Global mobile ad spend reached an estimated $402 billion in 2024, an 11% increase from 2023, and the bulk of that money never leaves the device. In the United States alone, internet advertising revenue hit a record $258.6 billion in 2024, a 14.9% year-over-year increase, and almost every dollar inside that figure is bought, served, or measured through a smartphone. The “mobile advertising” category that competitor sites still track as a standalone bucket has, in practice, become the substrate underneath every digital format.

GSMA’s State of Mobile Internet Connectivity Report 2025 counted 4.7 billion mobile-internet users globally, 58% of the world’s population, a ceiling that limits net-new audience growth. Dentsu’s December 2025 forecast projects global advertising spend to surpass $1 trillion for the first time in 2026, growing 5.1%, so revenue compounding has to come from ARPU and format conversion, not new users. The numbers below trace where the money is flowing, which platforms are absorbing it, and how the mobile digital marketing stack is performing inside the post-cookie, post-ATT measurement environment.

Key Takeaways

US internet advertising revenue reached $258.6 billion in 2024, a 14.9% year-over-year increase, the strongest growth since the 2021 record-year baseline.
Global mobile ad spend is projected to hit $402 billion in 2024, an 11% year-over-year increase from 2023’s $362 billion, driven by short-form video and creator-led monetisation.
Meta reported full-year 2024 advertising revenue of $160,633 million, with ad impressions across the Family of Apps up 11% and average price per ad up 10% year-over-year.
Alphabet’s 2024 Google advertising revenue reached $264.59 billion, with YouTube ad revenue at $36.1 billion, up from $31.5 billion in 2023.
TikTok generated an estimated $23.6 billion in worldwide ad revenue in 2024, more than double its 2022 figure, with $10+ billion coming from the United States alone.
Three years after Apple’s ATT rollout, iOS ad spend grew 28% from Q1 2023 to Q1 2024 versus only 5% for Android, reversing the iOS-is-dead-for-advertisers narrative.
Mobile commerce now accounts for 59% of global e-commerce sales, with mobile e-commerce projected to reach $4.39 trillion by 2030, pulling ad spend toward shoppable formats.

Editor’s Choice

US digital ad revenue 2024: $258.6 billion.
Global mobile ad spend 2024: $402 billion.
Meta full-year 2024 ad revenue: $160,633 million.
Alphabet 2024 Google ad revenue: $264.59 billion.
TikTok 2024 worldwide ad revenue: approximately $23.6 billion.
Global mobile-internet users: 4.7 billion (58% of world population).
US digital video ad revenue 2024: $62.1 billion, up 19.2% year-over-year, now 24.0% of total internet ad revenue.

Recent Developments

IAB’s April 2026 release reported full-year 2025 US digital ad revenue climbing to nearly $300 billion, with programmatic at $162.4 billion (up 20.5% year-over-year).
Dentsu’s December 2025 forecast projects global ad spend will pass $1 trillion in 2026, growing 5.1%, with digital reaching 68.7% of total investment.
Meta closed Q4 2024 with $46.78 billion in ad revenue on total Q4 revenue of $48.39 billion (a 21% year-over-year increase in total revenue), with Q4 average price per ad up 14%, signalling sustained mobile-first demand.
AppsFlyer’s April 2024 panel reported global app ATT opt-in rates at 50%, a 10% increase since the April 2021 rollout.
TikTok reported $10.75 billion in H1 2025 ad revenue, a 29.8% increase versus H1 2024, pacing toward a $33.1 billion full-year 2025 forecast.

