroll down and click on Safari. Click on Clear History and Website Data. If you use Chrome you have to remove the cache from inside Chrome. In that case, follow these steps: Open Chrome. Tap on Options.Tap Settings. Tap Privacy. Now tap on Clear Browser Data. Select what you want to delete. Tap Clear Browsing Data. 5.Delete text messagesFoundryAs we mentioned above, you could choose to auto-delete conversations from the Messages app, which would free up a lot of space. But you might not want to do that if you have messages you want to keep for sentimental reasons. You can still delete, en masse, a lot of the Messages on your phone while keeping the ones you dont want to lose.Swipe from right to left on any message that you want to delete. Choose Delete. A better way to filter out messages that are safe to delete and then mass delete them is to filter your messages by Unknown Senders. Tap Filters in the upper left of the main Messages screen.Tap on Unknown Senders.Once in the Unknown Senders view tap on the three dots at the top. Choose Select Messages.Tap on Select all. Double-check that you arent deleting anything you might need. Deselect those messages. Tap Delete. If you dont have any reason to keep messages you have two choices. You can delete messages over a year old or you can delete messages that are just 30 days old. To do this follow these steps: Open Settings. Scroll to Messages and tap. Scroll to Message History and tap on Keep Messages. Now choose between 30 days, 1 Year, and Forever. 6.Delete photos you dont needFoundryIf your photos are taking up a considerable amount of space on your iPhone you might want to consider deleting a few of the ones that you have no desire to keep. Perhaps, like us, you often take screenshots of train times when you are commuting. If you want to delete screenshots from your phone you can do so really easily by opening the Photos app and, under Media Types, look for Screenshots. In there, you can find the screenshots you no longer want to keep and delete them.Or you take a ton of photos just to get the perfect shot. There is no need to keep these shots. We try to get into the habit of deleting these extra shots close to the time we take them, or at least favoriting one of the collections so we can easily go back and delete lots at a later date.(If youre not in this sensible habit, a free app may be able to help. See How to delete duplicate photos on iPhone.) Weve tried a free option called Remo Duplicate Photos Remover, but there are plenty more you can try such as the paid-for Duplicate Photos Fixer.In the Utilities category there is a Duplicates folder. If you select it, you can see all your identical photos and choose which to merge into a single photo.Similarly, if youve been using Burst Mode you may have hundreds of near-identical images you really dont need taking up space on your iPhone.To remove extra shots from Burst Mode find the Bursts folder under Media Types, and remove all the unwanted images.7.Delete images from MessagesFoundryAnother way to save a ton of space on your iPhone is to delete images that have been shared via Messages. Again you might have images here you want to keep for sentimental reasons, so beware. This is a good option if you dont want to mass delete a lot of images, as you can free up space by just deleting the space-hogging images or videos associated with iMessages.Open a conversation.Tap and hold an image within the thread. Youll see a menu below the image.Tap More, and youll see little circles next to each message and image. (The one you tapped and held will have this pre-ticked.)You can now select as many images (or other files) as you wish, then tap the bin icon at the bottom left to delete them. If there are likely to be a few images you want to delete you might want to go straight to the images library associated with that message. To do this follow these steps: Click on the name or group at the top of the message. Now scroll down the page to the Photos section. Tap on See All. Now tap Select. You can tap on any images you want to delete now. Once they are deleted tap on Delete. You can also show just Screenshots, which might help you filter out the things you are most likely to want to delete. Unfortunately, you cant select all here though. 8.Beware of iCloud PhotosFoundrySigning up for iCloud Photos can save you a lot of space if you have gigabytes and gigabytes of photos, reducing the space they take up on your iPhone to something much less greedy, so its definitely worth turning this one on.However, a lot of people have a misunderstanding of what iCloud Photos will do for them. Its a useful service that lets you automatically upload and store your entire photo library in iCloud so you can access photos and videos on all your devices.iCloud Photo is not a way to back up the images on your iPhone so you can delete them from your iPhone. If you were looking for a way to back up your photos so you could delete them iCloud Photos is not it. You cannot delete the images from your iPhone once they are in iCloud because deleting any image will delete it from all your devices. We have a separate article on backing up your Apple photo library and we recommend you read that for tips if thats what you want to do. We also explain How to move photos to iCloud to save space on an iPhone in another article.If you do use iCloud Photos you also need to make sure you choose Optimize iPhone Storage to ensure that if you lack space your iPhone will only keep small versions of images on the device, thereby saving space. Alternatively, you could select Download and Keep Originals, but that would take a lot of space up!9.The movie rental trickFoundryThis tip can create space on your iPhone (from 1/2MB to over 1GB sometimes) using