Comparison

RTMP Broadcaster vs OBS 4K

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

Head to head
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

About

OBS 4K

Transform your iPhone into a professional 4K webcam for your Mac. Stream in high resolution with ultra-low latency and advanced controls. Ideal for video conferencing, live streaming, and content creation.

Highlights
  • 4K, 1080p, 720p streaming
  • Ultra-low latency
  • H.265 hardware encoding
  • Multiple lens support
  • Full zoom and exposure control
  • Custom stream profiles
Features
Read full description

Turn your iPhone into a professional 4K camera for your Mac. OBS 4K streams your iPhone camera in stunning 4K resolution over USB or WiFi, with ultra-low latency H.265 hardware encoding. KEY FEATURES: • 4K, 1080p, and 720p streaming over USB or WiFi • H.265 hardware encoding for crystal-clear quality at minimal bandwidth • Ultra-low latency — see your camera feed in real time • Multiple lens support — switch between Ultra Wide, Wide, and Telephoto • Screen curtain mode to save battery while streaming PRO FEATURES: • 60 fps smooth capture for professional-quality video • Full zoom and exposure control with real-time adjustments • Focus and exposure lock for consistent shots • Custom stream profiles for quick setup • Advanced ISO, white balance, and torch controls PERFECT FOR: • Video conferencing (Zoom, Google Meet, Microsoft Teams) • Live streaming (OBS Studio, Streamlabs) • Content creation and YouTube recording • FaceTime calls in stunning quality • Professional video production OBS 4K creates a virtual camera on your Mac, so any app that uses a webcam can use your iPhone’s powerful camera system. Connect via USB for the best quality, or go wireless with WiFi. Download now and transform your iPhone into the ultimate webcam. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://ioscorner.com/privacy.html

Screenshots

RTMP Broadcaster4 screens
OBS 4K4 screens

Verdict

The call

RTMP Broadcaster and OBS 4K both sit at 4.7 stars, but that hides the real split: 57% of RTMP Broadcaster's written reviews are positive against 29% of OBS 4K's. On price, rating, ratings volume and update cadence 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. RTMP Broadcaster sells 3 in-app purchases, starting at $12.99 per 7 days and OBS 4K sells 3 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.7 for RTMP Broadcaster against 4.8 for OBS 4K. Both are backed by a comparable volume of ratings — 30 and 23 respectively. Written reviews are what separate them: 57% of RTMP Broadcaster's written reviews are positive against 29% of OBS 4K's.

UpkeepUpdate frequency

RTMP Broadcaster ships an update every 3 weeks, OBS 4K monthly. Both last shipped on October 14, 2026.

Scorecard1 real difference · 9 level
RTMP Broadcaster versus OBS 4K: the parameters behind the verdict, then further details
ParameterRTMP BroadcasterOBS 4K
PriceFreeFree
Rating4.7 (30 ratings)4.8 (23 ratings) — better
Positive reviews57.1% of reviews — better28.6% of reviews
Number of ratings30 — better23
Update frequencyEvery 3 weeks — betterMonthly
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPadiPhone, Mac
Requires iOS17.217.0 — better
Further details — not scored
Size27 MB4 MB
Age rating4+4+
DeveloperWarthogLabHuseyin Bagana

Customer experience

RTMP Broadcaster

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

OBS 4K

All ratings23 ratings
Positive95.7%
Neutral0.0%
Negative4.3%
Written reviews7 reviews
Positive28.6%
Neutral0.0%
Negative71.4%

In-app purchases

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
3 purchases

OBS 4K

Subscriptions2
  • OBS 4K Pro Monthly$5.991 Month
  • OBS 4K Pro Yearly7 Days trial$79.991 Year
One-time1
  • OBS 4K Pro Lifetime$103.99

Questions

Is RTMP Broadcaster free?
RTMP Broadcaster is free to download, with in-app purchases available.
Is OBS 4K free?
OBS 4K is free to download, with in-app purchases available.
Which has better reviews, RTMP Broadcaster or OBS 4K?
OBS 4K is rated higher. RTMP Broadcaster averages 4.7 out of 5 from 30 ratings, while OBS 4K averages 4.8 from 23 ratings.
Do RTMP Broadcaster or OBS 4K have ads?
Neither RTMP Broadcaster nor OBS 4K shows ads.
Which is updated more often, RTMP Broadcaster or OBS 4K?
RTMP Broadcaster ships an update every 3 weeks, and OBS 4K monthly. Most recently, RTMP Broadcaster was updated on October 14, 2026 and OBS 4K on October 14, 2026.

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