Table of contents
- Introduction
- ROI on iOS
- ROI & retention on Android
- All-round excellence: ad networks with the most rankings
- Key storylines in mobile adtech for 2024
- The big are getting bigger (23.4% bigger)
- 46% jump in CTV spend (Roku is the king)
- Meta is on a roll
- iOS spend growing at Android’s expense
- Moloco: not a 1-hit wonder
- TikTok continues to level up
- Regional ad networks disappearing
- Appier is exploding (in a good way)
- X slash Twitter: not dead yet
- Reddit rejoins the ROI Index
- ironSource, Unity, and Aura ironSource are a powerhouse
- AppLovin continues to deliver
- Insights from the market
- Quarterly Trends Report
- Methodology
Introduction
Data scientist Liat Baltzan
Author John Koetsier
This report is also available in: Portuguese, Spanish, Korean and Chinese.
What can trillions of ad impressions, billions of clicks, and billions of installs tell you about the mobile ad ecosystem?
For one, it can showcase which ad networks and platforms are capturing the most spend. For another, it can highlight those which are creating the most conversions, resulting in the highest ROAS, and fueling the fastest growth.
That’s what the Singular ROI Index is all about.
Sure, the big players are going to be prominent.
But there’s a disturbance in the force at this precise point right now in mobile marketing. Last-click deterministic tracking is dying. Unified Measurement is taking over. Unified Measurement takes inputs from SKAN and MMM and IDFA and first-party owned data and upper funnel delivery data and much more. It then unifies all those signals within a single data infrastructure, and simplifies it for multiple uses via varying reporting views.
The goal: to help marketers make smarter decisions in complex times.
In all this privacy-driven change, some networks are charging to the front and adapting to the new environment faster than others. And the big platforms are capitalizing on their walled gardens of users and data and ad tools to grow faster.
One data source marketers can use to navigate this evolving ecosystem can be to see what’s working for others, using tools like Singular Benchmarks (only available for clients). But another is the Singular ROI Index, which takes trillions of data points and distills it into simple insight: the premium ad partners on the planet to test for various regions, verticals, and needs.
Here is the 2024 edition!
Use this tool to quickly scan all the top categories. Then we’ll dive deeper into each as you keep scrolling down the page ...
Aarki
Ad4Game
Adikteev
Adjoe
Appier
Apple Search Ads

Applovin

Aura
Bigabid
Blind Ferret
BlueStacks
Digital Turbine
Fluent

Google Ads
Influence Mobile
InMobi

IronSource Ads
Jampp
LifeStreet
Liftoff

Mintegral
Mistplay
Moloco
Persona.ly
Prodege
Remerge
Snapchat
Tiktok
Unity Ads
X (Twitter)
ROI on iOS
SKAN performance: top ad networks
We’re seeing significant change in SKAN performance on iOS from ad networks. Meta in particular has rebounded from a tough first full year of SKAN to a major increase in market share, and there are 5 new entrants into the iOS rankings this year.
Global
Top 5 in alphabetical order



Top 6–15 in alphabetical order

Global Gaming
Top 5 in alphabetical order



Top 6–15 in alphabetical order

Global Non Gaming
Top 5 in alphabetical order


Top 6–15 in alphabetical order


There was a reasonable amount of change in networks with top SKAN performance for 2024. Networks breaking into the top 5 positions this year include:

In addition, there are 5 additional new entrants on the SKAN performance index that we did not see last year:
Apple Search Ads
As you’re probably aware, Apple Search Ads does not use SKAdNetwork for measurement, instead using the Apple Ads Attribution API. So it’s hard to compare apples to apples on the iOS side. That said, ASA is a massive force in user acquisition on iOS.
But it’s been an interesting year for Apple Search Ads. While the last few years have been a breakout growth story for Apple’s mobile user acquisition ad network, the past year was a little different.
First off, there’s plenty of positives.
Apple Search Ads is a top-3 mobile user acquisition ad network. Think about that: despite only being active on the iOS side, ASA captures enough ad spend to rank in the top 3 of all ad networks globally for mobile user acquisition. And Apple Search Ads actually increased its share of spend on Singular, growing market share 18% over last year.
Also positive: ASA had 19% growth in the number of Singular clients using Apple Search Ads throughout the year.
But it’s been generally tough lately in adtech.
The result is that there’s a clear downward trend to ASA spend over the full year except September. And while that was the case with the entire industry in the last quarter, ASA dropped more. What that could mean: downward price pressure on ASA clicks and conversions.
We’ll see how this develops over the rest of 2024.
Ad partner ranking: Customer score
Top 10 ad networks and platforms by number of Singular customers who use them on iOS, listed alphabetically:




