Compare Updated September 26, 2026
ArcLight vs OBS, Streamlabs, XSplit, Camtasia and Ecamm
ArcLight is a Mac app that turns slides into live video. It is the best fit if you present, teach or host a show on a Mac and would rather build it like a Keynote deck than wire up a broadcast console. It is not the best fit — yet — if you need to bring in remote guests, run on Windows, or pay nothing.
The short answer
- Choose ArcLight to build a show as slides — cameras, screens, titles and Magic Move-style transitions — and run it into Zoom, Teams, Meet, a recording or a second display, with a presenter view and teleprompter.
- Choose OBS Studio for free, cross-platform streaming with plugins.
- Choose Ecamm for Mac-native streaming to social platforms with remote guests.
- Choose Streamlabs for gaming streams with alerts, widgets and monetization.
- Choose Camtasia when the video is made in the edit, not live.
- Choose Keynote when it's mostly slides with an occasional camera.
Feature by feature
✓ built in · — not available · partial see notes · plugin third-party add-on · ? not documented publicly as of September 2026. Sources are linked in each section below.
| Feature | ArcLight | OBS Studio | Streamlabs | XSplit | Camtasia | Ecamm | Keynote |
|---|---|---|---|---|---|---|---|
| Runs on Mac | ✓ | ✓ | ✓ | — | ✓ | ✓ | ✓ |
| Runs on Windows | — | ✓ | ✓ | ✓ | ✓ | — | — |
| Price | $49/year · 30-day trial | Free | Free / subscription | Free / subscription / lifetime | Subscription | Subscription | Free |
| Slide-style authoring | ✓ | — | — | partial | — | partial | ✓ |
| Morph transitions between scenes | ✓ Magic Move | ? | ? | ? | — | partial Live Motion | ✓ |
| Live cameras on scenes | ✓ | ✓ | ✓ | ✓ | — | ✓ | ✓ |
| Screen and window capture | ✓ | ✓ | ✓ | ✓ | ✓ record | ✓ | partial |
| Virtual camera for Zoom / Teams | ✓ | ✓ | ✓ | ✓ | — | ✓ Pro | — |
| Presenter view with notes | ✓ | — | — | — | — | — | ✓ |
| Teleprompter | ✓ voice-tracked | plugin | ? | partial | — | ? | partial |
| Color grading and LUTs | ✓ with scopes | ✓ LUT | ✓ LUT | ? | ? | ✓ LUT, Pro | — |
| Recording | ✓ program .mov | ✓ | ✓ | ✓ | ✓ | ✓ + ISO | ✓ narrated |
| Direct RTMP streaming | ✓ YouTube, Twitch, LinkedIn, custom | ✓ | ✓ | ✓ | — | ✓ | — |
| Built-in remote guests | — roadmap | plugin | ✓ | partial | — | ✓ Pro | — |
| Audio mixer | — roadmap | ✓ | ✓ | ✓ | ✓ edit | ✓ | — |
| AI agents (MCP) | ✓ built-in MCP server | partial obs-websocket API, not MCP | ? | ? | ? | ? | partial AppleScript |
| Browser source | — roadmap | ✓ | ✓ | ✓ | — | ? | — |
ArcLight vs OBS Studio
OBS Studio is free, open-source broadcast software for Windows, macOS and Linux. It streams directly to every major platform over RTMP, has a built-in virtual camera, Studio Mode, an Apply LUT filter and a large plugin ecosystem. Shows are built from scenes and sources in a mixing-console interface.
Choose OBS if
you need Windows or Linux, rely on plugins, or the price has to be zero. It's the more capable broadcast engine.
Choose ArcLight if
you'd rather build a show like a deck — slides, per-slide transitions, builds — with a presenter view and teleprompter built in, and you mostly go live through Zoom, Teams, Meet or a recording.
Sources: obsproject.com, OBS virtual camera guide, OBS filters guide.
ArcLight vs Streamlabs
Streamlabs Desktop is a streaming app for Windows and macOS built on OBS, aimed at gamers and creators: alerts, widgets, chat tools, monetization, a virtual camera, and Collab Cam for remote guests (one free, more with Ultra).
Choose Streamlabs if
you stream games or IRL content and want alerts, widgets, monetization and guests in one app.
Choose ArcLight if
you present rather than play, and want a Mac-native, deck-first tool with no account or cloud dependency.
Sources: Streamlabs Desktop, virtual camera, Collab Cam.
