If your iPhone or iPad storage space is dwindling at an alarming rate or your device feels like it's getting slower, then you could benefit from clearing the cache that apps use.

ipad iphone duo ios 12
Cached data includes all the files and images that are kept in your device's memory, which is meant to help apps avoid having to request the same data repeatedly and thereby keep things speedy – in theory.

In fact, it's possible for an overzealous app to fill up your ‌iPhone‌'s cache to the point where overall performance takes a hit. So it's good practice to spring-clean the cache now and again to ensure your device isn't bogged down unnecessarily. Here's how.

How to Clear iPhone and iPad Cache

The following steps clear all cookies and web data cached on your device by Safari, although AutoFill information remains unchanged. Note that when you clear Safari browsing history on a device running iOS 11 or higher, the same logs are cleared on any other devices signed into the same iCloud account.

  1. Open the Settings app on your ‌iPhone‌ or ‌iPad‌ and scroll down to Safari in the list.
  2. Scroll to the Privacy & Security section and tap the blue Clear History and Website Data option near the bottom of the menu. (Note that this setting might be grayed out if there's already no history to clear or if parental controls are set for websites.)
  3. Tap Clear History and Data in the popup pane to confirm.

clear web history

How to Clear iPhone Cache for Third-Party Apps

The way to clear the cache used by third-party apps on your ‌iPhone‌ varies from app to app. For example, there's a cache reset option for Slack in the main Settings app (Settings -> Slack -> Reset cache on next launch), while you can control the storage that individual WhatsApp conversations use from within the chat app (Settings -> Data and Storage Usage -> Storage Usage).

settings
If there's an app that you suspect is unnecessarily hoarding data on your ‌iPhone‌ but you can't find an equivalent option to clear its cache, then the best alternative is to check the iOS ‌iPhone‌ Storage screen.

  1. Launch the Settings app on your ‌iPhone‌ or ‌iPad‌.

  2. Tap General.

  3. Tap iPhone Storage.

  4. A list of all the apps (including stock apps) on your iOS device will load in order of size, with the largest apps listed first. Tap an app in the list that is taking up an unnecessary amount of space.
    identify redundant ios apps

  5. Two uninstall options are presented on this screen. Tap Offload App to unload the app but preserve any documents and data (these are reinstated if you later reinstall the app) or tap Delete App to remove the app and all related data from your device.

It's worth scrolling down the ‌iPhone‌ Storage list and looking at the Last Used: date underneath the title of each app. If it's been several weeks or months since you opened an app, or it says Never Used, then consider uninstalling it.

If you tend to download a lot of apps that often get left unused, consider enabling the ‌iPhone‌ Storage menu recommendation to automatically Offload Unused Apps when you're low on storage. If you uninstall a purchased app but later decide that you want to use it (and it's still available in the App Store) simply follow the steps below.

How to Reinstall Deleted Apps

  1. Launch the App Store app on your ‌iPhone‌ or ‌iPad‌.

  2. Tap the Today tab if it isn't selected already.

  3. Tap your circular profile photo at the top-right of the Today screen to access the account settings screen.

  4. Tap Purchased.
  5. Tap My Purchases.
    App Store

  6. In the Purchased screen, tap the Not on this iPhone tab.

  7. Scroll through the list of purchased apps to find the one that you want to reinstate, and tap the cloud download icon next to it to re-download and install.

As it stands, iOS still lacks a straightforward way to clear the cache in apps. For example, sometimes you may want to keep an app, but delete its documents and data. Hopefully Apple will include an equivalent option in a future version of iOS, but until then, the methods described above are your best options for clearing the cruft from your ‌iPhone‌.

Top Stories

iOS 14 on iPhone feature emergency

Apple Releases iOS and iPadOS 14.7.1 With Fix for Touch ID Apple Watch Bug

Monday July 26, 2021 9:48 am PDT by
Apple today released iOS and iPadOS 14.7.1, minor bug fix updates that come just a week after the release of iOS 14.7, software that introduced new Apple Card features and support for the MagSafe Battery Pack. The iOS and iPadOS 14.7.1 updates can be downloaded for free and the software is available on all eligible devices over-the-air in the Settings app. To access the new software, go to...
iPad mini pro feature 2

iPad Mini 6 to Feature 8.3-Inch Display With No Home Button and Narrower Bezels

Monday July 26, 2021 12:26 pm PDT by
The sixth-generation iPad mini that's in the works will have an 8.3-inch display, according to display analyst Ross Young. That will be larger than the current 7.9-inch display, with the larger size due to the removal of the Home button and a narrower bezel design. Rumors about the iPad mini 6 have been picking up in recent weeks ahead of its prospective launch this fall. Apple analyst...
iphone 12 pro gold

