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

iOS 26 Feature

iOS 26.1 to iOS 26.4 Will Add These New Features to Your iPhone

Saturday October 18, 2025 11:00 am PDT by
iOS 26 was released last month, but the software train never stops, and iOS 26.1 beta testing is already underway. So far, iOS 26.1 makes both Apple Intelligence and Live Translation on compatible AirPods available in additional languages, and it includes some other minor changes across the Apple Music, Calendar, Photos, Clock, and Safari apps. More features and changes will follow in future ...
ios 26 1 liquid glass opaque

iOS 26.1 Beta 4 Lets Users Control Liquid Glass Transparency with New Toggle

Monday October 20, 2025 10:57 am PDT by
With the fourth betas of iOS 26.1, iPadOS 26.1, and macOS 26.1, Apple has introduced a new setting that's designed to allow users to customize the look of Liquid Glass. The toggle lets users select from a clear look for Liquid Glass, or a tinted look. Clear is the current Liquid Glass design, which is more transparent and shows the background underneath buttons, bars, and menus, while tinted ...
iPhone Siri Glow

Some Apple Employees Have 'Concerns' About iOS 26.4's Revamped Siri

Sunday October 19, 2025 7:39 am PDT by
iOS 26.4 is expected to introduce a revamped version of Siri powered by Apple Intelligence, but not everyone is satisfied with how well it works. In his Power On newsletter today, Bloomberg's Mark Gurman said some of Apple's software engineers have "concerns" about the overhauled Siri's performance. However, he did not provide any specific details about the shortcomings. iOS 26.4 will...
iOS 26

iOS 26.0.2 Update for iPhones Coming Soon

Friday October 17, 2025 7:35 am PDT by
Apple's software engineers continue to internally test iOS 26.0.2, according to MacRumors logs, which have been a reliable indicator of upcoming iOS versions. iOS 26.0.2 will be a minor update that addresses bugs and/or security vulnerabilities, but we do not know any specific details yet. The update will likely be released by the end of next week. Last month, Apple released iOS 26.0.1,...
Apple iPad Pro hero M5

New iPad Pro Has Six Key Upgrades Beyond M5 Chip

Saturday October 18, 2025 10:57 am PDT by
While the new iPad Pro's headline feature is the M5 chip, the device has some other changes, including N1 and C1X chips, faster storage speeds, and more. With the M5 chip, the new iPad Pro has up to a 20% faster CPU and up to a 40% faster GPU compared to the previous model with the M4 chip, according to Geekbench 6 results. Keep in mind that 256GB and 512GB configurations have a 9-core CPU,...
maxresdefault

Here's How the iOS 26.1 Transparency Toggle Changes Liquid Glass

Monday October 20, 2025 1:55 pm PDT by
With the fourth beta of iOS 26.1, Apple added a toggle that makes Liquid Glass more opaque and reduces transparency. We tested the beta to see where the toggle works and what it looks like. Subscribe to the MacRumors YouTube channel for more videos. If you have the latest iOS 26.1 beta, you can go to Settings > Display and Brightness to get to the new option. Tap on Liquid Glass, then...
iOS 26

What's New in iOS 26.1 Beta 4

Monday October 20, 2025 1:02 pm PDT by
Even though we're at the fourth beta of iOS 26.1, Apple is continuing to add new features. In fact, the fourth beta has some of the biggest changes that we'll get when iOS 26.1 releases to the public later this month. We've rounded up what's new below. Liquid Glass Transparency Toggle Apple added a toggle for customizing the look of Liquid Glass. In Settings > Display and Brightness,...
HomePod mini and Apple TV

Apple's Next Rumored Products: New HomePod Mini, Apple TV, and More

Thursday October 16, 2025 9:13 am PDT by
Apple on Wednesday updated the 14-inch MacBook Pro, iPad Pro, and Vision Pro with its next-generation M5 chip, but previous rumors have indicated that the company still plans to announce at least a few additional products before the end of the year. The following Apple products have at one point been rumored to be updated in 2025, although it is unclear if the timeframe for any of them has...

Top Rated Comments

kycophpd Avatar
53 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)
ghanwani Avatar
53 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)
profets Avatar
53 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
53 months ago
“Plagued” lol. First world problems.
Score: 8 Votes (Like | Disagree)
dantracht Avatar
53 months ago
It's always something. 5.0.1 here we come.
Score: 7 Votes (Like | Disagree)
femike Avatar
53 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)