How Many iPhone Users Are on iOS 18 and iOS 17? A Deep Dive into Adoption Rates

Did you know that within just weeks of a new iOS release, the majority of iPhone users typically update their devices? This remarkable adoption rate sets Apple apart in the mobile ecosystem and creates a more unified experience for both users and developers.

Let‘s take a closer look at exactly how iOS 17 and iOS 18 are performing in the real world, what‘s driving these adoption patterns, and what it means for the future of mobile operating systems.

The Current State of iOS Adoption: By the Numbers

iOS 17 Adoption Rate: A Statistical Overview

According to Apple‘s latest data from their App Store measurements, iOS 17 has achieved an impressive adoption rate since its public release in September 2022. For iPhones introduced in the last four years, approximately 81% are now running iOS 17, while about 15% remain on iOS 16, and just 4% are using earlier versions.

When looking at all iPhone devices still in active use (including older models), roughly 72% are running iOS 17, 20% are on iOS 16, and 8% continue to use older iOS versions.

Third-party analytics firm Mixpanel provides slightly different numbers, suggesting iOS 17 adoption reached 78% across all compatible devices by March 2023, which aligns closely with Apple‘s official figures when accounting for methodology differences.

iOS 17 vs. Previous Releases: Historical Comparison

A long-term view of iOS adoption rates reveals interesting patterns:

iOS Version1 Week1 Month3 Months6 Months1 Year
iOS 1719.3%48.7%65.2%72.1%76.8%
iOS 1620.1%52.6%68.9%76.3%81.5%
iOS 1519.7%44.3%62.8%72.0%79.7%
iOS 1426.5%60.2%79.5%85.2%90.3%
iOS 1320.9%50.4%70.1%77.6%81.8%

The data reveals that iOS 17‘s adoption curve followed a similar trajectory to iOS 15, slightly behind iOS 16, and notably slower than the exceptional adoption of iOS 14. The iOS 14 surge can be attributed to pandemic-related factors, with people spending more time on their devices and the introduction of significant home screen customization features.

Geographic Distribution of iOS 17 Users

Adoption rates show significant regional variation:

RegioniOS 17 AdoptioniOS 16Earlier Versions
North America78.6%16.2%5.2%
Europe74.3%19.8%5.9%
Japan & South Korea71.2%22.5%6.3%
China65.8%24.7%9.5%
Australia & New Zealand79.1%15.7%5.2%
India58.6%27.9%13.5%
South America62.4%25.3%12.3%
Middle East67.8%23.1%9.1%
Southeast Asia59.3%28.4%12.3%

This data reveals adoption is highest in primarily English-speaking, high-income countries and lowest in developing markets. Data from App Annie (now data.ai) suggests economic factors, bandwidth limitations, and market-specific technological ecosystems all influence regional adoption patterns.

The iOS 17 Adoption Timeline: A Closer Look

Launch Week: The Initial Rush

When iOS 17 launched on September 20, 2022, it saw approximately 19.3% adoption within the first 48 hours, according to data from multiple analytics firms including Mixpanel and Statcounter. This represented roughly 230 million devices updating almost immediately.

The initial adoption rush typically comes from:

  • Tech enthusiasts eager to try new features
  • Automatic overnight updates for users who enabled this option
  • Media coverage driving awareness

Notably, this launch week adoption was slightly lower than iOS 16‘s 20.1% initial surge, which some analysts attribute to user caution following reports of battery drain issues in early iOS 16 builds.

The First Month: Reaching Critical Mass

By the four-week mark, iOS 17 had reached approximately 48.7% of all compatible iPhones. This represented the crucial tipping point where developers typically begin prioritizing the new operating system for app development and optimization.

Key drivers during this period included:

  • Positive word-of-mouth from early adopters
  • Resolution of initial minor bugs through iOS 17.0.1 and 17.0.2 updates
  • App developers promoting iOS 17-specific features
  • Retail store staff recommending updates during customer interactions

The 90-Day Benchmark: Mainstream Adoption

After three months, iOS 17 adoption pushed past 65.2% of all active iPhone devices. According to mobile analytics firm Flurry, this is when most businesses consider the new iOS version to be the "standard" for the Apple ecosystem.

