In the strict technical sense, IPTV is television delivered over a managed IP network that the operator controls end to end — like TV from your broadband company's set-top box — while OTT ("over the top") is video delivered over the open internet to any device. In everyday language the lines have blurred: most consumer "IPTV subscriptions" used in apps like IPTV Smarters are delivered over the open internet, so they're technically OTT delivery of live TV.
OTT vs IPTV at a glance
| IPTV (strict sense) | OTT | |
|---|---|---|
| Network | Managed by the operator | Public internet |
| Quality control | Operator reserves capacity | Best effort; adapts to your connection |
| Device | Operator's set-top box | Apps on any device |
| Typical provider | Broadband/telecom company | Streaming apps and subscription services |
| Content | Live channels and on-demand | Often on-demand; can include live channels |
What is IPTV in the technical sense?
Standards bodies describe IPTV as TV and video services delivered over IP networks that are managed to provide a set quality of service. Telecom operators run their own network, can reserve capacity for TV, and often use multicast, sending a single stream of each channel through the network to many homes at once. You watch on their box.
The full delivery chain is explained in how IPTV works.
What is OTT?
OTT services ride "over the top" of any internet connection. The provider sends each viewer their own unicast stream over the public internet, usually with formats such as HLS that adapt to changing speeds (see IPTV stream formats). On-demand apps, live-TV streaming services and most IPTV subscriptions all work this way.
If you're deciding between live TV and on-demand apps, see IPTV vs streaming apps.
So what do people mean by "IPTV subscription"?
In everyday use, an IPTV subscription means live TV channels with a programme guide, delivered over the internet to a player app, usually with an on-demand library too. It behaves like traditional TV — channels, a guide, catch-up — but travels over your normal broadband like any OTT service.
What the difference means for viewers
- Quality depends on your connection. Without a managed network, your home broadband and Wi-Fi decide how smooth the picture is. See the buffering checklist.
- You choose the device. Any compatible app works — no operator box required.
- The provider's servers matter. With OTT delivery, server capacity at busy times is what separates a reliable service from one that stalls.
How to choose an OTT or IPTV provider
The checks are the same either way: published prices and channel list, a free trial on your own TV, a refund policy, device support and a support channel you can test. Our guide to comparing IPTV providers walks through them, and our IPTV provider page explains what we supply.