Global Mobile Ad Spend Snapshot

The IAB/PwC Internet Advertising Revenue Report shows US internet advertising revenue at $258.6 billion for full year 2024, a 14.9% year-over-year increase, the highest annual growth since 2021.
Global mobile ad spending reached $362 billion in 2023, an 8% increase over the previous year, driven by short-form video and video-sharing apps.
Sensor Tower’s State of Mobile 2024 projects global mobile ad spend at $402 billion in 2024, an 11% year-over-year increase.
Dentsu closed 2024 with global ad spend at $772.4 billion, up 6.8% year-over-year, and forecast 5.9% growth into 2025.
The 2026 outlook from Dentsu puts global ad spend past $1 trillion for the first time, with 5.1% growth.
Digital channels now represent 68.7% of total ad investment, with digital growing 6.7% in 2026.
US digital ad revenue climbed to nearly $300 billion in 2025, with programmatic up 20.5% year-over-year to $162.4 billion per IAB’s 30th-anniversary report.

Metric	Value	Year	Source
US digital ad revenue	$258.6 billion	2024	IAB/PwC
Global mobile ad spend	$402 billion	2024	Sensor Tower
Global ad spend (all media)	$772.4 billion	2024	Dentsu
Global ad spend forecast	$1 trillion+	2026	Dentsu
US digital ad revenue	$300 billion	2025	IAB
Programmatic ad spend (US)	$162.4 billion	2025	IAB

Source: IAB/PwC Internet Advertising Revenue Report 2024, Sensor Tower State of Mobile 2024, Dentsu Global Ad Spend Forecasts 2025-2026

By the numbers: US digital ad revenue grew $33.6 billion year-over-year in 2024, the largest absolute increase IAB has recorded since the pandemic spike. Mobile is the delivery surface for nearly all of it.

The headline figures hide the more important shift. Mobile is no longer a category sitting alongside desktop in industry reports; it is the default delivery surface for every format the IAB tracks.

Format Mix Across the Mobile Container

Search advertising stayed the largest segment at $102.9 billion for 2024, growing 15.9% year-over-year and holding a 39.8% market share.
Social media ad revenue rebounded with a 36.7% year-over-year increase to $88.8 billion, an increase of $23.8 billion since 2023.
Display advertising reached $74.3 billion, a 12.4% year-over-year increase, compared to its 4.0% growth in 2023.
Digital video was the fastest-growing format, increasing 19.2% year-over-year to $62.1 billion, now accounting for 24.0% of total ad revenue.
Retail media network advertising rose 23.0% year-over-year to $53.7 billion, with a $10.1 billion absolute increase driven by first-party data shifts.
Podcast advertising showed strong year-over-year growth of 26.4%, a significant acceleration from 5.5% the prior year.
Creator advertising emerged as a core media channel with spend reaching $37 billion in 2025 per IAB’s 30th-anniversary report.

The doughnut tells the story behind the topline. Every format in the IAB report runs predominantly through mobile devices; the social media advertising line item is mostly Meta and TikTok served to phones, and retail media is largely Amazon, Walmart and Target apps. The composition shifts year over year, but the channel barely matters.

Regional Breakdown: APAC, Americas, EMEA

The Americas lead 2026 growth with a 5.2% expansion to $460.5 billion, with the United States up 5.0%, Brazil up 9.1%, and Canada up 5.4% per Dentsu.
Asia-Pacific is forecast to grow 5.4% in 2026, with China up 6.1% and India up 8.6%, the fastest large-market mobile-ad growth in the world.
EMEA growth is 4.2% in 2026, with the United Kingdom leading at 5.7%.
Sub-Saharan Africa absorbed 75% of the 40 million newly mobile-internet-covered people in 2024, expanding the addressable base for in-app advertisers.

Region	2026 Growth	Value or Note
Americas	5.2	$460.5 billion total
Asia-Pacific	5.4	China +6.1%, India +8.6%
EMEA	4.2	UK +5.7%

Source: Dentsu Global Ad Spend Forecasts 2026 (growth in percent year-over-year)

The Americas remain the revenue anchor, but Asia-Pacific has the steepest growth curve and the largest unconnected populations still to onboard. India’s 8.6% growth alone outpaces every Western European market.

