iOS 8 is the
eighth major release of the
iOS mobile operating system
A mobile operating system is an operating system used for smartphones, tablets, smartwatches, smartglasses, or other non-laptop personal mobile computing devices. While computers such as laptops are "mobile", the operating systems used on the ...
developed by
Apple Inc., being the successor to
iOS 7. It was announced at the company's
Worldwide Developers Conference
The Worldwide Developers Conference (WWDC) is an information technology conference held annually by Apple Inc. The conference is currently held at Apple Park in California. The event is used to showcase new software and technologies in the macO ...
on June 2, 2014, and was released on September 17, 2014. It was succeeded by
iOS 9 on September 16, 2015.
iOS 8 incorporated significant changes to the operating system. It introduced a
programming interface
An application programming interface (API) is a connection between computers or between computer programs. It is a type of software interface, offering a service to other pieces of software. A document or standard that describes how to build su ...
for communication between apps, and "Continuity", a cross-platform (
Mac,
iPhone
The iPhone is a line of smartphones developed and marketed by Apple that run iOS, the company's own mobile operating system. The first-generation iPhone was announced by then–Apple CEO and co-founder Steve Jobs on January 9, 2007, at ...
, and
iPad
The iPad is a brand of tablet computers developed and marketed by Apple Inc., Apple that run the company's mobile operating systems iOS and later iPadOS. The IPad (1st generation), first-generation iPad was introduced on January 27, 2010. ...
) system that enables communication between devices in different product categories, such as the ability to answer calls and reply to
SMS on the Mac and iPad. Continuity includes a "Handoff" feature that lets users start a task on one device and continue on another. Other changes included a new
Spotlight Suggestions search results feature that provides more detailed results, Family Sharing, where a family can link together their accounts to share content, with one parent as the administrator with permission controls, an updated keyboard with QuickType, providing contextual predictive word suggestions and Extensibility, which allows for easier sharing of content between apps. Third-party developers got additional features to integrate their apps deeper into the operating system, including support for widgets in the Notification Center, and the ability to make keyboards that users can replace the default iOS keyboard with.
App updates in the release included the new
Health
Health has a variety of definitions, which have been used for different purposes over time. In general, it refers to physical and emotional well-being, especially that associated with normal functioning of the human body, absent of disease, p ...
app, which can aggregate data from different fitness apps, as well as enabling a Medical ID accessible on the lock screen for emergencies, support for
iCloud Photo Library in the Photos app, which enables photos to be synchronized and stored in the
cloud, and
iCloud Drive, which lets users store files in the cloud and browse them across devices. In iOS 8.4, Apple updated its Music app with a streaming service called
Apple Music
Apple Music is an audio and video streaming service developed by Apple Inc. Users can select music to stream to their device on-demand, or listen to existing playlists. The service also includes the sister internet radio stations Apple Musi ...
, and a 24-hour radio station called
Apple Music 1
Apple Music 1, previously branded as Beats 1, is a 24/7 music radio station owned and operated by Apple Inc. It is accessible through iTunes or the Apple Music app on a computer, smartphone or tablet, smart speaker (such as the Apple HomePod), a ...
.
iOS 8 was well received. Critics praised Continuity and Extensibility as major features enabling easier control and interaction between different apps and devices. They also liked the QuickType keyboard word suggestions, and highlighted Spotlight Suggestions for making the iPhone "almost a portable search portal for everything.” However, reviewers noted that the full potential for iOS 8 would only be realized once third-party developers integrated their apps to support new features, particularly widgets in the Notification Center.
Roughly a week after release, iOS 8 had reached 46% of iOS usage share. In October 2014, it was reported that the adoption rate had "stalled,” only increasing by "a single percentage point" from the previous month. This situation was blamed on the requirement of a high amount of free storage space to install the upgrade, especially difficult for iPhones sold with 8 or 16
gigabyte
The gigabyte () is a multiple of the unit byte for digital information. The SI prefix, prefix ''giga-, giga'' means 109 in the International System of Units (SI). Therefore, one gigabyte is one billion bytes. The unit symbol for the gigabyte i ...
s of maximum storage space. The following December, iOS 8 had reached 63% usage share, a notable 16% increase from the October measurement.