Ad partner ranking: Scale score
Top 10 ad networks and platforms by number of SKAN installs they achieved, listed alphabetically:




Ad partner ranking: Spend score
Top 10 ad networks by Singular customer spend on iOS, listed alphabetically:



ROI & retention on Android
Global ROI: top ad networks
Global
Top 5 in alphabetical order


Top 6–25 in alphabetical order



Global Gaming
Top 5 in alphabetical order


Top 6–25 in alphabetical order



Global Non Gaming
Top 5 in alphabetical order

Top 6–13 in alphabetical order



Regional ROI: top ad networks
APAC ROI
Top 10 in alphabetical order





EMEA ROI
Top 10 in alphabetical order





North America ROI
Top 10 in alphabetical order




South America ROI
Top 10 in alphabetical order




Global retention: top ad networks
Global
Top 5 in alphabetical order


Top 6–15 in alphabetical order


Global Gaming
Top 5 in alphabetical order


Top 6–15 in alphabetical order


Global Non Gaming
Top 5 in alphabetical order

Top 6–12 in alphabetical order


Regional retention: top ad networks
APAC retention
Top 5 in alphabetical order



Top 6–14 in alphabetical order

EMEA retention
Top 5 in alphabetical order


Top 6–14 in alphabetical order



NA retention
Top 5 in alphabetical order


Top 6–15 in alphabetical order


SA retention
Top 5 in alphabetical order



Top 6–10 in alphabetical order

Ad partner ranking: customer score
Top 10 ad networks by number of Singular customers using them on Android, in alphabetical order:



Ad partner ranking: scale score
Top 10 ad networks by installs on Android, in alphabetical order:




Ad partner ranking: spend score
Top 10 ad networks by Singular customer spend on Android, in alphabetical order:



All-round excellence: ad networks with the most rankings
All ad networks that ranked
For the 2024 edition of the Singular ROI Index, 31 ad partners managed to rank in at least 1 category. That’s up 1, or 3% from the 2023 index.
In alphabetical order, they are:





Golden 6: the 6 networks that ranked in every single category
Only 6 ad networks or platforms ranked in every single Singular ROI Index category, an impressive achievement that speaks to global scale and universal vertical penetration.
In alphabetical order, they are:



Seeing Meta and Google here is not a surprise. ironSource and AppLovin are also regular heavy hitters that rank well. TikTok has significantly leveled up this year, and its scale suggests that more is yet to come.
But the big surprise here is that Moloco made an appearance in every single category. That’s impressive: more about Moloco below.
Top 15 ad networks by number of rankings
Here are the top 15 ad networks for mobile user acquisition, ranked by the number of categories they placed in:
Place
Network





# of rankings
17
17
17
17
17
17
15
15
14
12
12
10
7
6
6
6
Key storylines in mobile adtech for 2024
The big are getting bigger (23.4% bigger)
There’s no doubt that it’s tough times in adtech. Overall spend is down for many ad networks. But the biggest players are taking a larger share of overall spend.
In alphabetical order, the 4 biggest players in terms of total spend are:

