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

apple watch ecg

Apple Watch Likely to Gain Blood Pressure, Blood Glucose, and Blood Alcohol Monitoring

Monday May 3, 2021 4:03 am PDT by
The Apple Watch may gain the ability to measure blood pressure, blood glucose, and blood alcohol levels, according to newly-revealed information about one of Apple's chosen business partners. Apple has been revealed to be the largest customer of the British electronics start-up Rockley Photonics, The Telegraph reports. Rockley Photonics has developed non-invasive optical sensors for...
airtags teardown tile mat galaxy smarttag

iFixit Shares AirTag Teardown Revealing 'Impressively Compact' Design Compared to Tile Mate and Galaxy SmartTag

Sunday May 2, 2021 4:54 am PDT by
iFixit has shared the first of its two-part series in tearing down Apple's AirTag item tracker, revealing that Apple had to make impressive design decisions to achieve its small design, including rethinking the speaker layout. For comparison, iFixit compared Apple's AirTag to the Tile Mate and the Samsung Galaxy SmartTag. Compared to the competition, AirTag is the smallest in size, with the...
facebook instargram updated att prompt 1

Facebook and Instagram Ask Users to Enable App Tracking in Order to Keep Services 'Free of Charge'

Sunday May 2, 2021 1:22 pm PDT by
As a way to convince users to enable tracking across other apps and websites, Facebook is deploying the tactic of telling users that they must enable tracking as part of the App Tracking Transparency framework in iOS 14.5 if they want to help keep Facebook and Instagram "free of charge." App Tracking Transparency or ATT is the newest privacy feature to come to iPhone and iPad devices as part ...
Flat 2021 MacBook Pro Mockup Feature 1

Mini-LED Display Production Improving for Redesigned MacBook Pro Models Later This Year

Monday May 3, 2021 8:33 am PDT by
Apple supplier TSMT, a key vendor involved in the production of mini-LED displays in the newly announced 12.9-inch iPad Pro, has been able to address technical challenges for the production of mini-LED displays to be used in the upcoming 14 and 16-inch redesigned MacBook Pro models. As reported by DigiTimes, TSMT had initially been facing production constraints with the circuit board and...
Foldable iPhone 2023 Feature Yellow

Kuo: Apple to Launch 8-Inch Foldable iPhone in 2023

Sunday May 2, 2021 8:43 pm PDT by
Apple is working to launch a foldable iPhone with an 8-inch QHD+ flexible OLED display in 2023, Apple analyst Ming-Chi Kuo said today in a note to investors that was seen by MacRumors. Based on our latest industry survey, we forecast that Apple will likely launch a foldable iPhone with an 8-inch QHD+ flexible OLED display in 2023, with SDC as the exclusive display supplier and Samsung Foundry...
iOS 14 on iPhone feature emergency

Apple Releases iOS and iPadOS 14.5.1 With Fixes for App Tracking Transparency Bug, WebKit Security Issues

Monday May 3, 2021 10:04 am PDT by
Apple today released iOS and iPadOS 14.5.1, minor security updates that come just a week after the release of the iOS 14.5 update. There is also a companion watchOS 7.4.1 update for Apple Watch and an iOS 12.5.3 update for older iPhone and iPad devices that don't support Apple's latest operating system versions. According to Apple's release notes, the update fixes a bug with App Tracking...
General Music and AirPod 3 Feature

Rumor: Apple to Announce Third-Generation AirPods and HiFi Apple Music Tier in 'Coming Weeks'

Saturday May 1, 2021 3:57 am PDT by
Citing sources within the music industry, Hits Double Daily reports that Apple is preparing to launch a new HiFi Apple Music tier in the "coming weeks," which will come alongside the release of the rumored third-generation AirPods. According to the report, the new tier, which will offer high-fidelity music streaming, will cost the same $9.99 monthly subscription as the current individual...
Top Stories 58 Feature 1

Top Stories: iOS 14.5 Released, AirTag Launch, New iMac and iPad Pro Pre-Orders

Saturday May 1, 2021 6:00 am PDT by
After nearly three months of beta testing, Apple this week finally released iOS 14.5, the company's biggest update since the iOS 14 launch last September. One of the main new features included in the update is support for AirTags, Apple's item trackers that also finally became available this week some two years after their existence first leaked. Apple this week also began taking orders for...
tile sticker e1570533758981

Tile CEO: 'We Welcome Competition From Apple, But We Think It Needs to Be Fair'

Tuesday May 4, 2021 9:51 am PDT by
Just after Apple announced its AirTags, Tile CEO CJ Prober relayed his concerns about competing with Apple in the tracking space, and said that Tile would ask Congress to investigate Apple's business practices specific to Find My and item trackers. Prober this week did an interview with Bloomberg, where he further expanded on Tile's complaints about Apple and why he feels that Tile is...
apple music album cover art

iOS 14.6 Beta 1 Code Hints at Upcoming HiFi Apple Music Support

Saturday May 1, 2021 10:41 am PDT by
Apple is laying the groundwork for adding HiFi support to Apple Music which would offer Apple Music subscribers and owners of compatible devices, such as certain models of AirPods, access to high-fidelity audio streaming, according to code within the iOS 14.6 beta discovered by MacRumors. Earlier today, a report claimed that Apple will announce a new $9.99 per month Apple Music tier that...