History
Introduction and initial release
iOS 8 was introduced at the company's
Worldwide Developers Conference
The Worldwide Developers Conference (WWDC) is an information technology conference held annually by Apple Inc. The conference is currently held at Apple Park in California. The event is used to showcase new software and technologies in the macO ...
on June 2, 2014, with the first beta made available to conference attendees after the keynote presentation.
iOS 8 was officially released on September 17, 2014.
System features
Continuity
iOS 8 introduced Continuity, a cross-platform (
Mac,
iPhone
The iPhone is a line of smartphones developed and marketed by Apple that run iOS, the company's own mobile operating system. The first-generation iPhone was announced by then–Apple CEO and co-founder Steve Jobs on January 9, 2007, at ...
, and
iPad
The iPad is a brand of tablet computers developed and marketed by Apple Inc., Apple that run the company's mobile operating systems iOS and later iPadOS. The IPad (1st generation), first-generation iPad was introduced on January 27, 2010. ...
) system that enables communication between devices in different product categories. Continuity enables phone call functionality for the iPad and Mac, in which calls are routed through the iPhone over to a secondary device. The secondary device then serves as a speaker phone. This also brings
SMS support to the iPad and Mac, an extension of the
iMessage feature in previous versions.
Continuity adds a feature called "Handoff," that lets users start a task on one device and continue on another, such as composing an e-mail on the iPhone and then continuing it on the iPad before sending it on the Mac. In order to support Handoff and Continuity, Macs needed to have the
OS X Yosemite operating system, which was released in October 2014, as well as support for
Bluetooth low energy.
Spotlight
iOS 8 introduced
Spotlight Suggestions, a new search feature that integrates with many websites and services to show more detailed search results, including snippets of Wikipedia articles, local news, quick access to apps installed on the device,
iTunes
iTunes is a media player, media library, and mobile device management (MDM) utility developed by Apple. It is used to purchase, play, download and organize digital multimedia on personal computers running the macOS and Windows operating s ...
content, movie showtimes, nearby places, and info from various websites. Spotlight Suggestions are available on the iOS home screen as well as in the
Safari web browser search bar.
Notifications
The drop-down Notification Center has now been redesigned to allow widget functionality. Third-party developers can add widget support to their apps that let users see information in the Notification Center without having to open each respective app. Users can add, rearrange, or remove any widgets, at any time. Examples of widgets include a Weather app showing current weather, and a Calendar app showing upcoming events.
Notifications are now actionable, allowing users to reply to a message while it appears as a quick drop-down, or act on a notification through the Notification Center.
Keyboard
iOS 8 includes a new predictive typing feature called QuickType, which displays word predictions above the keyboard as the user types.
Apple now allows third-party developers to make keyboard apps that users can replace the default iOS keyboard with. For added privacy, Apple added a settings toggle called "Allow Full Access", that optionally enables the keyboard to act outside its
app sandbox, such as synchronizing keyboard data to the cloud, third-party keyboards are not allowed to use
Siri
Siri ( , backronym: Speech Interpretation and Recognition Interface) is a digital assistant purchased, developed, and popularized by Apple Inc., which is included in the iOS, iPadOS, watchOS, macOS, Apple TV, audioOS, and visionOS operating sys ...
for voice dictation, and some secure text fields do not allow input.
Family Sharing
iOS 8 introduced Family Sharing, which allows up to 6 people to register unique iTunes accounts that are then linked together, with one parent becoming the administrator, controlling the overall experience. Purchases made on one account can be shared with the other family members, but purchases made by kids under 13 years of age require parental approval. Purchases made by adults will not be visible for the kids at all.