Report: iPhone 14 Pro Models to Feature Tough Titanium Alloy Chassis

Monday July 26, 2021 1:12 am PDT by
Next year's "iPhone 14" series is expected to feature high-end models with a new titanium alloy chassis design, claims a new investors report by JP Morgan Chase. According to the report, the use of titanium alloy will be one of the biggest changes to the case design in the 2022 iPhone series, and Foxconn will be the exclusive manufacturer of the titanium frames for the high-end models....
nothing ear 1 buds 1

Nothing 'Ear (1)' True Wireless Earbuds Launch to Take on AirPods Pro With ANC and Unusual Design for $99

Tuesday July 27, 2021 7:57 am PDT by
Nothing, a new brand from OnePlus founder Carl Pei, has today officially launched the "Ear (1)" true wireless earbuds after months of anticipation around the company's AirPods Pro rival. The Ear (1) features an in-ear design, Active Noise Cancelation, Bluetooth 5.2, IPX4 water resistance, and a charging case with Qi-compatible wireless charging and a USB-C port. Fast pairing is supported on...
apple mac business page

Apple Shares 11 Reasons Why Business Users Should Choose Macs

Monday July 26, 2021 11:35 am PDT by
Apple today updated its Apple at Work website with a new section dedicated to the Mac, which offers up 11 reasons why "Mac means business." On the webpage, Apple highlights the M1 chip as the number one reason why business users should choose a Mac, offering up an M1 overview [PDF] that explains the benefits of the M1 chip. The information isn't new, but it does provide a look at all of...
imac with accessories

Larger Redesigned High-End iMac Rumored to Launch Next Year

Monday July 26, 2021 3:45 am PDT by
Apple's larger redesigned iMac will arrive sometime in 2022 rather than later this year, according to the leaker known as "Dylandkt." On Twitter, Dylandkt claimed that Apple's "high end iMac" is not expected to release in the fourth quarter of 2021 alongside Apple's "M1X Macs" – a reference to Apple's redesigned MacBook Pro models – because "Apple simply does not want their devices to...
General iOS 14

iOS 14.7.1 and macOS Big Sur 11.5.1 Patch Security Vulnerability That May Have Been Actively Exploited

Monday July 26, 2021 11:55 am PDT by
Apple today released unexpected iOS 14.7.1 and iPadOS 14.7.1 updates to the public, and according to a newly released support document, the software addresses a serious security vulnerability that may have been exploited in the wild. Apple says that an application may have been able to execute arbitrary code with kernel privileges due to a memory corruption issue. "Apple is aware of a report ...
apple bitcoin hack

Is Apple Really Buying Bitcoin?

Monday July 26, 2021 3:07 am PDT by
A large number of websites and posts on social media are stoking rumors that Apple has purchased $2.5 billion worth of bitcoin in the company's first move into cryptocurrency, but is there any validity to the claims? Many people are citing the fact that Apple was looking for a Business Development Manager with experience in alternative payments, including cryptocurrency, earlier this year as ...
tesla red orange bg feature

Tesla CEO Elon Musk Takes Shots at Apple During Earnings Call

Monday July 26, 2021 4:53 pm PDT by
During a Tesla earnings call that took place today, Tesla CEO Elon Musk spent time sniping at Apple, reports CNBC. Musk criticized Apple's "walled garden" and made comments on the company's cobalt use. In a discussion about plans to allow Tesla competitors to use the Tesla electric vehicle charger network, Musk said that Tesla does not want to create a walled garden to "bludgeon" Tesla...
FaceID iMac REREREREMIX

Gurman: Face ID on the Mac Coming Within a 'Couple of Years'

Sunday July 25, 2021 7:09 am PDT by
Apple plans to bring Face ID to the Mac within the next "couple of years," respected Bloomberg journalist Mark Gurman said today in the latest edition of his Power On newsletter. In the newsletter, Gurman says that he believes Apple's ultimate goal is to shift all of its products to Face ID, including the lower-end iPhones such as the iPhone SE and the iPad Air, which feature Touch ID....