Comparison

CastStream vs Relayo

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

CastStream

Stream photos, videos, music, and mirror your screen to smart TVs, streaming devices, or even other phones and PCs. Supports IPTV playlists and media servers.

Highlights
  • Fast screen mirroring
  • Mirror to PC, tablet, or phone
  • Works without traditional WiFi
  • Cast to Smart TV, Chromecast, Roku
  • Web video casting
  • IPTV casting
  • Media server support
Read full description

CastStream Hub lets you mirror your iPhone or iPad screen and cast your photos, videos, music, and web videos to your Smart TV, Chromecast, and Roku, including popular brands like Samsung, LG, Sony, and more. You can also mirror your screen to a PC, tablet, or another phone directly in a browser without installing any app. Whether you want to watch a movie, cast videos from websites, share photos, play music, stream from media servers like Kodi or Plex, use your own IPTV playlists, or mirror your screen to another device, CastStream Hub gives you everything in one place. Key Features • Fast Screen Mirroring Mirror your iPhone or iPad to Smart TV, Chromecast, Roku, PC, tablet, or phone with smooth performance and low latency. • Mirror to PC, Tablet, or Phone Open a simple link or scan a QR code in your browser and start mirroring instantly without installing anything on the receiving device. • Works Without Traditional WiFi Mirror your screen to a PC, tablet, or another phone even while travelling or in places without a router by connecting devices through your iPhone’s hotspot. Perfect for sharing movies, videos, presentations, or games on the go. • Save Mobile Data While Sharing Download or stream content on one device and share your screen with another nearby device instead of using mobile data separately on every device. • Cast to Smart TV, Chromecast, and Roku Stream videos, photos, music, and web videos directly. • Web Video Casting Browse supported websites inside the app, detect playable video streams, and cast them easily. • IPTV Casting Import remote M3U or W3U playlists, browse channels, and play M3U8 streams. • Playlist Management Refresh playlists to update channels or remove them whenever you want. • Media Server Support Browse and play content from DLNA or UPnP media servers like Kodi or Plex. • Easy Device Detection Automatically finds Smart TVs, Chromecast, Roku, and media servers on the same WiFi network. • High Quality Streaming Enjoy stable playback with smooth performance. • No Extra Hardware Required No cables or additional devices needed. How to Cast Make sure your iPhone or iPad and your Smart TV, Chromecast, Roku, or receiving device such as a PC, tablet, or phone are connected to the same WiFi network. For browser mirroring to a PC, tablet, or phone, you can also connect devices using your iPhone’s hotspot when WiFi is not available. Open CastStream Hub, choose what you want to play such as local media, web videos, IPTV channels, or media server content, then select your device or start mirroring using the link or QR code. For IPTV, paste a remote M3U or W3U playlist URL to load channels. Open the playlist and play any available M3U8 stream. You can refresh or delete playlists at any time. Important Note Some apps like Netflix and Amazon Prime Video may show a black screen during mirroring or casting due to DRM protection. This is a limitation from those platforms. The app works with most other apps and websites. Make sure you only stream content you have the rights to use. Disclaimer This app is not affiliated with Google, YouTube, Roku, or any other trademarks mentioned. All content comes from third party sources. IPTV and web video features depend on user provided content, and you are responsible for what you access and stream. Terms of Use & Privacy Policy By using CastStream Hub, you agree to the following: Terms of Use: https://caststreamhub.com/terms-condition.html Privacy Policy: https://caststreamhub.com/privacy-policy.html

About

Relayo

Stream content from your iPhone to Chromecast and Google TV devices without needing to install anything on your TV. Play files directly with no quality loss or convert them on the fly. Mirror your entire screen, including audio, with adaptive quality and convenient playback controls.

Highlights
  • Mirror iPhone screen to TV
  • Cast video files directly
  • No TV-side installation required
  • Adaptive quality for smooth streaming
  • Full playback controls
  • Share from any app
  • Private by design
Features
Read full description