Family Sharing also extends into apps, a Shared album is automatically generated in the Photos app of each family member, allowing everyone to add photos, videos, and comments to a shared place. An Ask to Buy feature allows anyone to request the purchase of items in the App Store, iTunes Store, and iBooks Store, as well as in-app purchases and iCloud storage, with the administrator having the option to either approve or deny the purchase.
Multitasking
The multitasking screen shows a list of recently called and favorited contacts. The feature can be turned off in Settings.
Other
iOS 8 includes an additional data
roaming option in Settings for European users, allowing greater control over data usage abroad.
The
Siri
Siri ( , backronym: Speech Interpretation and Recognition Interface) is a digital assistant purchased, developed, and popularized by Apple Inc., which is included in the iOS, iPadOS, watchOS, macOS, Apple TV, audioOS, and visionOS operating sys ...
personal voice assistant now has integrated
Shazam support. Asking Siri "What song is this?" will identify what song is playing.
Wi-Fi calling has been added to allow mobile phone calls over
Wi-Fi
Wi-Fi () is a family of wireless network protocols based on the IEEE 802.11 family of standards, which are commonly used for Wireless LAN, local area networking of devices and Internet access, allowing nearby digital devices to exchange data by ...
. Mobile operator carriers can then enable the Voice-over-Wi-Fi functionality in their services.
App features
Photos and Camera
Camera app
The Camera app gets two new features; time-lapse and self-timer.
Time-lapse records frames at shorter intervals than normal film frequencies and builds them into movies, showing events in a faster speed. Self-timer gives the user the option of a three-second or ten-second countdown before automatically taking a photo.
iPad
The iPad is a brand of tablet computers developed and marketed by Apple Inc., Apple that run the company's mobile operating systems iOS and later iPadOS. The IPad (1st generation), first-generation iPad was introduced on January 27, 2010. ...
s can now take pictures in panoramic mode.
iCloud Photo Library
iOS 8 added
iCloud Photo Library support to the
Photos app, enabling photo synchronization between different Apple devices. Photos and videos were backed up in full resolution and in their original formats. This feature almost meant that lower-quality versions of photos could be
cached on the device rather than the full-size images, potentially saving significant storage space on models with limited storage availability.
Search
The Photos app received better search, with different search categorization options, including Nearby, One Year Ago, Favorites, and Home, based on
geolocation
Geopositioning is the process of determining or estimating the geographic position of an object or a person.
Geopositioning yields a set of Geographic coordinate system, geographic coordinates (such as latitude and longitude) in a given map datum ...
and date of photo capture.
Editing
Additionally, the Photos app gained more precise editing controls, including improved rotation; one-touch auto-enhancement tools; and deeper color adjustments, such as brightness, contrast, exposure, and shadows.
There is also an option to hide a photo without deleting it.
Extensions
Apple added an Extensibility feature in iOS 8, that allows filters and effects from third-party apps to be accessed directly from within a menu in the standard Photos app, rather than having to import and export photos through each respective app to apply effects.
Camera Roll
In the initial release of iOS 8, Apple removed the "Camera Roll" feature from the Photos app. Camera Roll was an overview of all photos on the device, but was replaced by a "Recently Added" photo view displaying photos by how recently the user captured them.
Despite being replaced by a "Recently Added" album, the removal of Camera Roll sparked user complaints, which Apple returned the feature in the iOS 8.1 update.
Messages
In iOS 8,
Messages gets new features for group conversations, including a Do Not Disturb mode that disables conversation notifications, as well as the ability to remove participants from the chat. A new Tap to Talk chat button lets users send quick voice comments to a recipient, and a Record button allows users to record short videos.
For interaction between two Apple users, the Messages app allows users to send short picture, video or audio clips with a 2-minute expiration time.
In the Settings app, the user has the option to have messages be automatically deleted after a certain time period.