The quarterly Apple earnings call in January 2023 highlighted this adoption milestone, with CEO Tim Cook noting that iOS 17 was seeing "strong engagement from our user base."

Current Status: Maturity Phase

Six months after release, iOS 17 reached the previously mentioned 72.1% adoption rate across all devices. This steady climb represents the "maturity phase" of the adoption curve, where updates continue at a slower but consistent pace.

Data from device management firm Jamf indicates that among enterprise users, iOS 17 adoption reached 68% during this same period—slightly lower than consumer adoption due to IT department validation processes.

Device-Specific Adoption Patterns

Adoption Rate by iPhone Model

Analytics from DeviceAtlas and Localytics provide insight into how different iPhone models have adopted iOS 17:

Device ModeliOS 17 AdoptionAverage Time to Update
iPhone 14 Pro/Max96.8%12 days
iPhone 1494.5%14 days
iPhone 13 Pro/Max92.4%16 days
iPhone 1388.6%21 days
iPhone 12 Pro/Max85.3%24 days
iPhone 1282.7%28 days
iPhone 11 Pro/Max77.1%35 days
iPhone 1172.6%42 days
iPhone XS/XS Max58.3%67 days
iPhone XR53.2%75 days
iPhone SE (3rd gen)68.9%45 days
iPhone SE (2nd gen)51.7%82 days

This data reveals a clear correlation between device age/premium status and update behavior. Newer and higher-end models see faster and more complete adoption rates, likely due to:

  1. More storage space available for the update
  2. Better performance capabilities to handle new features
  3. Users of premium models typically being more tech-engaged
  4. Newer devices having longer projected lifespans, making updates more worthwhile

Storage Capacity and Adoption Rate

An interesting correlation appears when comparing adoption rates to device storage capacity:

Device StorageiOS 17 Adoption RatePercentage of User Base
64GB or less58.3%31.4%
128GB74.6%42.7%
256GB86.2%18.9%
512GB or more94.1%7.0%

This data, compiled from Mixpanel and Consumer Intelligence Research Partners (CIRP) research, shows that higher storage capacity strongly correlates with faster adoption. The iOS 17 installation package, requiring approximately 3.5GB of free space, presents a significant barrier for users with smaller storage configurations.

What Drove iOS 17 Adoption: Feature Analysis

Key Feature Impact Analysis

Based on user surveys conducted by research firms J.D. Power and YouGov, certain iOS 17 features had outsized influence on users‘ decisions to update:

FeatureUser AwarenessCited as Update ReasonSatisfaction Rating
Customizable Lock Screen86%64%4.2/5
Interactive Widgets79%58%4.0/5
Enhanced Messages Features72%51%3.9/5
Privacy Improvements65%47%4.5/5
Health App Enhancements48%29%3.8/5
Focus Mode Improvements44%25%3.7/5
Mail App Updates39%18%3.5/5

The customizable lock screen and interactive widgets—both highly visible features—drove the highest awareness and update motivation, while privacy improvements, though less visible, scored highest in user satisfaction.

Performance Improvements: The Hidden Driver

While flashy new features often get the attention, performance improvements significantly influence update decisions, particularly for older device owners.

Data from Geekbench and battery testing by multiple tech publications showed:

  • 7-11% improved battery life on iPhone 12/13 models with iOS 17.1
  • 9% faster app launch times across tested devices
  • 15% reduction in RAM usage for background processes
  • 22% faster camera launch and capture speed

These "invisible" improvements drove updates among users who might otherwise hesitate to adopt new software versions, especially after the iOS 17.1 update addressed initial battery concerns from the .0 release.

iOS 17 Adoption Demographics: Who Updates First?

Age Group Analysis

Market research firm Kantar Worldpanel provided these insights into iOS 17 adoption by age demographic six months post-release:

Age GroupiOS 17 AdoptionPrimary Update Motivator
18-2483.6%Social media features
25-3479.2%Productivity tools
35-4474.7%Privacy/security
45-5467.4%Performance improvements
55-6459.8%Ease of use updates
65+51.2%Safety features

Younger users consistently update faster than older demographics, though the gap has narrowed compared to previous iOS releases. This suggests Apple‘s efforts to make updates more accessible and less intimidating to less tech-savvy users are working.

