Wurl and Amagi are not ad servers, and this page is not going to pretend they are. They are the platforms many FAST channels run on, and each has added a monetisation layer that makes it convenient to let the platform also run your ads. The question for a FAST operator is whether convenience is worth handing the ad decision to the company that also controls distribution.
The word "monetisation" covers three different jobs on a FAST channel: bringing demand, deciding which ad plays in which slot of which pod, and stitching that pod into the stream. Vendors bundle them in different combinations, so it is worth being precise.
| Product | Owned by | Brings demand | Holds the ad decision | Stitches the stream |
|---|---|---|---|---|
| Wurl AdPool | AppLovin, a mobile advertising and app technology company, since 2022 | Yes. Programmatic demand including AppLovin's own network, positioned as exclusive to Wurl | No. Integrates through VAST tags or a SpringServe connection, so it sits behind an ad server | No |
| Amagi Ads Plus | Amagi, a privately held cloud playout and FAST platform company | Yes. A managed CTV marketplace: PMPs, open marketplace and direct buyers | No. Described as a marketplace, not a decisioning system | No; that is Thunderstorm |
| Amagi Thunderstorm | Amagi | No | No. Amagi's own documentation describes it working downstream of a separate campaign management system | Yes. Server-side insertion with contextual and dynamic break-length features |
| GoGo CTV | Independent | Through the SSPs and marketplaces you connect, which can include Wurl AdPool and Amagi Ads Plus | Yes. Unified auction and pod construction across every source | Yes. Manifest-level server-side insertion |
Product descriptions verified September 2026 from the vendors' own pages: Wurl AdPool, Amagi Ads Plus and Amagi Thunderstorm. Wurl's ownership from AppLovin's 2022 completion announcement. Both companies change their product line-ups often; confirm the current shape with them directly.
If Wurl or Amagi already delivers your channel to Samsung TV Plus, Pluto, LG Channels and the rest, letting the same platform monetise it removes a vendor, an integration and a reconciliation. For a channel with no sales team and no second demand source, that is a real saving and it is the right call more often than an ad server vendor would like to admit.
Each also brings something specific. Wurl's AppLovin demand is a pool of mobile performance budget that most CTV SSPs do not carry. Amagi's insertion is built around its own playout, so contextual break placement and variable break length are easier than they would be with a stitching layer that only sees the manifest.
"When my direct campaign, your marketplace demand and a third-party SSP all want the same slot, which system decides, on what rule, and where do I see the log?" The answer tells you whether you are buying demand or handing over decisioning.
The clean arrangement for a growing FAST operator is to keep the distribution platform doing what it is good at and put an independent ad server in front of the demand. Wurl AdPool integrates through VAST tags, which any ad server can call. Amagi Ads Plus is a marketplace and can be connected as a demand source alongside your SSPs. Amagi Thunderstorm can remain the insertion layer if you prefer it, taking the pod the ad server decided, or GoGo CTV's manifest-level insertion can stitch it.
Whether AppLovin demand remains available to a channel that has moved decisioning off Wurl is a commercial question for Wurl. It is worth asking before you plan around it.
The arrangement above describes how the layers fit by function. Which specific connections are live and certified for your inventory is something to confirm with each vendor, including us, before you plan a rollout.
Three kinds of tool touch FAST yield: the ad server that builds each pod and decides which demand wins, the insertion layer that stitches the pod into the stream, and demand or marketplace products that bring buyers. Wurl AdPool and Amagi Ads Plus are mainly the third kind, with Amagi also offering insertion. An independent CTV ad server such as GoGo CTV is the first kind and can take demand from either of them. Hold the decisioning layer yourself if you sell through more than one demand source or run direct deals.
Not in the sense of holding the final ad decision. Wurl describes AdPool as a CTV ad monetisation suite that supplies programmatic demand, including exclusive AppLovin network demand, plus contextual targeting and in-stream formats, integrated through VAST tags or a SpringServe connection. It sits alongside an ad server as a demand source rather than replacing one. Wurl has been owned by AppLovin since 2022.
Amagi sells cloud playout and FAST distribution, a server-side ad insertion product called Thunderstorm, and a demand marketplace called Ads Plus. Its own product documentation describes Thunderstorm as handling insertion downstream of a separate campaign management system, so ad decisioning is expected to come from elsewhere. Amagi is strongest as the operating platform for a channel; the decision about which ad plays can sit with an independent ad server.
We will shadow-test a slice of your live FAST inventory with your current demand sources connected, and show you pod fill, latency and yield against what runs today. Nothing changes for viewers.