IOS 18
Every year, Apple unveils the next evolution of its mobile operating system, bringing new capabilities to millions of iPhones worldwide. iOS 18 is no exception, a significant update that introduces groundbreaking AI features, a redesigned user experience, and even settles an old messaging debate. Let's delve into what makes this iteration particularly compelling. iOS 18 ushers in 'Apple Intelligence,' a suite of on-device AI features deeply integrated across the system, requiring specific high-performance iPhone models. The update dramatically overhauls personalization, giving users unprecedented control over their Home Screen layout, icon appearance, and app privacy. Apple finally embraces RCS messaging, improving cross-platform communication, while simultaneously enhancing core apps like Calculator and Photos with powerful new functionalities.
AI Summary
Every year, Apple unveils the next evolution of its mobile operating system, bringing new capabilities to millions of iPhones worldwide. iOS 18 is no exception, a significant update that introduces groundbreaking AI features, a redesigned user experience, and even settles an old messaging debate. Let's delve into what makes this iteration particularly compelling.
- iOS 18 ushers in 'Apple Intelligence,' a suite of on-device AI features deeply integrated across the system, requiring specific high-performance iPhone models.
- The update dramatically overhauls personalization, giving users unprecedented control over their Home Screen layout, icon appearance, and app privacy.
- Apple finally embraces RCS messaging, improving cross-platform communication, while simultaneously enhancing core apps like Calculator and Photos with powerful new functionalities.
Introducing iOS 18: A New Era for iPhone
On June 10, 2024, Apple unveiled iOS 18 at its annual Worldwide Developers Conference, or WWDC. This eighteenth major release of iOS became publicly available on September 16, 2024, as a free software update for supported devices, promising a wave of innovations.
Significantly, iOS 18 marks the final chapter for a familiar design aesthetic. It is the last version of iOS to feature the 'flat design' style that has defined the interface for years, with its successor, iOS 26, set to introduce a new 'Liquid Glass' design. This makes iOS 18 a noteworthy turning point in Apple's design history.
Who Makes the Cut? Device Compatibility
While many iPhones compatible with iOS 17 will receive the iOS 18 update, there are important distinctions. Devices with an Apple A12 or A13 Bionic chip — like the iPhone XS, XS Max, iPhone XR, iPhone 11, and iPhone SE (2nd generation) — have more limited support compared to newer models. This will also be the final major software update for some of these older devices.
The Dawn of AI: Apple Intelligence
Perhaps the most transformative feature arriving with iOS 18 is 'Apple Intelligence'—a new platform designed to infuse artificial intelligence throughout the operating system. This isn't just a single feature, but a sophisticated suite of capabilities that aims to make your iPhone more personal, proactive, and powerfully intuitive.
Apple Intelligence integrates advanced AI and large language models directly into core functions. Imagine Siri becoming even smarter and more conversational, or your Photos app automatically curating memories with surprising insight. It also provides powerful new tools for creating unique images and expressive text.
However, this cutting-edge technology requires significant processing power. Apple Intelligence is only available on the iPhone 15 Pro, iPhone 15 Pro Max, and the newer iPhone 16 and 16 Pro models—devices equipped with the powerful A17 Pro chip or later.
It's also important to note that these advanced AI features are rolling out gradually. While iOS 18 launched in September 2024, Apple Intelligence began its phased introduction with iOS 18.1 and will continue to expand in functionality across subsequent updates, ensuring a smooth integration over time.
Calculator Reimagined: Math Notes and iPad's Debut
The humble Calculator app receives a monumental upgrade in iOS 18, particularly with the introduction of 'Math Notes.' This innovative feature allows you to perform and track calculations on dedicated sheets, solving complex mathematical equations and even plotting functions on graphs.
What's truly remarkable is its integrated handwriting recognition. As you write out equations or numbers, Math Notes intelligently evaluates your input and displays the results right there, seamlessly, in your own handwriting style. It's like a smart digital notepad tailor-made for all your calculations.
And for the first time ever, the redesigned Calculator app is officially available on the iPad, unifying the experience across both iOS and iPadOS. iPad users have long awaited a native calculator, and now it arrives with powerful new capabilities, bridging a long-standing gap in the tablet's utility.
Messaging Evolves: RCS Arrives and iMessage Gets More Expressive
One of the most talked-about changes in iOS 18 is Apple's long-awaited adoption of Rich Communication Services, or RCS, for supported conversations. This means significantly improved functionality when messaging Android users, including features like read receipts and higher-quality multimedia sharing, finally bridging a long-standing communication gap between platforms.