Relayo mirrors your iPhone to your TV — Chromecast, Google TV, and now Samsung, LG and other smart TVs. Nothing to install on the TV side. WORKS WITH Chromecast (all generations) · Google TV · Nvidia Shield · Google Nest Hub TVs with Chromecast built-in from Sony, TCL, Hisense, Vizio, Xiaomi, Philips, Panasonic, Sharp, Skyworth, Thomson and more. NEW: Samsung, LG and other smart TVs that support DLNA — including many Sony, Panasonic, Philips and Hisense models. Connect your iPhone and TV to the same Wi-Fi, open Relayo, and your TV shows up in the list. No extra box, no app on the TV. PLAY A FILE — BEST QUALITY Pick a video from your library or any file on your device and Relayo sends it straight to your TV untouched. No re-encoding, no quality loss. On Chromecast and Google TV, if the format isn't supported, Relayo converts it on the fly and starts playing within seconds. Full playback controls: play, pause, scrub, skip 10 seconds — from the app, from your Lock Screen, or from the Dynamic Island while you use other apps. MIRROR YOUR SCREEN Send your whole display to the TV — photos, presentations, browsing, anything. App audio comes along if you want it. Quality adapts to your network automatically. If Wi-Fi gets busy, Relayo lowers the bitrate instead of freezing. SHARE FROM ANY APP Send a video to your TV straight from the share sheet — Photos, Files, or anywhere else that offers sharing. BUILT TO STAY OUT OF THE WAY Two taps to start. Reconnects on its own if Wi-Fi drops or the TV restarts. A Live Activity keeps the session on your Lock Screen and Dynamic Island while you do something else. Available in 19 languages. No ads. No subscriptions. No account. PRIVATE BY DESIGN No servers. No analytics. Nothing is collected, stored or uploaded — there is nowhere for your data to go. Your screen and files travel directly from your iPhone to your TV over your local network. GOOD TO KNOW - Screen mirroring runs a few seconds behind — fine for photos and presentations, not for gaming or fast interaction. For films, cast the file instead: it plays in full quality with no delay - Mirroring stops when your iPhone locks; this is a system limitation - On Samsung, LG and other DLNA TVs, playback is controlled from inside the app, and which file formats play depends on the TV; MP4 videos and JPEG photos work on almost all of them - Protected content from streaming services can't be mirrored, due to system restrictions - MKV and AVI files aren't supported — convert to MP4 first - If your TV doesn't appear, it may use a casting system Relayo doesn't support yet Relayo is not affiliated with or endorsed by Google, Samsung, LG or any other TV manufacturer. Chromecast and Google TV are trademarks of Google LLC. All other brand names are trademarks of their respective owners.

Screenshots

CastStream4 screens
Relayo4 screens

Verdict

The call

The clearest difference is in-app purchases: Relayo at none against CastStream's 10. Relayo also leads on ads (none vs shown) and update cadence (every 4 days vs every 10 days). CastStream's advantage is ratings volume (8 vs 1). On price, rating, device support and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. CastStream sells 10 in-app purchases, starting at $0.99 per month. Relayo asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.9 for CastStream against 5.0 for Relayo. That said, the two scores are not equally well evidenced: CastStream has 8 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

CastStream ships an update every 10 days, Relayo every 4 days. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 5 level
CastStream versus Relayo: the parameters behind the verdict, then further details
ParameterCastStreamRelayo
PriceFreeFree
Rating4.9 (8 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings8 — better1
Update frequencyEvery 10 daysEvery 4 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, Mac
Requires iOS17.0 — better17.6
Further details — not scored
Size95 MB14 MB
Age rating17+4+
DeveloperHajra ArslanDermatological Beauty LLC

Customer experience

CastStream

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Relayo

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

10 purchases

CastStream

Subscriptions8
  • CastStream Hub Monthly1 Month trial$0.991 Month
  • CastStream Hub Monthly$1.991 Month
  • CastStream Hub Monthly$2.991 Month
Show 5 more
  • CastStream Hub Yearly$7.991 Year
  • CastStream Hub Yearly$9.991 Year
  • CastStream Hub Yearly$12.991 Year
  • CastStream Hub Yearly$14.991 Year
  • CastStream Hub Yearly$24.991 Year
One-time2
  • CastStream Lifetime$29.99
  • CastStream Lifetime$39.99
None

Relayo

No in-app purchases

Questions

Is CastStream free?
CastStream is free to download, with in-app purchases available.
Is Relayo free?
Relayo is free to download, with no in-app purchases.
Which has better reviews, CastStream or Relayo?
Relayo is rated higher. CastStream averages 4.9 out of 5 from 8 ratings, while Relayo averages 5.0 from 1 ratings.
Do CastStream or Relayo have ads?
CastStream shows ads; Relayo does not.
Which is updated more often, CastStream or Relayo?
CastStream ships an update every 10 days, and Relayo every 4 days. Most recently, CastStream was updated on November 2, 2026 and Relayo on October 31, 2026.

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