The Big Three Platforms: Meta, Alphabet, TikTok

Meta reported full-year 2024 total revenue of $164,501 million (up 22% year-over-year) and advertising revenue of $160,633 million, the bulk served to mobile devices.
Meta’s ad impressions across the Family of Apps grew 11% year-over-year for full year 2024, with average price per ad up 10%.
Alphabet’s 2024 Google advertising revenue totalled $264.59 billion, with Search and other advertising up 12% to $198.1 billion, YouTube advertising at $36.1 billion, and Google Network at $30.4 billion.
TikTok’s worldwide ad revenue reached an estimated $23.6 billion in 2024, more than double its 2022 figure, with the United States generating over $10 billion.
The TikTok 2025 forecast calls for ad revenue to hit $33.1 billion, a 40.5% increase from 2024.

Three platforms account for nearly half a trillion dollars of advertising revenue in a single calendar year. Every dollar runs through a mobile-first ad server, even when the impression lands on a desktop. The platform pecking order has stayed roughly stable since 2022, but TikTok is closing the relative gap against Meta faster than any other challenger.

Mobile Advertising Performance Benchmarks

Google Ads click-through rates improved across all 14 industries WordStream tracked in 2025, with growth ranging from +2.07% to +16.30%.
Automotive led CTR growth at +16.30%, reaching 1.65% CTR, followed by Health and Wellness at +13.69% to 1.49%.
Conversion rates fell in 13 of 14 industries in WordStream’s 2025 dataset, a widespread erosion despite the CTR gains.
The biggest CVR declines were Travel Accessories at -36.31% to 2.63% and Business Supplies and Equipment at -18.48% to 2.70%.
The cross-industry Google Ads Search conversion rate average for 2026 sits between 4.40% and 7.04%, with Automotive Repair leading at 14.67%.
Mobile devices outperform desktop by 33% to 52% on traffic volume, but mobile conversion rate lags desktop by 1 to 2 percentage points across most industries.

The benchmark divergence is the story: ads now get more clicks but fewer conversions per click. Mobile carries the traffic while desktop closes the sale, and the gap explains why advertisers run shoppable mobile creative and reserve desktop budgets for the final purchase step.

App Tracking Transparency: Three Years On

AppsFlyer’s three-year ATT panel found 50% of app users now opt in to tracking globally, a 10% increase since ATT’s rollout.
Total iOS ad spend grew 28% between Q1 2023 and Q1 2024, while Android grew only 5% during the same period.
iOS non-organic installs surged 51% year-on-year from May 2023 to Q1 2024, with Android up 21% over the same window.
50% of apps ramped up iOS ad spend between Q1 2023 and Q1 2024 per the AppsFlyer panel.
Developer adoption split by category: 84% of gaming app developers and 68% of non-gaming app developers now show the ATT consent prompt.
Regional opt-in varies sharply: France and China both at 53%, Germany at 47%, the United Kingdom at 46%, the United States at 44%, and Sweden at 31%.

The 2022 consensus was that ATT had broken iOS as an advertising surface. Three years of data tells the opposite story. iOS ad spend grew nearly six times faster than Android in the comparable window, and the same panel found half of all apps deliberately raised their iOS budgets. The iOS vs Android split now favours iOS at the platform-economics level, not Android. SKAdNetwork and aggregated measurement filled enough of the targeting gap that advertisers came back.

Mobile Commerce as Ad-Spend Multiplier

Capital One Shopping research reports 59% of global e-commerce sales now come from mobile devices, with 67% projected by 2030.
Global mobile e-commerce sales totalled $2.07 trillion in 2024, 57% of total e-commerce, rising to an estimated $2.51 trillion in 2025.
The 2030 projection puts mobile e-commerce at $4.39 trillion, growing at a 20.6% annual compound rate observed from 2019 to 2024.
79% of smartphone owners use their device to shop, with mobile traffic representing nearly 80% of digital shopping volume.
29.9% of the world’s online shoppers make a purchase on their smartphones at least once per week.

