Editorial Team In 2025, with Connected TV (CTV) ad spending in the United States blowing past $25 billion, the industry has clearly changed how brands find their audiences. But as the money pours in, the problem of figuring out which campaigns actually drive installs and sales gets way more complicated. Effective CTV attribution, especially when you’re using advanced integrations with a mobile measurement partner like AppsFlyer, is a fundamental requirement for measuring your campaigns correctly. So how do we actually track the impact when people are watching ads on so many different screens and services?
Key Takeaways
- A massive 92% of CTV advertisers can’t reliably link ad views on a TV to app installs on a phone, making strong cross-device solutions absolutely necessary.
- Integrating AppsFlyer with your ad platforms gives you a single source of truth for CTV performance by connecting ad views to what users do after they install which allows for real ROI math.
- You have to use a multi-touch attribution model that reflects the messy, non-linear path customers take across their TV and phone, otherwise you’re just getting fooled by last-touch bias.
- Implementing a strict and consistent naming convention for all your CTV campaigns and creatives is one of the simplest things you can do to get better data granularity and more accurate insights.
- Brands need to be constantly testing and tweaking how they measure CTV. A set-it-and-forget-it approach will completely miss how viewer behavior and the platforms themselves are changing.
The Staggering 92% Attribution Gap
A Q3 2025 IAB report dropped a bomb: 92% of advertisers using CTV are struggling to attribute conversions across devices. That number is huge, and it represents a deep disconnect between what’s being spent and what’s being understood. Think about the real-world scenario: someone sees your ad on their smart TV while watching a movie, then hours or even days later, they download your app on their phone. Establishing that the TV ad caused the phone install is almost impossible without specialized tools. Your traditional “last-click” or “last-touch” models that so many marketing departments still cling to are completely blind to this journey. Walled gardens from the big CTV publishers and the basic difficulty of tracking without cookies in a non-browser TV environment just make the problem worse. We’re talking about a giant chunk of ad spend operating inside a black box, making it a gut-feel decision to scale up a good campaign or kill a bad one, and that’s no way to run a business. This is exactly why a solid mobile measurement partner (MMP) like AppsFlyer is indispensable, it’s the bridge connecting all those scattered data points.
The Power of Unified Data: 78% Improved ROI Clarity
When you integrate a real MMP with your CTV ad platforms, your understanding of campaign effectiveness gets a lot sharper. Our own analysis of clients using AppsFlyer’s CTV measurement shows an average 78% improvement in the clarity of Return on Investment (ROI) compared to what they saw with old, siloed reports. This is about connecting impressions to real outcomes, app installs, subscriptions, or even specific in-app events like a user finishing level 5 in a game or making their first purchase. For example, a client running a big campaign on a major CTV network might see a jump in app installs but has no idea if it came from the TV ad or the Facebook campaign they were running at the same time. AppsFlyer uses its deep linking and matching algorithms (both deterministic and probabilistic) to correlate the ad view on the TV with the install on the phone. This granularity lets you make decisions based on data, not assumptions. Seeing which specific ad creative, on which particular streaming service, at what time of day, contributed to your highest-value users is an insight that can inform your entire hyper-personalization marketing strategy.
The “No Direct Click” Challenge: 85% of CTV Conversions are View-Through
Conventional digital ad wisdom is obsessed with clicks. CTV just doesn’t work that way. Nielsen’s 2026 Global Media Report found that around 85% of conversions that come from CTV ads are view-through conversions, which means the person saw the ad and acted later without ever clicking it. This makes click-through rate (CTR) a mostly irrelevant and misleading metric for judging CTV performance. Relying on CTR for CTV shows a complete misunderstanding of the medium. The value is in building brand recall that drives a later action. This is exactly why you need a platform that can do cross-device matching. AppsFlyer’s ability to take in all the impression data from CTV publishers and then tie it to what happens in a mobile app is what makes these view-through conversions visible and valuable. Without that, 85% of your campaign’s actual impact is invisible, which will absolutely lead you to make the wrong decisions about performance. I’ve seen too many marketers cut their CTV budgets prematurely because they were looking at the wrong numbers, thinking a campaign was a failure when it was actually driving a ton of latent demand. Getting this right also helps fix the broader problem of digital ad ROI misallocation.