Each of them is increasing their share of spend by Singular customers, and some of them quickly, with an average share of spend growth of 23.4%.
2024 and 2025’s challenge for smaller independent ad networks is to build their own sources of supply to leverage first-party data better, as well as sourcing the best-quality third-party supply they can find. Getting first-party data from owned sources is critical, and it’s where we’ve seen the largest ad networks focus a lot of effort and capital over the past few years.
46% jump in CTV spend (Roku is the king)
We’re seeing a massive jump in CTV ad spend.
Names like Roku, Vizio, TVSquared, Vibe, and Samsung were visible in the data for the 2023 ROI Index, but not prominent. For 2024, they’ve grown substantially, along with LG Ads and TVScientific.
As you can see from the rankings above they’re still not in the very top tier of ad networks and platforms for mobile user acquisition, but the growth rate is impressive.
The top CTV networks that we’re seeing for spend, listed alphabetically, are:
- LG Ads
- OneView (owned by Roku)
- Roku
- Samsung
- TVScientific
- TVSquared (owned by Innovid)
- Vibe
- Vizio
Of these, Roku is by far the largest. Roku offers OneView, its DSP acquired from Dataxu in 2020, along with Roku Brand Studio for branded content, a self-service Ads Manager, and it also does direct deals for Roku Channel. Between these channels, Roku captured almost as much spend as all the other CTV players listed above combined.
Meta is on a roll
Meta is doing very well, thank you very much.
While 2022 was tough for Meta, with flat revenue and a down quarter in Q4, 2023 was much better, with positive revenue growth in each quarter and a blow-out Q4 that beat the year-before quarter by almost $7 billion.
Meta has figured out SKAN and — probably more importantly — built or extended measurement methodologies that are under its own control such as Aggregated Event Management and Conversions API.
The result is significant growth in share of spend for Singular customers … and a massive jump in the company’s stock price.
iOS spend growing at Android’s expense
Last ROI Index, the iOS-Android spend story was about iOS recovery after an SKAdNetwork dip. Now we’re seeing steadily increasing growth on iOS, hitting almost 53%.
The big question: how will SKAN 4 and Privacy Sandbox on Android impact these spend trends?
One possible outcome is that SKAN 4 improves measurement on iOS at the same time that Privacy Sandbox degrades it on Android, resulting in a repeat of history but reversed: a decline in spend on Android this time rather than iOS. Mitigating against this possibility, however, is that the big spenders on mobile have improved their Unified Measurement capabilities and are no longer solely dependent on last-click on-platform measurement.
Moloco: not a 1-hit wonder
Moloco was a force in the 2023 Singular ROI Index. That’s not just continued in 2024; it has actually accelerated. Moloco is present in every single category, and it has improved its ranking, hitting the top 5 more frequently.
That includes top-5 performance on 2 global indexes on iOS and 4 on Android.
Impressive, and given last year’s shocking performance, not a shock anymore. Moloco’s scale is still not at quite the top level of the other big players who are not named Meta or Google, but it’s getting closer. And, it almost can’t be overstated: ranking in every single category at the scale Moloco currently has is simply amazing.
TikTok continues to level up
TikTok is no longer a surprise breakout.
TikTok is a major player that this year hits every single index in the 2024 Singular ROI Index and often ranks high. Scale is also significantly up, with both spend and customer count in the top tier of the big players whose names are not Google and Meta.
TikTok wins an unprecedented level of time and engagement among mobile apps, but its monetization tools are still relatively young compared to its other big-platform competitors. If it can find a way to overcome some of its challenges vis-a-vis Meta and Google and Apple Search Ads in terms of data insights on its users, it will grow even faster.
One result of that: TikTok has become a SAN: self-attributing network. That adds privacy protection, but does require a specific SAN integration in order to get privacy-safe performance data. New clients have this experience right away, while existing clients are being switched to the new integration.
Regional ad networks disappearing
Look at the regional ROI and retention indexes for Android. Essentially every name on the list is a global player rather than a regional force.
Sure, that starts with the biggest networks and platforms in Google and Meta and TikTok, but you also see the AppLovins and Liftoffs and Molocos of the mobile adtech world. Some of the regional names that we’ve seen in the ROI Index in years past are now missing.
Part of that is due to consolidation of ad networks thanks to acquisitions by the biggest players, and part of that is due to the fact that large global companies with apps that are dominant in many geos are using platforms that they’re used to across all platforms.
It does beg the question: could local players have unique traffic sources that might prove beneficial?
Appier is exploding (in a good way)
Appier, the AI-focused user acquisition and mobile engagement platform that was founded in Taiwan and is now listed on the Tokyo Stock Exchange, is growing fast. The company raised $80 million in 2019 and used it to fund both acquisitions and international expansion APAC, U.S., and Europe.
Search for Appier on the 2023 Singular ROI Index: it’s nowhere to be found.
But in the 2024 index: Appier has 5 rankings:
- iOS gaming
- Android global ROI
- Android global gaming ROI
- Android regional ROI for APAC
- Android regional retention for APAC
That’s impressive.
Only a handful of Singular customers are currently using Appier, but with results like this, it’s likely others will feel the need to give the company a try.
X slash Twitter: not dead yet
Obviously, there’s been a ton of press on Elon Musk’s social toy, the former Twitter. Much of that was on the drop in ad spend on the platform, particularly after the multi-billionaire engineer and founder told advertisers to f*ck off.
But X isn’t dead yet.
And advertisers are still spending there.
Not a lot, of course. Not even a similar amount to Snap, for instance. But more than Reddit, and more than some of the familiar names in the mobile adtech space.
Last year, Twitter ranked on 14 separate indexes in the Singular ROI Index. This year, that’s down to 12.
More telling, perhaps, is that where last year Twitter had quite a number of rankings in the top 5 of ad networks, such as global ROI on Android, global retention on Android, and regional retention in APAC and North America, this year X has zero rankings in the top 5 in any category.
Perhaps even worse: its share of ad spend among Singular customers has dropped 38%.
All of which — let’s be honest — might actually spell opportunity. With less competition, good ads could stand out more. It’s worth a shot, at least. The core challenge: standing out from the typical drop-shipping consumer gadget ad that X is full of now that big brands have largely pulled out.
Reddit rejoins the ROI Index
Reddit scored a place on the 2024 ROI Index after skipping a year in 2023. The content-focused community placed on the iOS SKAN index for non-gaming, and showed well in other categories but ultimately fell short of the top rankings.
Reddit is a platform worth paying attention to. While there’s been some controversy over decisions management is making to get profitable, they are necessary steps to making Reddit more advertiser-friendly. Plenty of work remains, but there is huge potential here with 70 million DAU and close to a billion MAU.
If you do try Reddit, however, be aware that it requires very specific ad types. Typical ads are easy to skip in Reddit, but content-based ads that lean into what Reddit is — and even maybe a specific subreddit — offer significant potential.
ironSource, Unity, and Aura ironSource are a powerhouse
ironSource and Aura ironSource were big last year in the Index with 14 placements in various categories, plus 12 for Unity Ads, and 2 more for Aura ironSource for a total of 28.
In 2024, that total jumps to 38:
- Aura ironSource: 6
- ironSource: 17
- Unity Ads: 15
Not only did the ironSource + Unity juggernaut grab 38 slots, it also upgraded many of its positions from top 20 or 25 last year to top 5 in the 2024 Index.
The result is that this conglomeration is dancing with the giants in adtech. The intriguing part is that there’s still significant untapped potential if Unity can put its recent re-pricing gaffe behind it and then work to find better ways of using its development/creation market share to build perhaps a first-party data collective or a clean-room privacy solution which would enable SAN-level targeting.
That could be a real juggernaut.
AppLovin continues to deliver
As much as we may disagree with AppLovin on the need for truly independent third-party measurement (AppLovin owns Adjust, a Singular competitor) there’s no denying they have done some impressive work.
AppLovin is truly global, ranks in every single index, no matter which platform or region or vertical focus, and ranks very, very high in most of them. That success hasn’t always been reflected in its public markets performance, but since the stock price is up about 4X since January 2023, AppLovin is finally getting rewarded for its efforts.
Insights from the market
Apple Search Ads