To keep things clear, RCS messages, like traditional SMS, are still designated with green message bubbles and buttons, distinguishing them from the familiar blue iMessage conversations. RCS availability, however, will depend on your carrier's support and compatibility, rolling out regionally.
The Green Bubble Saga: A History of Messaging
Apple's decision to embrace RCS is a significant shift. For years, the company, and specifically CEO Tim Cook, resisted calls for better cross-platform messaging. In 2022, when asked about RCS improving compatibility with Android, Cook famously quipped, 'Buy your mom an iPhone' to a user whose family struggled with fragmented messaging.
This remark, intended as a joke, sparked considerable controversy and was later cited in an antitrust lawsuit against Apple by the U.S. Department of Justice. The move to RCS in iOS 18 effectively signals a response to both persistent user demand and increasing regulatory pressure worldwide.
More Ways to Express Yourself in iMessage
Beyond RCS, iMessage itself receives creative enhancements. You can now apply animated effects to any letter, word, or phrase, adding a new layer of personality to your texts. Basic text formatting like bold, italic, underline, and strikethrough can also be applied to specific parts of your messages, giving you greater control over presentation—though these effects cannot be applied to the exact same selected text simultaneously.
A Photos App Transformation: Curation and Controversy
iOS 18 introduces a completely redesigned Photos app, aiming to make your photo library more organized and discoverable. It automatically generates curated slideshows, now called 'Collections,' which are prominently displayed at the top of your screen, offering a fresh and dynamic way to revisit cherished memories.
Technologically, the Photos app also gains crucial support for encoding and decoding the ISO 21496-1 gain map standard for High Dynamic Range (HDR) images. This allows for superior cross-platform HDR compatibility while remaining backward compatible with Standard Dynamic Range (SDR) displays, ensuring your vibrant photos look great everywhere.
However, this redesign hasn't been without its critics. Many users have found the new layout confusing, leading to some backlash and even prompting some to label it as the most controversial change in iOS 18, proving that even significant improvements can sometimes ruffle feathers among a loyal user base.
Your Home Screen, Your Rules: Unprecedented Customization
Perhaps one of the most user-centric updates in iOS 18 comes to the Home Screen. For the first time, users gain unprecedented control, able to customize icon color, position, and even size. This newfound freedom breaks away from the rigid grid system of previous iOS versions, allowing you to place icons anywhere you desire for a truly personalized layout.
Personalization extends further with a toggle for dark mode icons, applying a consistent aesthetic across first-party and many third-party apps. App Widgets, and even some apps themselves, can now be enlarged or reduced, offering a truly dynamic and adaptable layout experience that reflects individual preferences.
For enhanced privacy, iOS 18 also introduces the ability to lock or hide applications. Locked apps require a passcode or biometric authentication to open, providing an extra layer of security. Hidden apps are moved to a secure 'Hidden' folder in the App Library, completely disappearing from other areas like Siri Suggestions and Settings, offering a discreet way to manage sensitive content.
In a smaller but notable update, iOS 18.1 introduced a new feature enabling users to edit the iPhone home screen directly through iPhone Mirroring, adding another layer of remote control and convenience.
Control Center: A New Command Hub
The Control Center receives a major redesign in iOS 18, transforming into a more flexible and powerful command hub. It now supports multiple pages of controls, resizable buttons, and even allows for the integration of third-party controls, letting you truly tailor your quick access settings and streamline your daily interactions with your device.
Introducing the Passwords App
Say goodbye to digging through settings for your login details! iOS 18 brings a dedicated 'Passwords' app, simplifying the management of all your website and application passwords, Wi-Fi credentials, and even verification codes. It's a centralized, secure vault for your digital keys, automatically migrating all your existing data from the old Settings section into one convenient location.
RecoveryOS: Wireless iPhone Rescue
A notable under-the-hood feature in iOS 18, specifically for the new iPhone 16 series, is recoveryOS. This allows users to wirelessly restore their iPhone's firmware from another iPhone 16 device. While any iPhone running iOS 18 can assist in the recovery process, the wireless firmware restoration itself is exclusive to the iPhone 16 generation, offering a new level of peer-to-peer device support.
Beyond the Headlines: Other Notable Features
iOS 18 also packs several smaller, yet impactful, updates. With iOS 18.1, users can now view battery health information for non-Apple batteries, offering greater transparency. Devices with OLED displays also gain a subtle, elegant 'bulge' animation when hardware buttons are pressed, adding a tactile flourish.
