Apple's U.S. iPhone User Base Sees Slowing Growth in Q1 2019

Apple's estimated U.S. iPhone installed base saw little growth in the first calendar quarter of (second fiscal quarter) of 2019, according to new data shared today by Consumer Intelligence Research Partners (CIRP).

As of March 30, 2019, the U.S. ‌iPhone‌ use base hit 193 million units, compared to 189 million units at the end of the December quarter, marking two percent growth quarter over quarter.

usinstalledbaseiphonecirp
Apple's ‌iPhone‌ user base was at 173 million units at the end of the March 2018 quarter, for year over year growth of 12 percent, which is not bad, but not quite hitting the growth rates of prior years.

A year ago, the installed ‌iPhone‌ user base in the U.S. grew four percent quarter over quarter and 19 percent compared to the prior year, indicating a plateau ‌iPhone‌ user base.

"The US installed base of iPhones continues to plateau," said Josh Lowitz, CIRP Partner and Co-Founder. "Relative to the most recent quarters, and especially to the past two or three years, slowing unit sales and longer ownership periods means that the growth in the number of US iPhones has flattened considerably. Of course, 12% growth in a year, after years of much greater growth is still good. However, investors grew accustomed to quarterly growth of 5% or more, and annual growth of almost 20%. This continuing trend prompts investors to wonder if iPhone sales outside of the US will compensate, and places greater pressure on Apple's determination to sell other products and services to the installed base of iPhone owners."

CIRP's estimated U.S. ‌iPhone‌ installed base is based on estimated worldwide ‌iPhone‌ sales of 39 million, calculated from Apple's ‌iPhone‌ revenue and average ‌iPhone‌ selling price for the quarter ending in March 2019.

‌iPhone‌ sales have slowed down, and in January, the decline in sales over the holiday period led Apple to make the rare move of lowering its expected revenue guidance. Apple also saw a dip in revenue in the second fiscal quarter (first calendar quarter) of 2019, bringing in $58 billion, compared to $61.1 billion in the year-ago quarter.

Apple has never provided a specific breakdown of the number of active devices in the United States, but earlier this year, the company said there were 1.4 billion active devices around the world. 900 million of those devices are iPhones.

Tag: CIRP

Popular Stories

iOS 26

When Will Apple Release iOS 26.2?

Monday December 1, 2025 4:37 pm PST by
We're getting closer to the launch of the final major iOS update of the year, with Apple set to release iOS 26.2 in December. We've had three betas so far and are expecting a fourth beta or a release candidate this week, so a launch could follow as soon as next week. Past Launch Dates Apple's past iOS x.2 updates from the last few years have all happened right around the middle of the...
ios 18 to ios 26 upgrade

Apple Pushes iPhone Users Still on iOS 18 to Upgrade to iOS 26

Tuesday December 2, 2025 11:09 am PST by
Apple is encouraging iPhone users who are still running iOS 18 to upgrade to iOS 26 by making the iOS 26 software upgrade option more prominent. Since iOS 26 launched in September, it has been displayed as an optional upgrade at the bottom of the Software Update interface in the Settings app. iOS 18 has been the default operating system option, and users running iOS 18 have seen iOS 18...
maxresdefault

iPhone Fold: Launch, Pricing, and What to Expect From Apple's Foldable

Monday December 1, 2025 3:00 am PST by
Apple is expected to launch a new foldable iPhone next year, based on multiple rumors and credible sources. The long-awaited device has been rumored for years now, but signs increasingly suggest that 2026 could indeed be the year that Apple releases its first foldable device. Subscribe to the MacRumors YouTube channel for more videos. Below, we've collated an updated set of key details that ...
iphone 17 cyber

iPhone 17 Demand Is Breaking Apple's Sales Records

Tuesday December 2, 2025 9:44 am PST by
Apple's iPhone 17 lineup is selling well enough that Apple is on track to ship more than 247.4 million total iPhones in 2025, according to a new report from IDC. Total 2025 shipments are forecast to grow 6.1 percent year over year due to iPhone 17 demand and increased sales in China, a major market for Apple. Overall worldwide smartphone shipments across Android and iOS are forecast to...
iOS 26

Apple Seeds iOS 26.2 and iPadOS 26.2 Release Candidates to Developers and Public Beta Testers

Wednesday December 3, 2025 10:33 am PST by
Apple today seeded the release candidate versions of upcoming iOS 26.2 and iPadOS 26.2 updates to developers and public beta testers, with the software coming two weeks after Apple seeded the third betas. The release candidates represent the final versions of iOS 26.2 and iPadOS 26.2 that will be provided to the public if no further bugs are found during this final week of testing....
Photos App Icon Liquid Glass