Julia Kan
SVP of Revenue
Apple Search Ads connect high-intent users with app marketers aiming to reach a relevant audience in the most profitable manner. Many of our clients leverage Apple Search Ads to protect their brand, increase their awareness, and boost their organic results (yes, ASO and Apple Search Ads go hand-in-hand) while showing impressive ROAS.
Despite the changing economic conditions, SearchAds.com’s internal data suggest that 2023 was a record-breaking year for Apple Search Ads. The overall ad spend was at an all-time high, and both average conversion rates (63.70%) and average tap-through rates (9.43%) have been consistently increasing since 2019.
With Apple Search Ads, you’re now able to customize your ads and tailor your message for different audiences and markets, as well as improve creative alignment across all your channels with ad variations using custom product pages (2023 conversion rate average for apps using custom product pages were close to 40%). You can also maximize your Apple Search Ads strategy with different placements such as the Today tab ads, search tab ads, and product pages ads to increase brand exposure and drive more installs.
If you’re looking to capture this high-intent demand but do not know where to start, as an official Apple Search Ads Partner for Apple, MobileAction can help you drive growth to your mobile app or game with its deep expertise, competitive insights, multi-layered custom automations, and AI driven bidding functionality. MobileAction can also combine your post-install metrics onApple Search Ads for a complete UA funnel using our platform and Singular.
CTV and measurement