Safari
In the
Safari web browser, developers can now add support for Safari Password Sharing, which allows them to share credentials between sites they own and apps they own, potentially cutting down on the number of times users need to type in credentials for their apps and services. The browser also adds support for the
WebGL graphics
API
An application programming interface (API) is a connection between computers or between computer programs. It is a type of software interface, offering a service to other pieces of software. A document or standard that describes how to build ...
.
iCloud Drive
In a similar style as a
file manager
A file manager or file browser is a computer program that provides a user interface to manage computer files, files and folder (computing), folders. The most common Computer file#Operations, operations performed on files or groups of files incl ...
, the
iCloud Drive is a
file hosting service that, once enabled in Settings, lets users save any kind of file in the app, and the media is synchronized to other iOS devices, as well as the Mac.
App Store
In iOS 8, Apple updated
App Store with an "Explore" tab providing improved app discovery, trending searches in the "Search" tab, and the ability for developers to bundle multiple apps into a single discounted package. New "preview" videos allow developers to visually show an app's function.
Health
HealthKit is a service that allows developers to make apps that integrate with the new Health app. The Health app primarily aggregates data from
fitness apps installed on the user's device, except for steps and flights climbed, which are tracked through the motion processor on the user's iPhone. Users can enter their medical history in Medical ID, which is accessible on the lock screen, in case of an emergency.
HomeKit
HomeKit serves as a
software framework
In computer programming, a software framework is a software abstraction that provides generic functionality which developers can extend with custom code to create applications. It establishes a standard foundation for building and deploying soft ...
that lets users set up their iPhone to configure, communicate with, and control
smart-home appliances. By designing rooms, items and actions in the HomeKit service, users can enable automatic actions in the house through a simple voice dictation to Siri or through apps.
Manufacturers of HomeKit-enabled devices are required to purchase a license, and all HomeKit products are required to have an encryption co-processor. Equipment manufactured without HomeKit-support can be enabled for use through a "gateway" product, such as a hub that connects between those devices and the HomeKit service.
Passbook
The Passbook app on iOS 8 was updated to support
Apple Pay, a digital payment service, available on
iPhone 6 and 6 Plus with the release of iOS 8.1.
Music
A new music streaming service,
Apple Music
Apple Music is an audio and video streaming service developed by Apple Inc. Users can select music to stream to their device on-demand, or listen to existing playlists. The service also includes the sister internet radio stations Apple Musi ...
, was introduced in the iOS 8.4 update. It allows subscribers to listen to an unlimited number of songs on-demand through subscriptions. With the release of the music service, the standard Music app on iOS was revamped both visually and functionally to include Apple Music, as well as the 24-hour live radio station
Beats 1.
Notes
Notes received
rich text editing support, with the ability to bold, italicize or underline text; and image support, allowing users to post photos in the app.
Weather
The
Weather
Weather is the state of the atmosphere, describing for example the degree to which it is hot or cold, wet or dry, calm or stormy, clear or cloud cover, cloudy. On Earth, most weather phenomena occur in the lowest layer of the planet's atmo ...
app now uses weather data from
The Weather Channel
The Weather Channel (TWC) is an American pay television television channel, channel owned by Weather Group, LLC, a subsidiary of Allen Media Group. The channel's headquarters are located in Atlanta, Georgia. Launched on May 2, 1982, the channel ...
instead of
Yahoo!
Yahoo (, styled yahoo''!'' in its logo) is an American web portal that provides the search engine Yahoo Search and related services including My Yahoo, Yahoo Mail, Yahoo News, Yahoo Finance, Yahoo Sports, y!entertainment, yahoo!life, and its a ...
. The app also received slight changes in the user interface. In March 2019, Yahoo! ended support for the Weather app on iOS 7 and earlier.
Tips
iOS 8 added a new "Tips" app, that shows tips and brief information about the features in iOS on a weekly basis.
