OTT vs CTV: Differences and Similarities, Explained
Melissa Yap | 6 Min Read
Quick Takeaways
What marketers need to know about OTT and CTV.
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Streaming leads TV viewing, drawing audiences and rising ad investment.
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OTT is internet-delivered video across TVs, computers, tablets, and smartphones.
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CTV is OTT streaming on connected television devices and platforms.
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CTV combines premium placements with precise targeting, engagement, and measurable performance.
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Knowing the difference helps optimize creative, measurement, targeting, and ROI.
Streaming has officially moved from “nice-to-have” to “how TV gets watched.” Pew Research Center found that 83% of U.S. adults watch programming on streaming services, while just 36% subscribe to cable or satellite TV, and advertisers have followed the audience. In 2026, U.S. digital video ad spend is projected to surpass $80 billion, with Connected TV (CTV), online video, and social video driving the next phase of TV’s performance era.
But as streaming takes over the living room, the terminology can get fuzzy fast. Two acronyms in particular, OTT and CTV, are often used interchangeably. They are closely related, but they describe different pieces of the streaming ecosystem. Understanding the difference matters for marketers because it shapes how campaigns are bought, measured, optimized, and ultimately connected to business outcomes.
Let’s dive in.
What is Connected TV?
Connected TV (CTV) refers to internet-enabled television devices, such as smart TVs, streaming sticks, and gaming consoles, that allow users to access digital content beyond traditional cable. These devices serve as gateways to streaming platforms like Hulu, YouTube, and Netflix, where viewers consume content on the big screen.
How CTV Advertising Works
For advertisers, CTV offers a premium, brand-safe environment like traditional TV advertising, but with the targeting precision of digital marketing. Instead of relying on broad age-and-gender demographics alone, marketers can reach more specific audiences based on factors such as interests, behaviors, location, and purchase intent.
That makes CTV especially powerful for performance marketing campaigns. Advertisers can serve ads on the biggest screen in the house, then measure what happens next, whether that’s site visits, conversions, revenue, or ROAS. In other words, CTV finally brings TV advertising into the same performance conversation as paid search and paid social.
What to Expect from CTV in 2026
Current forecasts show Connected TV attracting more investment and taking a larger role in upfront media plans.
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$37.95B 2026 U.S. CTV ad spend
Projected U.S. Connected TV advertising investment in 2026.
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$17.73B 2026 CTV upfront ad spend
CTV is forecast to surpass primetime linear TV upfront spending for the first time.
What is OTT?
Over-the-top (OTT) is the method of delivering video content over the internet, bypassing traditional cable or satellite providers. Streaming services like Disney+, Peacock, and HBO Max use OTT to distribute shows and movies across various devices, including mobile phones, tablets, and CTVs.
How OTT Advertising Works
In advertising, CTV vs. OTT matters because CTV ensures ads appear on television screens, while OTT refers to content delivery across multiple platforms. OTT ads can show up on a smart TV, but they can also appear on a laptop, tablet, or mobile phone (basically anywhere viewers stream internet-delivered video).
That makes OTT a broader category. It includes the streaming services and apps that deliver video content, while CTV refers specifically to the TV-screen experience.
Put simply: all CTV is OTT, but not all OTT is CTV. For marketers, that distinction affects everything from creative format to audience targeting to measurement.
OTT Viewership Trends in 2026
Current audience data shows the true scale and reach of internet-delivered television.
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240M+ U.S. subscription OTT viewers
More than 240 million people will watch subscription OTT video in 2026, and most are expected to see ads.
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46.6% Share of ad-supported TV viewing
Streaming captured a record-high portion of ad-supported television viewing during Q1 2026.
Benefits of CTV and OTT Advertising
CTV and OTT have redefined how audiences consume content and how advertisers reach those audiences. We’ve already hinted at a few of the advantages earlier, but let’s get into the weeds a bit more.
Higher Engagement and Recall
Audiences are no longer tied to network schedules, choosing what to watch on their own time. Ads land when attention is high, yielding completion rates often above 90% on CTV.
Precise Contextual Alignment
From live sports to niche streaming services, CTV and OTT offer something for everyone. For brands, this creates opportunities to increase conversions by aligning messaging with the right content.
Cross-Screen Reinforcement
Streaming content isn’t limited to the living room. Viewers seamlessly switch between smart TVs, tablets, mobile devices, and gaming consoles. This gives advertisers a way to reinforce messaging across multiple screens.
Access to Cord-Cutters and Incremental Reach
With CTV and OTT, viewers aren’t locked into cable contracts or channel bundles, making it easier than ever to cut the cord. Streaming advertising reaches this digitally native, high-value audience that skews younger and more affluent.
Granular Targeting and Attribution
Streaming platforms use viewer data to deliver personalized content recommendations, creating a more curated experience. First-party data, intent signals, and household-level insights enable hyper-accurate audience segmentation.