Harry Browne
VP, Client Strategy & Analytics
As we move into 2024, CTV advertisers are continuing to trend away from distinct DR and Brand campaigns. Instead, advertisers are increasingly focused on the nexus of the two approaches – Full Funnel Integrated Marketing. Full funnel advertisers look to balance the audience reach & growth approach of traditional Brand campaigns with the measurement and flexibility of DR. In practice, this means increased attention to high-visibility CTV platforms coupled with investment in granular measurement, robust Econometric tools such as MMM, and agile buying practices with an emphasis on optimization. This approach is becoming easier for advertisers to leverage. Nielsen’s Gauge for December 2023 shows a growing streaming audience that is diversified across platforms, with YouTube, Netflix, Prime, Hulu, Disney, Tubi, Peacock, Max, and Roku all accounting for >1% of total TV viewer hours; with Prime as a major domino to fall, the heavy majority of the premium streaming landscape is now ad-supported, giving advertisers an opportunity to spread their dollars around high-value platforms, increasing quality reach while keeping CPMs in check.
For mobile marketers, sophisticated measurement is of particular importance. Cookie deprecation, expected to reach Chrome / Google in 2024, will make reaching an audience and measuring against it more challenging. Advertisers should actively explore first-party data solutions and target against their existing customer base, either through exclusions or dedicated retargeting. For measurement, tools that do not rely on user matching, such as MMM, are of critical importance. QR codes are also increasingly being adopted for measurement. While these codes will not give a complete view of performance on their own, they do have real benefits. They can provide performance indicators existing outside of walled garden environments (aiding cross-channel comparisons) and can be particularly powerful for mobile advertisers when using deep linking. By leveraging their user data, measuring performance using new and nimble tools, and operating at the intersection of cost efficiency and viewer reach, CTV advertisers will be well prepared to capitalize on the growing streaming landscape in 2024.
ASA: TTR, CVR, CPT, CPA

Lina Danilchik
Marketing & Communication Team Leader
Apple Search Ads has become an integral part of the user acquisition mix. It enables mobile developers to target users with high intent, which results in higher conversion rates and other performance metrics. Simply put, the platform allows for targeting bottom-of-the-funnel users, who know what they want and are actively seeking apps to meet their needs, and, thus, are likely to convert into loyal customers.
According to recent research by SplitMetrics, the average conversion rate (CR) on Apple Search Ads amounted to an impressive 65.37% in 2023. Over the past few years, we’ve been observing a continuous growth trend for this metric. In general, CR in Apple Search Ads is higher than in other paid acquisition channels.
Apps spanning Entertainment, Sports, Photo & Video, and Food & Drink categories have dominated the charts with the most impressive campaign performance results. The surge in interest for entertainment content can be attributed to the global macroeconomic climate, which makes people seek tranquility and an opportunity to take a break from stressful news by using entertainment apps. At the same time, the rise of AI-powered photo and video editing apps breaks the barriers for those aspiring to become content creators, leading to increased interest in tools supporting creativity.
Source: SplitMetrics Apple Search Ads Search Results Benchmarks Report 2024
As for the costs, during 2023, the average cost per tap (CPT) was $1.59, compared to $1.99 for the previous period under review. Following a sharp rise in 2021, the average CPT for Apple Search Ads search results campaigns experienced a drop in 2022 and eventually stabilized in 2023. The cost per acquisition (CPA) trend is very much in line with the CPT trend. In 2023, the average CPA decreased compared with the first half of the year ($3.21) and reached $2.58. While these metrics might be perceived as higher compared to other channels, leveraging an Apple Search Ads campaign automation solution can ensure attracting high-LTV users and maximizing ROAS (return on ad spend).
Source: SplitMetrics Apple Search Ads Search Results Benchmarks Report 2024

Quarterly Trends Report
Singular publishes the ROI Index annually, with occasional refreshes.
We also now publish the Singular Quarterly Trends Report, which focuses on data points such as CPI rates, hottest genres, top ad networks, share of spend data, web versus in-app ads, ATT opt-in rates, paid versus organic, and hundreds of regional data points.
Check it out online at any time right here:
Methodology
Singular data analysts summarized the data from trillions of ad impressions, billions of clicks, and billions of installs by thousands of ad networks and platforms to find top performing advertising partners.
On Android, we prioritize networks with scale in both spend and number of customers who work with them. We analyze retention, click-to-install counts, relative fraud levels, and weight them along with the most important metric, return on investment, to find the top ad networks.
On iOS, we use similar scale parameters but utilize SKAdNetwork as the primary source of data, with the exception of Apple Search Ads that uses a separate API. With SKAdNetwork, we analyze the raw postbacks we receive as well as the information we have about the meaning of the conversion values and ad network parameters. We then translate these postbacks and to find higher-ROI conversions.
In both cases, we control for outliers and spurious data.