Touch ID
iOS 8 allows
Touch ID to be used in third-party apps.
Reception
iOS 8 received positive reviews. Brad Molen of ''
Engadget
Engadget ( ) is a technology news, reviews and analysis website offering daily coverage of gadgets, consumer electronics, video games, gaming hardware, apps, social media, streaming, AI, space, robotics, electric vehicles and other potentially ...
'' highlighted Continuity as a major advancement for users with multiple Apple devices. He also praised the Extensibility feature, allowing apps to share data, and liked the support for third-party keyboards. However, Molen noted that some of the new introductions - Family Sharing, Continuity, and iCloud Drive - require further diving into the Apple ecosystem to work. He particularly enjoyed actionable notifications and third-party widget support in Notification Center. Charles Arthur of ''
The Guardian
''The Guardian'' is a British daily newspaper. It was founded in Manchester in 1821 as ''The Manchester Guardian'' and changed its name in 1959, followed by a move to London. Along with its sister paper, ''The Guardian Weekly'', ''The Guardi ...
'' also liked Extensibility, as well as the new QuickType word suggestions functionality in the iOS keyboard. He criticized the lack of an option for choosing default apps, and he also criticized the Settings menu for being confusing and unintuitive.
Darrell Etherington of ''
TechCrunch
TechCrunch is an American global online newspaper focusing on topics regarding high tech, high-tech and Startup company, startup companies. It was founded in June 2005 by Archimedes Ventures, led by partners Michael Arrington and Keith Teare.
I ...
'' praised the improvements to iMessage, writing: "Best for me has been the ability to mute and leave group conversations, which is something I've been sorely missing since the introduction of group iMessage conversations." He liked the new search and editing features in Photos, and the QuickType feature in the keyboard, but particularly highlighted Spotlight Suggestions as "one of the better features of iOS 8, even if it's a small service addition," noting that "it makes your iPhone almost a portable search portal for everything." Martin Bryant of ''The Next Web'' wrote that "The real advances here are yet to come," adding that "Apple has included demonstrations of what can be done, but the true power of what's under the hood will be realized over the coming days, weeks and months" as third-party developers gradually incorporate new features into their apps.
On September 23, 2014, "roughly a week" after the release of iOS 8, user adoption of iOS 8 had reached 46%. In October 2014, Andrew Cunningham of ''
Ars Technica
''Ars Technica'' is a website covering news and opinions in technology, science, politics, and society, created by Ken Fisher and Jon Stokes in 1998. It publishes news, reviews, and guides on issues such as computer hardware and software, sci ...
'' reported that iOS 8 user adoption rate had "stalled," only climbing "a single percentage point" since the previous September measurement of 46%. Cunningham blamed the "
over-the-air" update requiring 5
gigabyte
The gigabyte () is a multiple of the unit byte for digital information. The SI prefix, prefix ''giga-, giga'' means 109 in the International System of Units (SI). Therefore, one gigabyte is one billion bytes. The unit symbol for the gigabyte i ...
s to install, an "unusually large amount" that may have posed challenges to those using 8 gigabyte and 16 gigabyte devices. As an alternative, Apple offered the update via its
iTunes
iTunes is a media player, media library, and mobile device management (MDM) utility developed by Apple. It is used to purchase, play, download and organize digital multimedia on personal computers running the macOS and Windows operating s ...
software, but Cunningham noted that "An iTunes hookup is going to be even more out of the way these days than it was a few years ago, not least because Apple has spent the last three years coaching people to use their iDevices independently of their computers." In December, a new report from ''Ars Technica'' stated that iOS 8 usage had increased to 63%, up "a solid 16 percent."
Problems
App crash rate
A study by
Apteligent (formerly Crittercism) found that the rate at which apps crashed in their tests was 3.56% on iOS 8, higher than the 2% found on iOS 7.1.
