Comparison

Castream vs RTMP Broadcaster

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

Head to head
About

Castream

This app transforms your phone into a professional live broadcasting studio. Stream to multiple platforms simultaneously with real-time overlays, AI-powered tools, and unified chat. It's designed for easy, high-quality multistreaming.

Highlights
  • Multistreaming to multiple platforms
  • Real-time overlays and Picture-in-Picture
  • Unified live chat with AI insights
  • Scheduled broadcasts and stream recording
  • AI title & description generator
  • Camera filters and voice effects
Read full description

Castream makes going live incredibly easy — turning your phone into a complete live broadcasting studio. Whether you're a creator, musician, pastor, journalist, gamer, or anyone with something to share, you can stream to YouTube, Facebook, Twitch, and any RTMP-compatible platform — including TikTok Live and Instagram Live — simultaneously, straight from your phone. Now with screen capture, real-time overlays, AI-powered tools, and scheduled broadcasts. Perfect for anyone who wants professional multistreaming without the complexity. What’s inside: • Multistreaming — Go live to YouTube, Facebook, Twitch, TikTok Live (RTMP), Instagram Live (RTMP), and custom destinations simultaneously • Screen Capture — Broadcast your phone’s screen for gaming, tutorials, presentations, and more • Picture-in-Picture (PIP) — Use front and back camera together and position it on screen • Live Broadcasting Studio — Add overlays, lower thirds, and customize your stream in real time • Live Location Overlay — Show where you’re streaming from or set a custom location • Camera Filters & Voice Effects — Add visual styles and experimental voice filters • Unified Live Chat — View messages from YouTube, Facebook, and Twitch in one feed • Chat Insights (AI) — Get post-stream summaries and insights across platforms • Chat Operator Mode — Separate streaming and chat moderation across devices • AI Title & Description Generator — Instantly improve your stream metadata • Scheduled Video Broadcasts — Upload a video, set a time, and go live automatically • Stream Recording — Every stream is recorded and saved for 30 days • 1080p or 720p — Choose your preferred resolution • Portrait & Landscape Support — Stream in any orientation • Ultra-Low Latency — Smooth, reliable video • Synced Audio & Video — No drift • Auto Bitrate — Adapts to your network automatically • No Watermarks — Clean, professional output • Mobile-First Design — Built for performance on your phone • Public Profile — Share your streams at castream.io/@handler and view insights Free to use. Upgrade only if you need more. Go live everywhere with one tap. By using this app, you agree to Apple’s standard [Terms of Use (EULA)](https://www.apple.com/legal/internet-services/itunes/dev/stdeula/).

About

RTMP Broadcaster

Broadcast live video from your iPhone to various platforms and media servers using multiple protocols. Offers HD streaming, camera control, custom watermarks, and low latency.

Highlights
  • HD video and AAC audio encoding
  • Support for RTMP, RTMPS, RTSP, RTSPS, and SRT protocols
  • Low latency streaming
  • Front and back camera support with live switching
  • Customizable logo watermark
  • White-label streaming option
  • Bluetooth microphone support
Features
Read full description

Stream live from your iPhone to any RTMP, RTMPS, SRT media server! Broadcast to platforms like Facebook Live, YouTube Live, Twitch, Wowza, Nimble Streamer, Red5, Flussonic, and many others — in just a few taps. # Main Features • Supports SD, HD, and Full HD streaming • Select between Ultra Wide, Wide, and Telephoto cameras • Real-time H.264 video and AAC audio encoding • RTMP, RTMPS, RTSP, RTSPS, and SRT protocol support • Extremely low latency streaming • Use front or back camera with live switching • Auto-focus lock — long press anywhere to lock, tap to unlock • Add your own logo watermark or custom video frames • Three video stability modes (Off, Standard, Cinematic) • Bluetooth microphone support • Turn preview playback on or off • White-label — no watermark or branding on your stream • Compatible with Facebook Live, YouTube, Twitch, and any custom RTMP server # Subscription For the Pro subscription, subscriptions will be billed monthly or annually for renewal within 24 hours before the end of the current period. Subscriptions will automatically renew unless canceled at least 24 hours before the end of the current period. Subscriptions can be managed by the user and automatic renewal can be turned off by accessing the user’s account settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Payment will be charged to iTunes Account at confirmation of purchase. Terms of Use: https://warthoglab.com/terms-of-use Privacy: https://warthoglab.com/privacy-policy

Screenshots

Castream4 screens
RTMP Broadcaster4 screens

Verdict

The call

The clearest difference is review sentiment: Castream at 100% against RTMP Broadcaster's 57%. Castream also leads on update cadence (every 4 days vs every 3 weeks) and rating (5.0 vs 4.7). RTMP Broadcaster's advantage is ratings volume (30 vs 1). On price, ads, in-app purchases and monetization model 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. Castream sells 4 in-app purchases, starting at $12.99 per month and RTMP Broadcaster sells 3 in-app purchases, starting at $12.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Castream holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: RTMP Broadcaster has 30 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Castream's written reviews are positive against 57% of RTMP Broadcaster's.

UpkeepUpdate frequency

Castream ships an update every 4 days, RTMP Broadcaster every 3 weeks. Both last shipped on October 14, 2026.

Scorecard5 real differences · 5 level
Castream versus RTMP Broadcaster: the parameters behind the verdict, then further details
ParameterCastreamRTMP Broadcaster
PriceFreeFree
Rating5.0 (1 ratings) — better4.7 (30 ratings)
Positive reviews100.0% of reviews — better57.1% of reviews
Number of ratings130 — better
Update frequencyEvery 4 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.6 — better17.2
Further details — not scored
Size101 MB27 MB
Age rating17+4+
DeveloperPik Technologies LLCWarthogLab

Customer experience

Castream

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

RTMP Broadcaster

All ratings30 ratings
Positive90.0%
Neutral6.7%
Negative3.3%
Written reviews7 reviews
Positive57.1%
Neutral0.0%
Negative42.9%

In-app purchases

4 purchases

Castream

Subscriptions4
  • Creator Plan Monthly$12.991 Month
  • Pro Plan Monthly$19.991 Month
  • Creator Plan Yearly$129.991 Year
Show 1 more
  • Pro Plan Yearly$199.991 Year
3 purchases

RTMP Broadcaster

Subscriptions2
  • Weekly Pro Subscription$12.997 Days
  • Yearly Pro Subscription3 Days trial$59.991 Year
One-time1
  • Pro Subscription Lifetime$79.99

Questions

Is Castream free?
Castream is free to download, with in-app purchases available.
Is RTMP Broadcaster free?
RTMP Broadcaster is free to download, with in-app purchases available.
Which has better reviews, Castream or RTMP Broadcaster?
Castream is rated higher. Castream averages 5.0 out of 5 from 1 ratings, while RTMP Broadcaster averages 4.7 from 30 ratings.
Do Castream or RTMP Broadcaster have ads?
Neither Castream nor RTMP Broadcaster shows ads.
Which is updated more often, Castream or RTMP Broadcaster?
Castream ships an update every 4 days, and RTMP Broadcaster every 3 weeks. Most recently, Castream was updated on October 14, 2026 and RTMP Broadcaster on October 14, 2026.

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