Difference Between OTT and CTV
Now it’s time for the all-important recap. OTT and CTV are similar, but there are subtle differences between the two, which we break down in the table below. But, in summary:
- OTT is a delivery method that streams content across devices, such as mobile and desktop.
- Connected TV is the device used (usually a smart TV) to view the OTT content.
Now, let’s break down how these differences manifest in the real world.
Summary of Differences |
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| Aspect | OTT (Over-the-Top) | CTV (Connected TV) |
Devices and Screen Size |
Any internet-connected device, including phones, tablets, desktops, and TVs. | Television screens only, including smart TVs and streaming devices. |
Targeting and Data |
Strong individual- and user-level targeting, especially across personal devices. | Household-level targeting and insights based on TV viewing behavior, interests, shopping signals, and more. |
Ad Formats, Skippability, and Engagement |
Pre-roll, mid-roll, and post-roll formats that may include skippable, clickable, or interactive options, depending on the device and platform. | Full-screen video ads that are typically non-skippable, with strong completion rates and co-viewing potential. |
Costs, Inventory, and ROI Potential |
Often lower CPMs, broader reach, and flexible inventory across devices. | Premium inventory generally comes at a higher cost, but can deliver stronger brand impact and measurable business results. |
Viewing Context and Audience Behavior |
Lean-forward, personal, and multitask-friendly. | Lean-back, immersive, and often communal. |
Measurement and Attribution |
Easier cross-device tracking in some environments, but broader inventory can introduce higher fraud and viewability risk. | Strong viewability and completion, but accurate attribution requires CTV-specific tools. |
Platforms |
Streaming services and apps that deliver content over the internet, such as Hulu, Disney+, Peacock, Max, Paramount+, YouTube, Tubi, Pluto TV, Sling TV, and Fubo. | Devices, operating systems, and TV environments used to watch streaming content on a television screen, such as Roku, Amazon Fire TV, Apple TV, Google TV, Samsung Smart TV, LG Smart TV, Xbox, and PlayStation. |
So that’s OTT vs CTV. It’s pretty simple if you think about it. But those aren’t the only acronyms in the space that you’ve probably heard of. There are a few subcategories of OTT streaming that are absolutely worth mentioning. We promise not to go into a ton of detail on any of those (in this article), but the high-level definitions are important for putting a bow on the CTV/OTT discussion.
Other Types of OTT Streaming
OTT is an umbrella term, but the category includes several distinct streaming models. Here are the formats marketers and viewers are most likely to come across.
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Subscription Subscription Video on Demand (SVOD)
Viewers pay a recurring subscription fee for access to a content library, typically without ads.
ExamplesNetflix, Disney+
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Ad-Supported Advertising Video on Demand (AVOD)
Free-to-watch streaming content funded primarily or entirely through advertising.
ExamplesTubi, Pluto TV
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Transactional Transactional Video on Demand (TVOD)
Consumers pay per title, usually by renting or purchasing individual movies or shows.
ExamplesApple TV rentals, Amazon Prime Video purchases
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Premium Rental Premium Video on Demand (PVOD)
Newly released films offered for at-home viewing at a premium price, often shortly after or instead of a theatrical run.
ExamplesApple TV premium rentals, Fandango at Home
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Free Streaming Free Ad-Supported Streaming TV (FAST)
Linear-style streaming channels that run over the internet at no cost to viewers and are supported by ads.
ExamplesThe Roku Channel, Samsung TV Plus
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Live TV Bundle Virtual Multichannel Video Programming Distributors (vMVPD)
Internet-delivered live TV bundles that replicate the feel of a “skinny bundle” cable package.
ExamplesYouTube TV, Hulu + Live TV
Why You Need Performance TV
OTT and CTV both offer streaming ad opportunities, but only CTV ensures premium, high-impact placements with measurable results. MNTN Performance TV is built to help advertisers make the most of CTV’s advantages with these key features:
- Premium CTV Inventory: Access top-tier, ad-supported streaming networks, ensuring ads appear in brand-safe, high-engagement environments.
- MNTN Matched: AI-powered audience targeting finds the right viewers based on intent, demographics, and past behaviors.
- Verified Visits™: Track conversions by connecting CTV ad views to website visits, even across multiple household devices.
- Reporting Suite: Get real-time insights on reach, engagement, and lower-funnel performance, all in one intuitive dashboard.
- Automated Optimization: AI-driven adjustments optimize bidding, targeting, and frequency to maximize campaign efficiency and ROI.
CTV isn’t just an awareness channel. It’s a performance driver. Unlock its full potential with MNTN’s self-serve software—sign up today.
Connected TV vs OTT: Final Thoughts
OTT and CTV are closely related, but the difference matters: OTT explains how streaming content is delivered, while CTV defines where it’s watched. For marketers, that distinction shapes everything from creative strategy to targeting, measurement, and performance expectations. Get it right, and streaming TV becomes a lot less confusing and a lot more actionable.
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