Technical Sophistication Factor

A survey by tech education platform Stack Overflow found correlations between technical knowledge and update behavior:

  • Self-identified "tech enthusiasts" had a 91% iOS 17 adoption rate
  • Those identifying as "average users" showed 68% adoption
  • Self-described "reluctant tech users" had 42% adoption

This underscores the importance of making updates both appealing to enthusiasts and accessible to mainstream users.

The iOS 17 Update Cycle: Multiple Iterations

The iOS 17 journey didn‘t stop at the initial release. Apple has continued refining the experience through point updates, each influencing the overall adoption curve:

iOS 17.0.1 and 17.0.2: Emergency Fixes

Released within days of the initial launch, these minor updates addressed critical bugs, including a vulnerability that could allow unauthorized access to photos from the lock screen and a connectivity issue affecting certain carriers.

These rapid-response fixes helped maintain update momentum by addressing concerns that might have caused users to delay updating.

iOS 17.1: The First Major Update (October 2022)

This update, arriving approximately one month after initial release, brought refinements to:

  • Wallet app with expanded tracking capabilities
  • Music app with new playlist creation tools
  • AirDrop improvements

Data from Mixpanel showed a 5.2% jump in adoption the week this update was released, suggesting it convinced many hesitant updaters to make the move.

iOS 17.2: Feature Expansion (December 2022)

This mid-cycle update delivered:

  • The promised Journal app
  • Expanded SharePlay functionality
  • Communications Safety features for Messages
  • Digital car key sharing

This release saw iOS 17 adoption increase by 4.8% in the following two weeks, according to analytics firm Statcounter.

iOS 17.3: Security Focus (January 2023)

With an emphasis on security improvements, this update introduced:

  • Stolen Device Protection
  • Security fixes for WebKit vulnerabilities
  • Unity Wallpaper for Black History Month

Security-focused updates typically see lower immediate adoption spikes but help convince security-conscious holdouts to update.

iOS 17.4 and Beyond (March-June 2023)

The spring 2023 updates focused on:

  • EU Digital Markets Act compliance changes
  • New emoji
  • Apple Music Classical app
  • Podcast transcriptions

Each of these updates contributed to the steady climb in overall iOS 17 adoption, particularly in specific regions where certain features had greater relevance.

Comparing iOS and Android: The Adoption Gap

The contrast between iOS and Android adoption rates remains one of the most significant differences between the platforms:

VersioniOS Adoption (6 months)Android Adoption (6 months)
Current (17/13)72.1%14.7%
Previous (16/12)76.3%13.3%
Two versions back (15/11)72.0%24.9%

This adoption gap creates fundamentally different environments for developers and users:

  • iOS developers can typically focus on supporting just the latest 1-2 versions
  • Android developers often need to support 4-5 versions to reach a comparable user base
  • Security updates reach a much larger percentage of the iOS user base

According to Stack Overflow‘s 2023 Developer Survey, 61% of mobile developers cited Android fragmentation as a "major challenge" compared to just 14% who said the same about iOS development.

The Economic Impact of Fragmentation

Research firm App Annie (now data.ai) estimates that Android fragmentation costs developers approximately 38% more in testing and compatibility resources compared to iOS development.

For users, a report from cybersecurity firm Kaspersky found that Android devices running outdated OS versions were 5.2 times more likely to experience malware infections compared to updated devices. In the iOS ecosystem, this risk ratio was just 1.8 times higher for outdated devices.

Enterprise iOS 17 Adoption: Business Perspective

Enterprise environments present unique considerations for iOS updates. According to mobile device management firm Jamf‘s 2023 report:

IndustryiOS 17 Adoption (6 months)Primary Concern
Finance/Banking58.3%Security validation
Healthcare51.7%App compatibility
We will be happy to hear your thoughts

      Leave a reply

      TechUseful