Multistream vs Castr
A free app for your whole stream, and Multistream Cloud with disconnect protection for $10/mo.
Where Multistream gives you more
Castr has no free plan, just a 7-day trial, and multistreaming starts at $19.99 a month. Multistream's app is free, and Pro at $10 a month adds the cloud: up to 12 platforms, kept live on your BRB clip if OBS drops.
1. Free to start, and to stay
Multistream: The whole app is free: chat, alerts, overlays, the bot and more. When you want the cloud, Pro is $10/mo for up to 12 platforms.
Castr: Castr starts with a 7-day trial, then plans from $19.99/mo.
2. Stay live when OBS drops, for $10
Multistream: If OBS or your internet drops, Pro keeps every platform live on your BRB clip for up to 30 minutes. When OBS is back, you're on the same broadcast, with the same chat.
Castr: Castr's backup ingest starts on Ultra, at $349.99/mo.
3. Every chat in one place
Multistream: Twitch, YouTube, Kick, TikTok and Instagram chat in one window, free in the app, and on your stream as an overlay.
Castr: Castr's combined chat overlay covers YouTube, Facebook and Twitch.
4. Alerts, goals and polls built in
Multistream: Follows, subs and tips pop up on your stream, and the scene editor lets you design your own. Goals, polls, a timer and a wheel come with them, free.
Castr: Castr's website doesn't list alerts.
5. Horizontal and vertical at once
Multistream: The free Multistream Vertical script for OBS sends a 9:16 stream to TikTok, Instagram and Shorts next to your main one.
Castr: Castr's website doesn't list a vertical feed.
Questions, answered
Is Multistream free?
Yes. The app is free: chat from every platform, alerts, overlays, the chat bot and text to speech. It can also multistream straight from your PC when your upload can carry every platform. Pro, at $10/mo, adds Multistream Cloud: OBS sends one stream, the cloud sends it to up to 12 platforms and keeps them live if OBS drops.
Does Multistream work with OBS?
Yes. Multistream is built around OBS: point OBS at it once and press Start Streaming as usual. The app walks you through it and checks your OBS settings.
Can I switch from Castr?
Yes, in a few minutes: download the app, connect your platforms, and point OBS at Multistream. Your channels, followers and chat stay where they are.
Which platforms can I stream to?
Twitch, YouTube, Kick, TikTok, Instagram, Facebook, X and more, plus any RTMP or SRT server: up to 12 at once with Multistream Cloud.
Every feature, side by side
| Feature | Multistream | Castr |
|---|---|---|
| Price | ||
| Free plan | Yes: the whole app, multistreaming from your PC included | No (7-day trial) |
| Multistreaming to 3+ platforms | Multistream Cloud: up to 12 platforms for $10/mo | From $19.99/mo (6 platforms) |
| Built into the app | ||
| TikTok gift triggers | Free: a TikTok gift can switch scenes, post to Discord and more | Not listed |
| Song requests | Free: !play adds the song to your Spotify queue | Not listed |
| Loyalty points and games | Free: points, a !redeem store, !gamble, bets and duels | Not listed |
| Giveaways | Free: viewers enter with a keyword | Not listed |
| Auto-moderation (filters that get stricter for repeat offenders) | Free: link, word, caps and spam filters with a ladder | Filters in Castr's own player chat |
| Twitch channel-point rewards | Free: make rewards and work through redemptions | Not listed |
| Subathon timer | Free: subs, gifts, bits, tips and TikTok coins add time | Not listed |
| Emote wall | Free: emotes from chat float across your stream | Not listed |
| Import your old bot (Nightbot, StreamElements, Streamlabs) | Free: bring your commands over | Not listed |
| Stream Deck buttons | Free: ready-made button links | Not listed |
| Tips from Ko-fi and more | Free: Ko-fi, Streamlabs, StreamElements, TipeeeStream, Fourthwall | Not listed |
| Multistreaming | ||
| Streams from OBS | Yes, with a setup guide and a check of your OBS settings | Yes (RTMP, RTMPS, SRT) |
| Vertical feed next to the horizontal one | Yes, with the free Multistream Vertical script for OBS | Not listed |
| Disconnect protection (platforms stay live if OBS drops) | Pro: your BRB clip plays for up to 30 minutes | Backup ingest: Ultra ($349.99/mo) and up |
| Chat | ||
| All your chats in one place | Free in the app: Twitch, YouTube, Kick, TikTok and Instagram · Pro on the website | Combined chat overlay: YouTube, Facebook, Twitch |
| Chat on your stream (overlay) | Free, with its own looks, highlights and filters | Yes |
| Chat bot (commands, timers, moderation, points) | Free in the app · Pro runs it in the cloud with your PC off | Not listed |
| On your stream | ||
| Alerts for follows, subs and tips | Free, with a scene editor for your own alerts | Not listed |
| Goals, polls, timer, wheel, event list | Free (1 goal at a time; as many as you like on Pro) | Not listed |
| Text to speech | Free: chat and alerts read out, with many voice services | Not listed |
| Automations (actions on events: OBS scenes, Discord, lights) | Free: 3 actions · as many as you like on Pro | Not listed |
| Running your stream | ||
| One title for every platform | Free: Twitch, Kick and YouTube at once | Not listed |
| Analytics | Free in the app: growth, sessions, audience, viewers | Not listed |
Their side comes from their own websites, checked on October 17, 2026.