John Gruber Shares Scathing Commentary About Apple's Departing Software Design Chief

Thursday December 4, 2025 9:30 am PST by
In a statement shared with Bloomberg on Wednesday, Apple confirmed that its software design chief Alan Dye will be leaving. Apple said Dye will be succeeded by Stephen Lemay, who has been a software designer at the company since 1999. Meta CEO Mark Zuckerberg announced that Dye will lead a new creative studio within the company's AR/VR division Reality Labs. On his blog Daring Fireball,...
Touchscreen MacBook Feature

Here Are the Four MacBooks Apple Is Expected to Launch Next Year

Monday December 1, 2025 5:00 am PST by
2026 could be a bumper year for Apple's Mac lineup, with the company expected to announce as many as four separate MacBook launches. Rumors suggest Apple will court both ends of the consumer spectrum, with more affordable options for students and feature-rich premium lines for users that seek the highest specifications from a laptop. Below is a breakdown of what we're expecting over the next ...
iphone air camera

iPhone Air's Resale Value Has Dropped Dramatically, Data Shows

Thursday December 4, 2025 5:27 am PST by
The iPhone Air has recorded the steepest early resale value drop of any iPhone model in years, with new data showing that several configurations have lost almost 50% of their value within ten weeks of launch. According to a ten-week analysis published by SellCell, Apple's latest lineup is showing a pronounced split in resale performance between the iPhone 17 models and the iPhone Air....
iPhone 17 Pro Cosmic Orange

iPhone 17 Pro Lost a Camera Feature Pro Models Have Had Since 2020

Thursday December 4, 2025 5:18 am PST by
iPhone 17 Pro models, it turns out, can't take photos in Night mode when Portrait mode is selected in the Camera app – a capability that's been available on Apple's Pro devices since the iPhone 12 Pro in 2020. If you're an iPhone 17 Pro or iPhone 17 Pro Max owner, try it for yourself: Open the Camera app with Photo selected in the carousel, then cover the rear lenses with your hand to...
chatgpt logo

Sam Altman Declares 'Code Red' for ChatGPT, Delays OpenAI Advertising Plans

Tuesday December 2, 2025 3:30 pm PST by
OpenAI is deprioritizing work on advertising as it focuses on improving the quality of ChatGPT, reports The Information. OpenAI CEO Sam Altman declared a "code red" on Monday, and told employees that the company needs to improve ChatGPT so it doesn't fall behind competitors like Google and Anthropic. Altman said that OpenAI needs to work on personalization for each user, image generation,...

Top Rated Comments

smaffei Avatar
86 months ago
Considering that there is 327 million people in the US. 50 million are 11 years old or below (don't know many people who are buying phones for their 9 year old).… That means roughly 70% of the phone buying population in the US owns an iPhone. I don't think you can expect bigger increases after hitting that landmark.
Score: 43 Votes (Like | Disagree)
69Mustang Avatar
86 months ago
That means roughly 70% of the phone buying population in the US owns an iPhone.
That's not a conclusion that you can reach based on the data provided. It would be like saying Apple has over a billion active devices worldwide therefore they have over a billion users worldwide.
Score: 17 Votes (Like | Disagree)
now i see it Avatar
86 months ago
There's a finite number of people who can afford these things.
Score: 16 Votes (Like | Disagree)
dgdosen Avatar
86 months ago
What app?
"What's App"
"That's what I asked, what app?"
"I just told you - What's App"
"Now look, what's the name of the app that caused your phone to heat up?"
"Exactly!"

cc: Abott and Costello
Score: 15 Votes (Like | Disagree)
citysnaps Avatar
86 months ago
For the average consumer, what does Apple have that the competition sorely lacks nowadays? Having FaceID did not make consumers switch to an iPhone. My phone does not have the feature, but if it did it will be the first thing to disable/bypass. A passcode is more secure than a thumbprint or FaceID. Think about it for a minute!
For the average consumer:

1. iOS

2. Tight integration/sharing data between Apple iOS/macOS/watchOS/tvOS apps.

3. Outstanding premium devices that many millions of satisfied repeat customers are willing to open their wallets and purchase year after year after year.

4. Excellent and highly rated customer service.

5. Frequent software updates.

6. Apple placing high regard on privacy and security.

7. Various Apple services that work well with devices.

8. Apple Stores.

9. Relatively decent resale value.

That's just a few that quickly come to mind.
Score: 14 Votes (Like | Disagree)
xalea Avatar
86 months ago
I guess that's what happens when the price goes from $500 to $1300 in the span of a few years.
Score: 14 Votes (Like | Disagree)