Why it matters: Mobile commerce sales more than doubled the $2.07 trillion 2024 baseline by 2030 in Capital One’s projection. Every incremental mobile purchase pulls budget toward shoppable in-app inventory.

The e-commerce curve and the mobile ad spend curve compound on each other. As more purchases close on phones, the value of an in-app impression rises, which pulls more ad budget toward mobile commerce inventory. Retail media’s 23% growth in 2024 sits on top of this mechanism, not next to it.

Mobile-First Programmatic and Creator Spend

Programmatic represents more than four-fifths of digital advertising investment globally per Dentsu’s 2026 forecast.
Online video is forecast to grow 11.5% in 2026, with social at 11.4% and retail media leading at 14.1%.
IAB’s 2025 report broke out creator advertising as a core media channel reaching $37 billion in spend, with mobile-first short-form video driving most of the growth.
US programmatic ad spend grew 20.5% year-over-year to $162.4 billion in 2025.

Programmatic, creator and retail media are three different names for the same underlying shift: machine-bought, audience-targeted, mobile-served inventory. The three lines collectively grew faster than the digital-ad average in both 2024 and 2025 per IAB and Dentsu primary data.

How big is the global mobile advertising market?

Mobile advertising is the dominant channel inside a global ad market that is forecast to surpass $1 trillion in 2026 with 5.1% growth, with 68.7% of investment now flowing through digital channels. Sensor Tower’s State of Mobile data projects global mobile ad spend at $402 billion in 2024, an 11% year-over-year increase from 2023’s $362 billion. Inside the US specifically, internet ad revenue hit $258.6 billion in 2024 with 14.9% year-over-year growth; mobile is the delivery surface for the vast majority of search, social, video, display and retail media inside that figure.

Which platforms capture the most mobile ad spend?

Three platforms dominate global mobile ad spend by primary-source financials. Alphabet reported $264.59 billion in 2024 Google advertising revenue across Search, YouTube and Network segments. Meta’s 2024 advertising revenue totalled $160,633 million with 11% impression growth and 10% price-per-ad growth year-over-year. TikTok’s worldwide ad revenue reached an estimated $23.6 billion in 2024 with $10+ billion from the United States alone, more than double its 2022 figure. Combined, the three account for roughly half a trillion dollars annually, and every line item runs through a mobile-first ad server.

How effective is mobile advertising versus desktop?

WordStream’s 2025 benchmark panel found mobile devices outperform desktop by 33% to 52% on traffic volume across both platforms, but mobile conversion rate lags desktop by 1 to 2 percentage points. Click-through rates improved across all 14 industries WordStream tracked in 2025, with growth ranging from +2.07% to +16.30%, while conversion rate declined in 13 of 14 industries. The practical implication: mobile creative captures the click, desktop landing pages frequently close the sale, and high-performing campaigns design for the cross-device handoff rather than mobile-only conversion.

Conclusion

US digital ad revenue hit a record $258.6 billion in 2024 with 14.9% year-over-year growth, and global ad spend is on pace to clear $1 trillion in 2026 per Dentsu’s December 2025 forecast. Almost every dollar inside those figures touches a smartphone, whether through search, social, video, retail media or creator inventory. The IAB’s decision to stop breaking out mobile as a separate format codifies what the spend curves have already shown: mobile is the substrate underneath the entire digital advertising stack.

Three structural facts will define the next two years. GSMA’s 4.7 billion mobile-internet users represent 58% of the world’s population, which caps net-new audience growth and forces compounding through ARPU and format conversion. The big three platforms keep absorbing share while challengers struggle to reach the scale primary filings show. The ATT recovery proved the post-cookie environment workable: iOS budgets grew nearly six times faster than Android as advertisers learned to operate inside SKAdNetwork. Mobile advertising in 2026 is bigger, denser, and more concentrated than ever.