vioscaleAI
Comparison

Castr vs SRS

On the evidence we track, Castr leads this comparison with a composite score of 69/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Castr full profile →SRS full profile →
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★Castr69
SRS48
Score
vioscaleAI score
Castr69 / 100medium · 61%
SRS48 / 100medium · 60%
Pricing
Free tier
Castr✓
SRS✓
Model
Castrfreemium
SRSfree
Price level
Castrmid
SRSfree
Starting price
Castr$19.99
SRS–
Transparent
Castr✓
SRS✓
Integrations
Count
Castr5
SRS–
Security
Gdpr
Castr✓
SRS–
Scorecard
Castr–
SRS6.2
Vulnerabilities
Reliability
Sla pct
Castr99.9
SRS–
Status page
Castr✓
SRS–
Adoption
Dependent repos
Castr–
SRS0
Github stars
Castr–
SRS29,216
Activity
Commits last 30d
Castr–
SRS22
Release
Cadence days
Castr–
SRS30
History
Castr–
SRS20 items
License
Spdx
Castr–
SRSMIT
Language
Primary
Castr–
SRSC++
Market
Availability
Content
Faq

Capabilities

Feature-by-feature on the axes that matter for live streaming. “-” means undocumented, not absent.

Capabilities
Architecture model
CastrBrowser cloud studio
SRS-
Simulcast multi destination rtmp output hub
Castr✓
SRS-
Remote guest browser invites for interviews webrtc
Castr-
SRS-
Custom lower thirds graphics and brand overlays
Castr-
SRS-
ISO track recording for isolated guest audio video
Castr-
SRS-
Hardware encoding acceleration nvenc quicksync
Castr-
SRS-
Srt secure reliable transport protocol support
Castr✓
SRS✓
Multi network unified aggregated chat feed
Castr-
SRS-
Chroma key green screen and virtual backgrounds
Castr-
SRS-
Ndi network device interface feed ingestion
Castr-
SRS-
SOC2 type ii
Castr-
SRS-
Gpl or permissive oss license
Castr-
SRS✓
Pricing model
CastrFlat monthly subscription
SRSFree open source

What each one is

The product in its own terms, so the numbers below have context.

Castr

Leader

Consolidates live video streaming, hosting, multistreaming to multiple destinations, recording, and monetization into a single platform with 24/7 human support included.

Independently observed

SRS

A high-performance server that handles multiple streaming protocols and codec formats, supporting Linux and macOS across various processor architectures.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Castr

Leader
from $19.99/moSubscriptionFree tier7-day trial

From $19.99/month ($199.99/year with 2 months free). Free 7-day trial on Starter plan.

  • Starter$19.99/month or $199.99/year (2 months free)
    • Multiple ingest protocols and SRT
    • Embedded player and video analytics
    • Cloud recording and Live-to-VOD
  • Standard$499.99/year
    • SRT/RTMP pull links
  • Premium$199.99/month or $1,999.99/year (2 months free)
    • Adaptive bitrate and custom transcoding
    • API access and three team members
  • Enterprise$3,499.99/year
    • Low-latency playback and HLS for VOD
    • Dedicated support on annual billing
  • Events$7,499.99/year
    • Branded web app included
    • Native mobile and TV apps available as add-ons
as of verify ↗

SRS

FreeFree tier

Free and open-source

as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Castr✓
SRS✗
iOS
Castr✓
SRS✗
Android
Castr✓
SRS✗
macOS
Castr✗
SRS✓
Linux
Castr✗
SRS✓
CLI
Castr✗
SRS✓
Deployment
Cloud / SaaS
Castr✓
SRS✗
Self-hosted
Castr✗
SRS✓
On-premise
Castr✗
SRS✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

Castr

Leader
5 total
  • Wirecast
  • YouTube
  • Facebook
  • LinkedIn
  • Twitch
Independently observed

SRS

Not documented yet.

Still deciding?

Castr or SRS: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.