Security is also beefed up, with researchers confirming a new feature that automatically reboots iPhones after 72 hours of inactivity, making it harder for unauthorized access. Plus, iOS 18.2 empowers app developers like Truecaller to offer real-time Caller ID and spam-blocking capabilities, significantly improving call privacy and user control.
Further enhancements in iOS 18.2 include the ability for users to share a link with others or airlines to track the location of AirTags or other accessories in the Find My app. Later, iOS 18.5 introduced the 2025 Pride wallpaper and fixed several security vulnerabilities, while iOS 18.6.1 notably re-enabled the Blood Oxygen feature on Apple Watch, addressing a previous removal.
Reception: Mixed but Positive
Initial reception of iOS 18 was generally mixed to positive from critics and users alike. It was widely praised for its deep personalization features, particularly the Home Screen customization, and new satellite functionalities. However, it faced criticism for numerous bugs present in the initial versions and the gradual rollout of its headline AI features, leading to some user frustration.
Supported Devices at a Glance
To run iOS 18, your iPhone needs an Apple A12 Bionic processor or newer. This means all iPhones compatible with iOS 17 are also compatible with iOS 18. However, to access the advanced 'Apple Intelligence' features, you'll need an even more powerful chip—specifically, the Apple A17 Pro or newer, found in the latest Pro models.
Article
IOS 18
iOS 18 is the eighteenth major release of Apple's iOS operating system for the iPhone. It was announced on June 10, 2024, at the 2024 Worldwide Developers Conference (WWDC), and made publicly available on September 16, 2024, as a free software update for supported iOS devices. It is the direct successor to iOS 17 and was announced alongside iPadOS 18, macOS Sequoia, watchOS 11, visionOS 2, and tvOS 18.
iOS 18 is the last version of iOS that features a flat design style, as that design style was replaced with Liquid Glass in its successor, iOS 26, which was released on September 15, 2025.
Features
Apple Intelligence
The Apple Intelligence platform is available in iOS 18.1 and beyond, on the iPhone 15 Pro and iPhone 15 Pro Max models as well as the iPhone 16 and iPhone 16 Pro models. Apple Intelligence adds artificial intelligence (AI) capabilities and large language model integrations to Siri and other operating system functions, such as the Photos app and image creation tools.
Apple's Intelligence features are set to be introduced gradually across several forthcoming updates. These features were not included in the initial release of the iPhone 16 models.
Calculator
iOS 18's calculator introduces Math Notes, a new feature that allows users to perform and track calculations on separate sheets, solve mathematical equations, and plot functions on graphs. With integrated handwriting recognition, Math Notes automatically evaluates user input and displays the results in their own handwriting. The redesigned Calculator app, now shared between iOS and iPadOS, marks the first time an official calculator has been available for iPad.
Messages
iOS 18 supports Rich Communication Services (RCS) on supported conversations, including support for read receipts and higher-quality multimedia sharing across various platforms. As with SMS, it is designated with green message bubbles and buttons to distinguish it from blue iMessage conversations. Availability of RCS messaging varies by carrier availability and compatibility. Apple previously refused the adoption of RCS in iOS.
In 2022, after being questioned about RCS potentially coming to iPhone to increase compatibility with Android, Tim Cook said that iPhone users were not expressing interest in RCS and instead suggested that a solution would be to switch to an iPhone to use iMessage. The person who asked the question followed up, explaining that they use an iPhone while their mom uses an Android phone, to which Tim Cook jokingly replied "Buy your mom an iPhone" to large controversy. The quote was later cited in an anti-trust lawsuit against Apple Inc. filed by the United States Department of Justice.
In iMessage, animated effects can be applied to any letter, word, or phrase, and text formatting such as bold, italic, underline, and strikethrough can be applied to any part of the text as well. Both can be used simultaneously but cannot be used with the same selected text, however.
Photos
iOS 18 includes a significant redesign of the Photos app. Slideshows known as collections are now automatically generated and visible at the top of the screen. Support for encoding and decoding the ISO 21496-1 gain map standard for HDR images was added, which allows for cross-platform HDR compatibility while remaining backwards compatible with SDR displays. This redesign has led to backlash from many users who find it too confusing and is said to be the most controversial change in iOS 18.
Home screen
iOS 18 allows users to customize the icon color as well as the icon position and size on the home screen.
A toggle to activate dark mode icons for first-party apps and many third party ones was implemented.
Previous iOS versions arranged icons on a preset grid, but now users can place them anywhere.
In iOS 18, app widgets and some apps can now be enlarged or reduced as desired.
Many system icons were given gradients or had them removed.
