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Developer Tools · head to head

PartyKit vs SentinelOne Singularity

P

PartyKit

Developer Tools

Platform for building and deploying realtime multiplayer servers on the edge

From
Free
Free plan
Yes
Full reviewWebsite
SentinelOne Singularity logo

SentinelOne Singularity

Cybersecurity

Autonomous AI-powered endpoint security

From
$5.83/month
Free plan
No
Full reviewWebsite

The short version

  • Only PartyKit has a free tier, so it costs nothing to try first.
  • Each has a real cost: PartyKit documentation and FAQ material on the marketing site is sparse compared to larger realtime platforms.; SentinelOne Singularity deployment and configuration requires professional services ($5,000 to $25,000)
  • They diverge on capability: PartyKit covers Stateful edge servers, SentinelOne Singularity covers Behavioral AI.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which PartyKit and SentinelOne Singularity actually diverge.

Attributes where PartyKit and SentinelOne Singularity differ
AttributePartyKitSentinelOne Singularity
Starting priceFree$5.83/month
Pricing modelfreemiumUnknown
Free tierYesNo
Platformsweb, apiWindows, macOS, Linux, Cloud, Mobile
CategoryDeveloper ToolsCybersecurity
FoundedUnknown2013

Identical on both: user rating (Not yet rated).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in PartyKit

  • Stateful edge servers
  • WebSocket-first API
  • CRDT library compatibility
  • Framework integrations
  • Global edge deployment
  • Custom domains

Only in SentinelOne Singularity

  • Behavioral AI
  • Autonomous response
  • ActiveEDR
  • Storyline technology
  • Rollback remediation
  • Ranger IoT
  • Cloud workload protection
  • Identity security

What people use each for

The jobs each tool is most often brought in to do.

PartyKit

  • Multiplayer collaborative appsnot SentinelOne Singularity
  • Realtime AI agent backendsnot SentinelOne Singularity
  • Live cursors and presencenot SentinelOne Singularity
  • Collaborative whiteboards and documentsnot SentinelOne Singularity

SentinelOne Singularity

  • Endpoint Securitynot PartyKit
  • Edrnot PartyKit
  • Xdrnot PartyKit

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

PartyKit

  • Documentation and FAQ material on the marketing site is sparse compared to larger realtime platforms.
  • Commercial free tier requires deploying to the user's own Cloudflare account, adding setup complexity.
  • Storage on the free Individual plan clears every 24 hours, limiting it to prototyping rather than persistent production data.
  • Smaller ecosystem and community than more established realtime infrastructure providers.

SentinelOne Singularity

  • Deployment and configuration requires professional services ($5,000 to $25,000)
  • Optional modules like Ranger and Vigilance add to total cost of ownership
  • Complex pricing tiers make budgeting difficult for large deployments

Pricing, plan by plan

PartyKit

Free
  • IndividualFree
    • Up to 10 live projects
    • Deploy to the global edge platform
    • Storage clears every 24 hours
  • CommercialFree
    • Unlimited projects
    • Custom domains
    • Runs on your own Cloudflare account; pay only Cloudflare usage

SentinelOne Singularity

$5.83/month
  • Singularity Core$5.83/month per endpoint
    • Endpoint Protection Platform (EPP)
    • Malware prevention
    • Threat isolation
  • Singularity Control$6.67/month per endpoint
    • All Core features
    • Device control
    • Firewall control
  • Singularity Complete$8.25/month per endpoint
    • All Control features
    • Endpoint Detection and Response
    • XDR capabilities
  • Singularity Commercial$17.5/month per endpoint
    • All Complete features
    • Identity protection
    • Cloud protection

Which should you pick?

Choose PartyKit if

  • You need stateful edge servers.
  • You want to start without paying.
  • You work on web, api.
  • You also want websocket-first api.
PartyKit review

Choose SentinelOne Singularity if

  • You need behavioral ai.
  • You work on Windows, macOS, Linux, Cloud, Mobile.
  • You also want autonomous response.
SentinelOne Singularity review

Questions people ask

Is PartyKit or SentinelOne Singularity better?
Neither clearly leads. PartyKit starts at Free and SentinelOne Singularity at $5.83/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, PartyKit or SentinelOne Singularity?
PartyKit has a free tier; the other does not. Paid plans start at Free for PartyKit and $5.83/month for SentinelOne Singularity.
Does PartyKit or SentinelOne Singularity run on more platforms?
PartyKit runs on web, api. SentinelOne Singularity runs on Windows, macOS, Linux, Cloud, Mobile.
Can I use PartyKit for free?
Yes. PartyKit has a free tier, so you can try it without paying. SentinelOne Singularity starts at $5.83/month.
What is PartyKit best used for?
PartyKit is most often used for multiplayer collaborative apps, realtime ai agent backends, live cursors and presence, collaborative whiteboards and documents. Of those, multiplayer collaborative apps and realtime ai agent backends are not what SentinelOne Singularity is typically brought in for.
What can PartyKit do that SentinelOne Singularity cannot?
PartyKit covers Stateful edge servers, WebSocket-first API, CRDT library compatibility, Framework integrations. SentinelOne Singularity covers Behavioral AI, Autonomous response, ActiveEDR, Storyline technology.

Answered from the vendors’ own pages

PartyKit: How much does PartyKit cost?

PartyKit is completely free. Both the Individual and Commercial plans have no upfront costs.

Source
SentinelOne Singularity: What does SentinelOne Singularity XDR cover?

Singularity XDR unifies detection and response across endpoints, cloud, identity, network, and mobile, providing centralized visibility and automated response across all attack surfaces.

Source
PartyKit: What is PartyKit's Individual plan?

The Individual plan is free and includes deployment to a global edge platform, support for up to 10 live projects, and is suitable for small projects. Storage is cleared every 24 hours.

Source
SentinelOne Singularity: How does SentinelOne correlate data across security tools?

Singularity normalizes data from endpoints, identity, cloud, and third-party security tools into a unified data layer, enabling automatic correlation of signals without manual integration.

Source
PartyKit: What is PartyKit's Commercial plan?

The Commercial plan is free but requires deploying to your own Cloudflare account. It includes custom domains, unlimited projects, and you pay only your Cloudflare usage costs.

Source
SentinelOne Singularity: Can SentinelOne integrate with existing security tools?

Yes, Singularity Marketplace provides pre-built, one-click integrations with email, network, firewall, and SaaS security tools, avoiding vendor lock-in while extending detection capabilities.

Source
PartyKit: Can I upgrade from Individual to Commercial plan?

Yes, both plans are free but offer different feature sets. The Commercial plan removes project restrictions but requires managing your own Cloudflare infrastructure.

Source
SentinelOne Singularity: What is the pricing model for SentinelOne Singularity?

SentinelOne pricing ranges from $5.83 to $17.50 per endpoint per month across five tiers, with optional add-on modules and enterprise pricing available on request.

Source
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