ArcLight vs XSplit
XSplit Broadcaster is a mature live-production and streaming app for Windows 10 and later, free with a watermark above 720p, or Premium by subscription or lifetime license.
Choose XSplit if
you're on Windows. ArcLight doesn't run there.
Choose ArcLight if
you're on a Mac. XSplit Broadcaster doesn't run there.
Source: xsplit.com/broadcaster.
ArcLight vs Camtasia
Camtasia is a screen recorder and timeline video editor for Windows and macOS, sold by subscription. It excels at the edit: cursor effects, captions, annotations and quizzes.
Choose Camtasia if
your video is made in the edit — cutting takes together, cursor highlights, captions, quizzes.
Choose ArcLight if
you'd rather produce the finished show live while you talk, and skip the edit for a talk you've rehearsed. The program recording is the video.
Source: techsmith.com/camtasia.
ArcLight vs Ecamm
Ecamm (formerly Ecamm Live) is the leading Mac-native live-streaming app: multistreaming to social platforms, browser-link guests, overlays, ISO recording, a virtual camera and LUTs on its Pro plan, and "Live Motion", which animates overlay size and position between scenes.
Choose Ecamm if
you need to bring in remote guests, record ISO tracks or use NDI today. It's ahead of ArcLight on streaming and guests.
Choose ArcLight if
you think in slides: a whole show authored as a deck, a transition on every slide, builds, a presenter view with notes, a voice-tracked teleprompter and guided per-camera color with scopes.
Sources: Ecamm features, Ecamm version history.
vMix, Airtime and Keynote
vMix
Professional Windows production: SDI, NDI, instant replay, many callers. ArcLight isn't built for that job; vMix doesn't run on a Mac.
Airtime (formerly mmhmm)
Look good in meetings and record quick async presentations over imported slides, on Mac or Windows. Choose ArcLight for several cameras and screens, a program output, color and a show you can rehearse.
Keynote
Free, excellent, and it can place a live camera on a slide. Choose ArcLight when the camera is the star: a virtual camera into calls, cutting between cameras and screens, and recording the program.
Sources: Airtime, Keynote: Add live video.
Where ArcLight falls short today
We'd rather you hear it here. ArcLight doesn't yet host remote guests, mix audio per source, record ISO tracks, show browser or NDI sources, or run on Windows or Linux. And it isn't free: $49 a year, where OBS and Keynote cost nothing. These are on our roadmap.
Questions
What is the best OBS alternative for Mac?
It depends on the job. For presenting, teaching and hosting shows, ArcLight turns slides into live video with Magic Move-style transitions, a presenter view and a teleprompter, and outputs to a virtual camera, a recording or a display. For direct streaming to social platforms with remote guests, Ecamm is the most complete Mac-native choice. For a free, cross-platform broadcast engine with plugins, OBS Studio remains the standard.
Which of these can an AI agent control?
ArcLight has a built-in MCP server, so Claude Code or any MCP client can build slides and run the show, with access off until you turn it on. OBS Studio has the obs-websocket remote-control API, which scripts and some third-party tools use, but no built-in MCP server. Keynote can be scripted with AppleScript. We couldn't confirm agent support for Streamlabs, XSplit, Camtasia or Ecamm.
How is ArcLight different from OBS Studio?
OBS organizes a show as scenes and sources in a mixing-console interface. ArcLight organizes it as slides in a Keynote-style editor, with a transition on every slide, builds, a presenter view and a teleprompter. OBS is free and runs on Windows, macOS and Linux; ArcLight is Mac-only. Both stream directly over RTMP.
Can ArcLight replace Camtasia?
Only if you'd rather produce live than edit afterwards. Camtasia is a recorder and timeline editor; ArcLight produces the finished show while you talk and records the program output.
Does ArcLight stream to YouTube or Twitch?
Yes. Go Live streams the program over RTMP to YouTube, Twitch, LinkedIn or any custom RTMP server. It also goes live through any app that accepts a camera, such as Zoom, Teams, Meet or Webex.
Is ArcLight free like OBS?
No — it's free for 30 days, then $49 a year. OBS Studio and Keynote are free; if price decides it, they win. Against Ecamm, Camtasia or Streamlabs Ultra subscriptions, ArcLight costs less than a single year.
See it for yourself.
Free for 30 days · then $49 a year, launch price locked
Coming soon
Free for 30 days · macOS 14 or later