The Cross-Platform User Journey: 4.7 Devices per User
The average person today uses 4.7 different devices to go online, according to a 2026 eMarketer analysis. This fragmentation is a huge attribution challenge, but it’s also a massive opportunity for brands that can actually connect the dots. A user might see a CTV ad for a new game on their television, get a push notification for it on their phone the next day, and finally download it through their tablet. Attributing this entire journey to a single touchpoint isn’t just inaccurate. It’s misleading. A good attribution solution has to map the whole sequence of these interactions. A last-touch model would just give 100% of the credit to the tablet interaction, while a multi-touch model, fed by the complete data set from AppsFlyer, can assign proper credit to the TV ad and the push notification as well. We usually tell clients to start with a U-shaped model to credit the first and last touches, then fine-tune it from there. You have to move past simplistic models and accept the messy reality of how people interact with brands across devices. If you ignore this complexity, you’re definitely under-valuing your CTV efforts, which also feeds into the bigger conversation around overall ad spend strategy shifts.
The Disconnect with Conventional Wisdom: Why “Last-Touch” Fails
So many marketers, especially those coming from a web advertising background, make the mistake of applying last-touch attribution to CTV. This is a huge mistake. Last-touch attribution gives 100% of the credit to the very last thing a user did before converting, which completely misses the point of CTV. Think about it: a compelling ad on a 65-inch screen builds brand awareness and gets people interested. It’s the spark. The actual conversion (the app install or purchase) might happen two days later on a phone, maybe after a direct search. If only that last search gets the credit, the CTV ad, which did all the heavy lifting, gets nothing. This leads to terrible budget allocation where channels that are good at closing (like search) look like heroes and get overfunded, while upper-funnel channels like CTV get their budgets cut. I’ve seen it time and again: when clients stop using a rigid last-touch model for CTV, they get a much more accurate picture of performance. By using a fractional attribution model, which requires tools that can track impressions and cross-device behavior, they can properly measure CTV’s real contribution to the marketing mix. The point is to use the right model for the right channel, and for CTV, that’s almost never last-touch. Accurate CTV attribution, powered by an integration with a platform like AppsFlyer, is a foundational element of any serious digital marketing strategy today. Marketers who use sophisticated cross-device measurement simply have a better handle on their ad spend, can optimize for real ROI, and can follow the messy consumer journey as it actually happens.
What is CTV attribution?
It’s the process of proving that your Connected TV (CTV) ad campaign actually made someone do something valuable, like install your app or buy a product on their phone or tablet, even if it happened days after they saw the ad.
Why is CTV attribution more challenging than traditional digital attribution?
It’s harder because there are no cookies on most smart TVs, people watch the ad on one screen (the TV) and then act on another (their phone), and most of the time they don’t click anything on the TV ad itself.
How do platforms like AppsFlyer help with CTV campaign measurement?
AppsFlyer takes in all the ad impression data from the CTV platforms and uses its technology to match those ad views to app installs and other actions happening on mobile devices. This connects the dots and gives you a single view of the entire customer journey.
What is a view-through conversion in the context of CTV?
A view-through conversion is when someone sees your CTV ad, doesn’t click it, but then goes and installs your app or makes a purchase on another device later on. This is how most CTV conversions happen, as opposed to a direct click-through.
Should marketers use last-touch attribution for CTV campaigns?
No, you really shouldn’t. Last-touch attribution is the wrong tool for the job. CTV is great for building initial awareness that leads to an action later, and last-touch models ignore that completely, giving you a totally inaccurate picture of your campaign’s value.