magic. Not really, but were not quite sure how its done, only that it works if your iPhone is almost at maximum capacity. And no, your iPhone doesnt need to be jailbroken, nor does it void the warranty.Before we begin, head to Settings > General > About and make a note of how much storage you have.Then, head to the TV app and find a large title we recommend The Lord of the Rings: The Two Towers at a whopping 6.83GB. Once youve found a suitable movie, tap the Rent button twice (dont worry, you wont actually end up renting it) and dismiss the popup informing you that theres not enough space to download the movie.Now, head back to the About section of the Settings menu and take a look at your available storage. If all has gone well, you should see a difference of a few hundred megabytes, possibly more. While it wont work for everybody, users on Reddit report that following the steps several times allowed them to keep freeing up more storage.Were not quite sure what Apple is deleting when it does this, as its not apps, photos or other important data. We assume itll be clearing out caches and other areas that make up the Other section on your iOS storage breakdown.10.Sign up for iTunes Match or Apple Music FoundryYou dont have to store every Music track you could ever possibly need to listen to on your iPhone. If you sign up for iTunes Match (for $24.99/21.99 a year) or Apple Music ($10.99/10.99 a month) and you will then have every track you own available to you via the cloud. Therefore you can delete your music from your iPhone knowing that every song you may wish to listen to is but a download away. Heres how to sign up for iTunes Match and heres our guide to Apple Music.Once you have signed up for either of these Apples services, all your music on all your Apple devices will be uploaded to iCloud (even tracks you have imported from CD). This means you can download any track you fancy listening to on your iPhone whenever the mood takes you.You can download a track or a whole album, or a whole playlist. Just click on the iCloud download icon beside the title.If you then want to delete the track from your iPhone, just swipe left on it, to delete. It will still be available to download from iCloud another time.11.Remove Books youre not readingFoundryHave you got any iBooks downloaded on your iPhone? Do you need them to be there? If you delete them they will still be available in iCloud to download again, so why not save yourself a few MB by removing the novel youre reading on your iPad from your iPhone.Our Books app is 35.5MB, but carries 1.65GB of data. Using the Books example, to delete the data you need to open the Books app. Open Books. Go to Library. Tap on Edit. Look through the books on your device any that arent currently stored on the iPhone will have a cloud logo beside them. Now tap on any book you wish to remove from your device. Then tap on the Trash in the bottom left to delete it. Tap on Remove Downloads to remove it from your device. You can choose to Delete This Copy, rather than delete it from all your devices.Also, check Settings > Books and make sure you deselect Automatic Downloads so that when you buy a book on another device it doesnt automatically download to your iPhone too.12.Record video at a lower resolutionFoundryNewer iPhones offer you the option to reduce the quality of the videos you record.As the screenshot shows, a minute of video can take up 400MB of space on your iPhone if you record it at 4K, so you probably wont want to be doing that.The iPhone should default to 1080p HD at 60 fps, but you could economize further by recording at 720p HD and 30fps: just 40MB for a minute, rather than 90MB.You can change the settings in Settings > Camera > Record Video.13.Check your other photo-editing appsFoundryThere are photo-editing features in Photos, but you may use separate apps for photo editing. Those apps could have some old images lurking within that you could delete.Check apps like Instagram, Snapchat and the like for images stored in the app itself. 14.Spring-clean your NotesFoundryIf you use your iPhones Notes app fairly heavily you may be wondering how much space you could save by deleting old notes.To see how much storage the app is taking up, go to Settings > General > iPhone Storage, then find and tap on the entry for Notes. This will show separate entries for the app itself (a paltry 12MB) and the documents and data it holds (a slightly less paltry 64.2MB, in our case).To be honest, this still isnt a massive number, and its unlikely to make a huge difference. We deleted a fair few notes and didnt notice any change at all in our phone memory; it doesnt strike us as worth the effort.But if youre desperate (and prepared to be drastic), or if you use Notes to store attachments and other media, then it may make a crucial difference.15.Optimize storage using a third-party app FoundryIf the free tips above arent for you, there are myriad third-party apps available thatll make the process simpler and quicker. Here one of our top suggestions: iMyFone UmateThis is an app for Mac and Windows that can free up a huge amount of space on your iPhone.Plug in your iPhone and run a scan. The app will tell you how much free space you could potentially gain by clearing out temporary and junk files, backing up photos, and deleting large files, then showcases your app collection for rapid (but selective) deletion.Interestingly, the app offers the ability to compress your photos instead of completely deleting them. It backs the original photos up to your Mac or PC, then will compress your entire library to free up extra space (up to 75 percent, according to the company).You can grab a trial of iMyFone Umate for free, or you can pay $19.95 (around 15) for the full app.