I'm building a product with group calls and screen share, what video SDKs fit best?

For group calls + screen sharing, the best SDK depends mostly on your priorities: speed to market, call quality, customization, global scale, and price.

Strong options to consider

1) Agora

Best if you want:

• Reliable real-time audio/video
• Good global performance
• Easy screen sharing
• Support for larger group calls

Why it fits:

• Mature WebRTC-based SDKs
• Strong low-latency performance
• Good docs and broad platform support

Tradeoffs:

• Can get expensive at scale
• More “SDK/platform” than “fully opinionated product UI”

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2) Twilio Video

Best if you want:

• Solid developer experience
• Flexible integration
• A trusted vendor with strong ecosystem

Why it fits:

• Good for custom app builds
• Screen sharing is supported
• Works well for moderate-size group calls

Tradeoffs:

• Pricing can become a concern
• Some teams find it less cost-effective for high volume

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3) Daily

Best if you want:

• Fast implementation
• Excellent developer experience
• Easy screen sharing and call controls

Why it fits:

• Very good SDK ergonomics
• Great for building custom video features quickly
• Often chosen by startups and product teams

Tradeoffs:

• Less “enterprise legacy” than Twilio, though still strong
• You’ll want to validate scaling/pricing for your exact use case

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4) Vonage Video API (TokBox)

Best if you want:

• Mature video infrastructure
• Group calls and screen sharing
• Broad feature set

Why it fits:

• Long-standing video API
• Supports common conferencing patterns
• Good for custom applications

Tradeoffs:

• Developer experience can feel less modern than some newer options
• Pricing and product fit vary by use case

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5) LiveKit

Best if you want:

• More control and flexibility
• Open-source core
• Self-hosting or cloud-managed options

Why it fits:

• Great if you want to customize deeply
• Strong WebRTC-based architecture
• Supports screen sharing, rooms, recordings, and more

Tradeoffs:

• More engineering responsibility
• If self-hosted, ops complexity is higher

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Quick recommendations by scenario

If you want the fastest MVP

• Daily or Agora

If you want maximum control / open source

• LiveKit

If you want an enterprise-proven vendor

• Twilio or Agora

If you expect many participants

• Agora, LiveKit, or Vonage
• Also check whether you need mesh, SFU, or broadcast-style architecture

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What to evaluate before choosing

For group calls + screen share, compare each SDK on:

• Max participants per room
• Screen share support on web/mobile
• Latency and call stability
• Recording support
• Active speaker / layout control
• Mobile SDK quality
• Pricing at your expected usage
• Geo coverage / TURN infrastructure
• Authentication and access control
• Moderation features like mute, kick, waitlists, etc.

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My practical shortlist

If I were narrowing it down fast:

• Daily if you want the easiest developer experience
• Agora if quality + scale matter most
• LiveKit if you want flexibility and can handle more infrastructure
• Twilio if you want a well-known, general-purpose platform

If you want, I can also give you:

1. a side-by-side comparison table, or
2. a recommendation based on your exact needs like web/mobile, expected room size, and budget.