In iOS 18, applications can now be locked or hidden. Locked apps require passcode or biometric authentication to run. Hidden apps are moved to a designated "Hidden" folder in the App Library; accessing that folder requires passcode or biometric authentication. Hidden apps do not show in other places on the phone such as Siri Suggestions and the Settings app.
In iOS 18.1, a new feature was introduced which enables users to edit the iPhone home screen through iPhone Mirroring.
Control Center
iOS 18 comes with a redesign to the Control Center, allowing for multiple pages of controls, resizable buttons, and third-party controls.
Passwords
Apple introduced the Passwords app, a password manager aimed at simplifying password management for websites, applications, Wi-Fi, and verification codes. This new app is heavily inspired by and replaces the Passwords section that was previously found in Settings, with the addition of Wi-Fi passwords. All existing passwords and codes in Settings are automatically moved to the Passwords app upon updating.
recoveryOS
iOS 18 includes recoveryOS for the iPhone 16 series that allows users to restore firmware wirelessly from another iPhone 16. While all iPhone devices running iOS 18 are able to recover and restore firmware for an iPhone 16 device, wireless firmware recovery can only work between iPhone 16 devices.
Others
iOS 18 Settings on an iPhone 14 Plus
With iOS 18.1, iOS allows the detection and display of battery health information of a non-Apple battery.
On devices with an OLED display, there is a bulge animation when a hardware button is pressed.
With iOS 18.2, users are able to share a link with others or airlines to track the location of AirTags or other accessories in the Find My app.
Reports from law enforcement suggested that a new security feature was added that would reboot iPhones after 72 hours of inactivity to make it harder to break into, which researchers were able to confirm while looking at the code for iOS 18.1.
iOS 18.2 allowed app developers such as Truecaller to add real-time Caller ID and spam-blocking.
With iOS 18.5, Apple introduced the 2025 Pride wallpaper. This update also fixed several security vulnerabilities.
Supported devices
IOS 18
iOS 18 requires a device with an Apple A12 Bionic processor or newer; all iPhones that support iOS 17 are also compatible with iOS 18. The Apple Intelligence feature requires an Apple A17 Pro processor or newer. However, iPhones with an A12 Bionic or A13 Bionic chip have limited support while iPhones with an A14 Bionic to A16 chip are fully supported but lack Apple Intelligence.
<table><thead><tr><th>Supported Device</th><th>Chipset</th><th>Apple Intelligence support</th></tr></thead><tbody><tr><td>iPhone XS & XS Max</td><td>A12</td><td></td></tr><tr><td>iPhone XR</td><td>A12</td><td></td></tr><tr><td>iPhone 11</td><td>A13</td><td></td></tr><tr><td>iPhone 11 Pro & 11 Pro Max</td><td>A13</td><td></td></tr><tr><td>iPhone SE (2nd generation)</td><td>A13</td><td></td></tr><tr><td>iPhone 12 & 12 Mini</td><td>A14</td><td></td></tr><tr><td>iPhone 12 Pro & 12 Pro Max</td><td>A14</td><td></td></tr><tr><td>iPhone 13 & 13 Mini</td><td>A15</td><td></td></tr><tr><td>iPhone 13 Pro & 13 Pro Max</td><td>A15</td><td></td></tr><tr><td>iPhone SE (3rd generation)</td><td>A15</td><td></td></tr><tr><td>iPhone 14 & 14 Plus</td><td>A15</td><td></td></tr><tr><td>iPhone 14 Pro & 14 Pro Max</td><td>A16</td><td></td></tr><tr><td>iPhone 15 & 15 Plus</td><td>A16</td><td></td></tr><tr><td>iPhone 15 Pro & Pro Max</td><td>A17 Pro</td><td></td></tr><tr><td>iPhone 16 & 16 Plus</td><td>A18</td><td></td></tr><tr><td>iPhone 16 Pro & 16 Pro Max</td><td>A18 Pro</td><td></td></tr><tr><td>iPhone 16e</td><td>A18</td><td></td></tr></tbody></table>
Version history
IOS 18