8.0.1 update issues
In September 2014, the iOS 8.0.1 update caused significant issues with
Touch ID on
iPhone 6 and cellular network connectivity on some models. Apple stated that affected users should reinstall the initial iOS 8 release until version 8.0.2 was ready.
iOS 8.0.2 was released one day after 8.0.1, with a fix for issues caused by the 8.0.1 update.
Miscellaneous bugs
''
Forbes
''Forbes'' () is an American business magazine founded by B. C. Forbes in 1917. It has been owned by the Hong Kong–based investment group Integrated Whale Media Investments since 2014. Its chairman and editor-in-chief is Steve Forbes. The co ...
'' published several articles focusing on problems in iOS 8 regarding Wi-Fi and battery, Bluetooth, and calendar.
"Effective power" text message crash
In May 2015, news outlets reported on a bug where receiving a text message with a specific combination of symbols and Arabic characters, caused the Messages application to crash and the iPhone to reboot.
The bug, named "effective power," could potentially continuously reboot a device if the message was visible on the lock screen.
The flaw was exploited for the purpose of
trolling, by intentionally causing others' phones to crash.
The bug was fixed in iOS 8.4, an update released in June 2015.
Once a device is upgraded to iOS 8, it is impossible to downgrade it back to iOS 7.
Hoaxes
"Apple Wave" microwave charging
In September 2014, a
hoax
A hoax (plural: hoaxes) is a widely publicised falsehood created to deceive its audience with false and often astonishing information, with the either malicious or humorous intent of causing shock and interest in as many people as possible.
S ...
Apple advertisement for an alleged feature of iOS 8 called "Wave" circulated on
Twitter
Twitter, officially known as X since 2023, is an American microblogging and social networking service. It is one of the world's largest social media platforms and one of the most-visited websites. Users can share short text messages, image ...
, which promised users that they would be able to recharge their iPhone by heating it in a
microwave oven
A microwave oven, or simply microwave, is an electric oven that heats and cooks food by exposing it to electromagnetic radiation in the microwave frequency range. This induces Dipole#Molecular dipoles, polar molecules in the food to rotate and ...
. This feature did not exist, and the media cited numerous people reporting on Twitter that they had destroyed their iPhones by following the procedure described in the advertisement.
The hoax had originated from
4chan, an anonymous imageboard and forum website.
Supported devices
iOS 8 supports devices with an
Apple A5
The Apple A5 is a 32-bit system on a chip (SoC) designed by Apple Inc., part of the Apple silicon series, and manufactured by Samsung. The first product Apple featured an A5 in was the iPad 2. Apple claimed during their media event on March 2, 2 ...
or higher
SoC. Apple dropped support for the
iPhone 4
The iPhone 4 is a smartphone that was developed and marketed by Apple Inc. It is the List of iPhone models, fourth generation of the iPhone lineup, succeeding the iPhone 3GS and preceding the iPhone 4s. Following a number of notable leaks, ...
.
iPhone
*
iPhone 4s
*
iPhone 5
The iPhone 5 is a smartphone that was developed and marketed by Apple Inc. It is the List of iPhone models, 6th generation iPhone, succeeding the iPhone 4s, and preceding both the iPhone 5s and iPhone 5c. It was formally unveiled as part of ...
*
iPhone 5c
*
iPhone 5s
*
iPhone 6 & 6 Plus
iPod Touch
*
iPod Touch (5th generation)
*
iPod Touch (6th generation)
iPad
*
iPad 2
*
iPad (3rd generation)
*
iPad (4th generation)
*
iPad Air (1st generation)
*
iPad Air 2
*
iPad Mini (1st generation)
*
iPad Mini 2
*
iPad Mini 3
Version history
See also
*
OS X Yosemite
*
Apple TV Software 7
References
External links
*
{{Apple
*8
2014 software
Products introduced in 2014
Mobile operating systems
Tablet operating systems
Proprietary operating systems