If you can only launch your streaming app on one CTV platform first, which one should it be - Fire TV or Roku? The honest answer depends on three factors: your audience demographics, your monetization model, and your engineering capacity. Here is the comparison that matters.
Audience reach in the US
Roku leads US CTV market share at roughly 37%, with Fire TV at 32% as of early 2026. Both reach >70M monthly active households, so for a US-only launch either platform delivers scale. Internationally Fire TV wins (Amazon ships into far more countries), and in the UK Fire TV is the larger of the two.
Roku skews slightly older and more cord-cutter; Fire TV skews younger and more Prime-affiliated. If your content targets a Prime-affinity audience, Fire TV has a stronger discovery surface for you.
Revenue per user
Fire TV ad CPMs tend to run 10–15% higher than Roku for comparable inventory, mostly because Amazon ad demand is exceptionally strong. For AVOD-first publishers, that is real money.
On the SVOD side it is closer. Roku Pay takes 20% of subscription revenue; Amazon takes 30% of in-app purchases (15% under Small Business Program). If your sign-up flow is web-based and you qualify as a reader app, Amazon's 0% can apply on Fire TV - Roku has no equivalent loophole.
Engineering cost to ship
Roku channels are written in BrightScript with SceneGraph UI. The language is purpose-built for the platform but obscure outside it. Hiring is hard and the dev tooling lags modern web frameworks.
Fire TV apps are Android apps. You can build with native Kotlin, React Native, or a hybrid framework. Hiring is far easier and you can share code with your Android mobile app if you have one.
If you have an existing Android team, Fire TV first is the lower-cost path. If you are starting from zero, a managed builder like OTT Engine collapses the difference.
Time to certification
Roku's certification takes 24–48 hours and is rigorous. Fire TV's review takes 5–10 business days and is more lenient on rough edges. So Roku is faster but stricter; Fire TV is slower but easier to pass.
Discovery and search
Both platforms have strong universal search. Fire TV's Alexa voice integration is a step ahead - if you implement VSK (see our Alexa deep linking post), you appear in voice queries that Roku cannot match. Roku's homescreen and Roku Channel cross-promotion are stronger in the other direction.
Our recommendation
- AVOD-first publisher → Fire TV first. Higher CPMs, broader international reach.
- SVOD-first publisher with a web sign-up flow → Fire TV first. Reader-app exception can eliminate IAP fees.
- Premium SVOD without a web flow → Roku first. Faster cert, larger US-only audience, simpler payment integration.
- FAST channel publisher → both, simultaneously, via FAST aggregators. Roku Channel and Amazon Freevee reach distinct audiences.
The bottom line
There is no universally 'better' platform - only the right first launch for your model. OTT Engine ships native Roku and Fire TV apps from the same content source, so you do not have to choose forever. Book a demo and we will model your launch order against your goals.
Frequently Asked Questions
Which has more US users, Roku or Fire TV?
Roku leads US CTV share at ~37%, with Fire TV at ~32%. Both reach more than 70 million monthly active households.
Which platform pays publishers more?
Per ad impression, Fire TV CPMs run 10–15% higher than Roku. Per subscriber, Fire TV's IAP fee (30%) is higher than Roku Pay's revenue share (20%), but the reader-app exception can flip that comparison on tvOS-like terms.
How long does it take to build a Roku vs Fire TV app?
From scratch, expect 3–6 months for either. With a managed builder like OTT Engine, both can launch in 2–4 weeks.
Can I share code between Roku and Fire TV apps?
No. Roku uses BrightScript; Fire TV uses Android. A managed platform abstracts both behind a single config - that is the only practical code-share path.
Is Apple TV a third option I should consider?
Yes - but its audience is a fraction of Roku or Fire TV. Apple TV is typically launch #3 for premium services targeting affluent US households.