<table><thead><tr><th>Version</th><th>Build</th><th>Release date</th><th>Notes</th></tr></thead><tbody><tr><th rowspan="2">Unsupported: 18.0</th><td>22A3351</td><td>September 20, 2024</td><td>Initial release for iPhone 16 and iPhone 16 Pro lineup</td></tr><tr><td>22A3354</td><td>September 16, 2024</td><td>Developer release notes</td></tr><tr><th>Unsupported: 18.0.1</th><td>22A3370</td><td>October 3, 2024</td><td></td></tr><tr><th>Unsupported: 18.1</th><td>22B83</td><td>October 28, 2024</td><td>Developer release notes</td></tr><tr><th>Unsupported: 18.1.1</th><td>22B91</td><td>November 19, 2024</td><td></td></tr><tr><th>Unsupported: 18.2</th><td>22C152</td><td>December 11, 2024</td><td>Developer release notes</td></tr><tr><th>Unsupported: 18.2.1</th><td>22C161</td><td>January 6, 2025</td><td></td></tr><tr><th rowspan="3">Unsupported: 18.3</th><td>22D63</td><td>January 27, 2025</td><td>Developer release notes</td></tr><tr><td>22D64</td><td>February 3, 2025</td><td>iPhone 11 and iPhone 11 Pro models only</td></tr><tr><td>22D8063</td><td>February 28, 2025</td><td>Initial release for the iPhone 16e</td></tr><tr><th rowspan="2">Unsupported: 18.3.1</th><td>22D72</td><td>February 10, 2025</td><td></td></tr><tr><td>22D8075</td><td>February 19, 2025</td><td>Day one update for iPhone 16e only</td></tr><tr><th rowspan="2">Unsupported: 18.3.2</th><td>22D82</td><td rowspan="2">March 11, 2025</td><td></td></tr><tr><td>22D8082</td><td>iPhone 16e only</td></tr><tr><th>Unsupported: 18.4</th><td>22E240</td><td>March 31, 2025</td><td>Developer release notes</td></tr><tr><th>Unsupported: 18.4.1</th><td>22E252</td><td>April 16, 2025</td><td></td></tr><tr><th>Unsupported: 18.5</th><td>22F76</td><td>May 12, 2025</td><td>Developer release notes</td></tr><tr><th>Unsupported: 18.6</th><td>22G86</td><td>July 29, 2025</td><td>Developer release notes</td></tr><tr><th>Unsupported: 18.6.1</th><td>22G90</td><td>August 14, 2025</td><td>Re-enabled Blood Oxygen feature on Apple Watch</td></tr><tr><th>Unsupported: 18.6.2</th><td>22G100</td><td>August 20, 2025</td><td></td></tr><tr><th>Unsupported: 18.7</th><td>22H20</td><td>September 15, 2025</td><td rowspan="3">Over-the-air updates (OTA) only for newer devices, IPSW files released for iPhone XR and XS models only, with OTA remaining available</td></tr><tr><th>Unsupported: 18.7.1</th><td>22H31</td><td>September 29, 2025</td></tr><tr><th>Unsupported: 18.7.2</th><td>22H124</td><td>November 5, 2025</td></tr><tr><th>Unsupported: 18.7.3</th><td>22H217</td><td>December 12, 2025</td><td>Released for all devices on beta channels and removed from beta channels shortly after, officially released for iPhone XR and XS models only</td></tr><tr><th>Unsupported: 18.7.4</th><td>22H218</td><td>January 26, 2026</td><td rowspan="4">iPhone XR and XS models only</td></tr><tr><th>Unsupported: 18.7.5</th><td>22H311</td><td>February 11, 2026</td></tr><tr><th>Unsupported: 18.7.6</th><td>22H320</td><td>March 4, 2026</td></tr><tr><th rowspan="2">Unsupported: 18.7.7</th><td>22H333</td><td>March 24, 2026</td></tr><tr><td>22H340</td><td>April 1, 2026</td><td rowspan="2">OTA only for newer devices</td></tr><tr><th>Unsupported: 18.7.8</th><td>22H352</td><td>April 22, 2026</td></tr><tr><th>Latest version: 18.7.9</th><td>22H355</td><td>May 11, 2026</td><td rowspan="2">iPhone XR and XS models only</td></tr><tr><th>Preview version: 18.7.10</th><td>22H373</td><td>August 10, 2026</td></tr><tr><td colspan="4">Legend:UnsupportedSupportedLatest versionPreview versionFuture version</td></tr></tbody></table>
Apple initially limited updates for devices eligible for iOS 26 to version 18.7.2. However, following the slow adoption of iOS 26 (largely driven by the controversial Liquid Glass interface) and the emergence of the DarkSword exploit, the company reversed course and took the unusual step of expanding iOS 18.7.7 (originally released only for the iPhone XS and XR) to all newer iPhone models to address the security threat. Apple later did the same for iOS 18.7.8.
See Apple's official release notes and official security update contents.
Reception
IOS 18
Reception of iOS 18 was mixed to positive from critics and users; it was praised for its deep personalization and new satellite features but criticized for its numerous bugs from the initial versions and the gradual rollout of AI features.