Some Users Plagued by Incorrect 'iPhone Storage Almost Full' Alert After Updating to iOS 15 - MacRumors
Skip to Content

Some Users Plagued by Incorrect 'iPhone Storage Almost Full' Alert After Updating to iOS 15

Just two days after Apple released iOS 15 and iPadOS 15 to the public, a new wave of user reports from social media are already pointing to some widespread bugs, this time pertaining to reported storage on a device.

iphone storage almost full
A flood of users has taken to Twitter over the last 24-48 hours to share their experience that after updating to iOS 15, they see an "iPhone Storage Almost Full" warning inside of Settings, despite their iPhone having a sufficient amount of storage left. Apple Support's Twitter account is riddled with users reporting the bug.

Annoyingly, the warning inside of Settings can't be dismissed, and tapping on it only takes users to the iPhone Storage page within Settings, where they're reminded that their device, in the majority of cases, still has an adequate amount of storage left. A post on Apple Support's Community Forums, which has racked up over 900 views at the time of writing in just over 13 hours, also includes users reporting the bug.

The warning, however, is not the only storage-related bug that's irking some users. Other reports on Twitter indicate that iOS 15 has resulted in a bug in which the amount of available storage on a device is sometimes shown to be more than the device's capacity. In other cases, an iOS 15 bug results in the wrong tabulation for how much storage a user's content is taking up.

In all cases, Apple Support is advising users to restart their devices, but that does little to address the problem. Some of the bugs experienced by users appeared during the beta testing period for iOS 15 over the summer, which is meant to fix as many bugs and issues as possible before the update becomes widely available.

This week, Apple began testing iOS and iPadOS 15.1; however, given the widespread nature of these bugs, Apple may decide to release iOS 15.0.1 to address the storage bug and other improvements and security enchantments. We've reached out to Apple for comment.

Related Forum: iOS 15

Popular Stories

iPhone 18 Pro Deep Red Feature

iPhone 18 Pro Launching in Two Months With These 12 New Features

Friday July 24, 2026 7:26 pm PDT by
It is now late July, and that means the iPhone 18 Pro and iPhone 18 Pro Max are less than two months away. The devices are expected to look similar to the iPhone 17 Pro and iPhone 17 Pro Max, but there will still be many year-over-year changes, with rumored features including a smaller Dynamic Island, 5G via satellite, and more. Apple is expected to unveil the iPhone 18 Pro, iPhone 18 Pro...
macbook ultra

'MacBook Ultra' Coming Soon With These 12 New Features

Friday July 24, 2026 6:00 pm PDT by
Apple's first high-end MacBook redesign in five years is expected to arrive in the near future, bringing a run of firsts to the Mac. Bloomberg's Mark Gurman expects the laptop to arrive between late 2026 and early 2027, with the later window now looking more likely owing to the global memory chip shortage. Analyst Ming-Chi Kuo expects mass production to begin by late 2026. Apple last...
5 Reasons to Buy the iPhone 17 Now Feature

5 Reasons to Buy the iPhone 17 Now Instead of Waiting for iPhone 18

Thursday July 23, 2026 8:26 am PDT by
Apple's iPhone 18 Pro models and its first foldable are less than two months from being unveiled. That may sound like a reason to sit tight if you're looking to upgrade from an iPhone 16 or older series, but between looming price hikes and Apple's new split-launch calendar, there's a decent case for grabbing an iPhone 17 series model right now. Here are five reasons in favor of putting your order ...

Top Rated Comments

kycophpd Avatar
63 months ago
I guess they gave me some of their storage. I’m still trying to figure out my available storage compared to the actual storage size…

Attachment Image
Score: 25 Votes (Like | Disagree)
63 months ago
This is the first time I didn't bother upgrading to a new version of iOS as soon as it was available. I turned off auto update when Apple announced CSAM and didn't bother turning it back on.
Score: 17 Votes (Like | Disagree)
63 months ago
I’m still annoyed by the Other data use. Depending on device, sometimes it occupies a crazy amount.

Attachment Image
Score: 13 Votes (Like | Disagree)
ChrisMoBro Avatar
63 months ago
“Plagued” lol. First world problems.
Score: 8 Votes (Like | Disagree)
63 months ago
It's always something. 5.0.1 here we come.
Score: 7 Votes (Like | Disagree)
63 months ago

This is the first time I didn't bother upgrading to a new version of iOS as soon as it was available. I turned off auto update when Apple announced CSAM and didn't bother turning it back on.
Same here.
Score: 6 Votes (Like | Disagree)