What Is iOS 15: Everything You Need to Know

This article provides a concise overview of iOS 15, Apple's major mobile operating system update released in 2021. Below, you will discover the core definition of iOS 15, its standout features—including Focus mode, FaceTime improvements, and redesigned notifications—as well as its privacy enhancements and device compatibility.

What Is iOS 15?

iOS 15 is the fifteenth major release of Apple's iOS mobile operating system, designed specifically for the iPhone and iPod Touch. Unveiled at the Worldwide Developers Conference (WWDC) in June 2021 and officially released to the public on September 20, 2021, it introduced significant improvements aimed at keeping users connected, focused, and secure. For comprehensive guides and documentation, check the iOS 15 resource website.

Key Features of iOS 15

• FaceTime Upgrades: FaceTime received major enhancements, including Spatial Audio to make voices sound like they are coming from the speaker's direction, Voice Isolation to filter out background noise, and Portrait Mode video. Additionally, FaceTime links allowed Windows and Android users to join calls via a web browser.
• SharePlay: Integrated into FaceTime, SharePlay allows users to listen to music, watch movies, or share their screens simultaneously with participants on a call.
• Focus Mode: An evolution of Do Not Disturb, Focus lets users filter notifications and home screen pages based on what they are currently doing, such as working, sleeping, or exercising.
• Redesigned Notifications: Notifications feature larger app icons and contact photos to make them easier to identify, along with a Notification Summary that bundles non-urgent alerts to be delivered at a chosen time.
• Live Text: Using on-device intelligence, Live Text recognizes text in photos and images across the system, allowing users to copy, paste, look up definitions, or make phone calls directly from an image.
• Safari Redesign: Safari introduced a streamlined tab bar positioned at the bottom of the screen for easier one-handed reach, alongside Tab Groups for better organization across devices.
• Apple Maps Overhaul: Maps received enhanced detail for cities, including elevation data, 3D landmarks, turn-by-turn walking directions in augmented reality, and improved driving navigation.

Privacy and Security Improvements

iOS 15 introduced stronger user privacy protections:

• Mail Privacy Protection: Prevents email senders from learning your IP address and seeing if or when an email was opened.
• App Privacy Report: A dedicated section in Settings that displays how frequently apps access sensitive data like your location, photos, camera, and microphone over a seven-day period.
• On-Device Siri Processing: Speech recognition for basic requests was moved entirely to the device, improving speed and preventing audio recordings from being sent over the internet.

Device Compatibility

iOS 15 supported all devices capable of running iOS 14. This included:

• iPhone 13 series
• iPhone 12 series
• iPhone 11 series
• iPhone XS, XS Max, and XR
• iPhone X, 8, and 8 Plus
• iPhone 7 and 7 Plus
• iPhone 6s and 6s Plus
• iPhone SE (1st, 2nd, and 3rd generation)
• iPod Touch (7th generation)