Comparisons

Castream vs Streamlabs (2026)

This is the comparison that confuses people, because both tools say "streaming" and both have mobile apps — but they're built for different species of streamer. Streamlabs is desktop software for PC gamers with overlays, alerts, and themes. Castream is a phone app for multistreaming from anywhere in about a minute.

The one-paragraph version: if your battlestation has RGB lighting, you're probably a Streamlabs person. If your camera is your phone and your studio is wherever you're standing, you're probably a Castream person. Everything below is for the people in between.

Where they overlap

Both tools multistream — one broadcast forwarded to YouTube, Twitch, Facebook, and friends simultaneously. Both have free tiers. Both cover the big destinations. If you squint, they look like competitors. Un-squint and the differences show up fast.

The core difference: desk vs. pocket

Streamlabs is a desktop application. Its world is your PC: game capture, overlay scenes, alert boxes, chat widgets, donation tickers. The mobile app exists, but it's a companion — and here's the detail that matters: mobile multistreaming on Streamlabs is gated behind a paid Ultra subscription. The free mobile experience is deliberately limited.

Castream is a phone app. Its world is your camera: open the app, your destinations are already connected (YouTube and Twitch via OAuth, Facebook Pages, TikTok and Instagram via RTMP, custom RTMP), tap Go Live. Multistreaming from the phone is the product, not the upsell — the free tier includes 2 simultaneous destinations with no watermark.

So the real question isn't "which is better." It's "where do you stream from?"

Pricing, side by side

	Free tier	Mobile multistreaming	First paid step
Castream	$0 — 2 destinations, unlimited 5-min sessions, 720p, no watermark, no credit card	Included free	Creator $16/mo (3 destinations, unlimited time); Pro $26/mo (5 destinations, 1080p)
Streamlabs	$0 — desktop streaming with overlays	Paid Ultra only	Ultra subscription (for mobile multistreaming + extras)

Streamlabs' free desktop tier is genuinely generous — that's how it built its audience. But notice the shape: free where you're at a desk, paid where you're on a phone. Castream is the inverse: the phone is the free product.

Honest strengths of Streamlabs

Credit where it's due — Streamlabs wins outright on:

Overlays and alerts. The theme library, alert boxes, and widgets are the best in the business for making a desktop stream look produced. Castream doesn't do overlay scenes, full stop.
PC game capture. If you're streaming gameplay from your computer, Streamlabs is purpose-built and excellent at it.
Desktop ecosystem. Plugins, integrations, chatbot, merch store tie-ins — a decade of accumulated PC-streaming infrastructure.

If any of those are your daily reality, Streamlabs is the right call and this comparison is over.

Where Castream pulls ahead

Actually going live from your phone. Native iOS and Android apps, camera streaming, destination toggles, Go Live — no desktop involved at any step. (iPhone walkthrough, Android walkthrough.)
Free means free on mobile. Two destinations, no watermark, no credit card. Streamlabs' equivalent costs a subscription.
Speed. The whole pitch is sub-minute: install, connect once, tap. No scenes, no sources, no encoder settings.
Simplicity as a feature. There's a real audience — fitness coaches, realtors, church volunteers, IRL streamers — for whom OBS-style configuration is the enemy.

The migration path (if you're switching)

Nobody needs to burn their setup down. The sane way people do this:

Keep Streamlabs for the desk. Your overlays, scenes, and alerts stay exactly where they are. Nothing to rebuild.
Install Castream on your phone and connect the same destinations — YouTube and Twitch via OAuth take about a minute each.
Do your next IRL, event, or "away from desk" stream on Castream. That's the stream Streamlabs was never good at anyway.
Decide after a month whether the phone streams earned their keep. Most people end up with both: Streamlabs for the produced show, Castream for everything spontaneous.

The two tools don't fight over the same moment. Your Tuesday night gaming stream stays on the PC. Your Saturday at the park, the conference hallway interview, the "something cool is happening right now" stream — that's the phone, and that's Castream.

The cost math, honestly

Run the numbers for your actual life. If you stream exclusively from a desk, Streamlabs free + your existing setup costs $0 and Castream adds nothing — don't buy tools you won't use. If you stream from your phone even twice a month, compare Castream's free tier (2 destinations, no watermark) against Streamlabs Ultra's monthly price for the same capability. The break-even is immediate: one of them is free.

And if you're the hybrid — desk show weekly, phone streams whenever — the combo of Streamlabs free (desk) + Castream free (phone) covers everything for $0. That's a legitimate setup, not a hack. Upgrade either one only when a specific limit starts costing you viewers.

Quick answers

I'm a PC gamer. Which one? Streamlabs, and it's not close. Game capture, overlays, alerts — that's its home turf.

I stream from my phone. Which one? Castream. It's the product; on Streamlabs it's the upsell.

Can I multistream for free on either? Yes on both, with different shapes: Castream free gives you 2 destinations from your phone with no watermark. Streamlabs free gives you desktop multistreaming; phone multistreaming needs Ultra.

Do I need a computer for Castream? No. Everything core happens in the phone app; Castream Web exists for scheduling, OBS ingest, and management if you ever want a bigger screen.

Which is cheaper? Depends on your setup. Phone streamer: Castream ($0–$26/mo). Desktop gamer who wants mobile too: Streamlabs free + Ultra. Apples and oranges — pick the fruit you actually eat.

One more comparison if you're shopping around: Castream vs Restream covers the other giant in the space with the same no-spin approach.