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APIs · head to head

Apollo GraphQL vs Windmill

Apollo GraphQL logo

Apollo GraphQL

APIs

GraphQL platform and API orchestration layer for building unified graphs

From
Free
Rated
-
Full reviewWebsite
Windmill logo

Windmill

Automation Integration

Open-source developer platform for building scripts, workflows, and internal apps

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Apollo GraphQL pricing beyond the Developer tier requires contacting sales, making cost comparison harder for mid-size teams.; Windmill free self-hosted tier caps SSO users at 10 and workspaces at 3, requiring Enterprise for larger teams.
  • They diverge on capability: Apollo GraphQL covers Apollo Connectors, Windmill covers Script-to-workflow engine.
  • Prices and features above were last checked on 29 August 2026.

Where they differ

Only the attributes on which Apollo GraphQL and Windmill actually diverge.

Attributes where Apollo GraphQL and Windmill differ
AttributeApollo GraphQLWindmill
Pricing modelfreemiumopen-source
Platformsweb, apiweb, api, linux, windows, mac
CategoryAPIsAutomation Integration

Identical on both: starting price (Free), free tier (Yes), 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 Apollo GraphQL

  • Apollo Connectors
  • GraphOS Router
  • Schema registry
  • Schema checks
  • Response caching
  • Audit logging

Only in Windmill

  • Script-to-workflow engine
  • Auto-generated UIs
  • Self-hosted deployment
  • Git sync
  • SSO support
  • Audit logs

What people use each for

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

Apollo GraphQL

  • Federating multiple backend services into one GraphQL APInot Windmill
  • Wrapping legacy REST APIs for frontend consumptionnot Windmill
  • Enterprise API governance with schema checks and audit logsnot Windmill
  • Reducing frontend over-fetching and under-fetching of datanot Windmill

Windmill

  • Turning ad-hoc scripts into scheduled jobs and APIsnot Apollo GraphQL
  • Building internal tools from existing Python/TypeScript codenot Apollo GraphQL
  • Self-hosted automation for engineering teamsnot Apollo GraphQL
  • Orchestrating multi-language workflowsnot Apollo GraphQL

Where each one falls short

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

Apollo GraphQL

  • Pricing beyond the Developer tier requires contacting sales, making cost comparison harder for mid-size teams.
  • Adopting GraphOS effectively requires buy-in to the GraphQL paradigm, which is a larger architectural shift than adding a REST gateway.
  • The free plan's 1-day data retention and 60 req/min self-hosted router limit make it unsuitable for production use.
  • Volume-based per-request pricing can become expensive at very high request volumes compared to flat-rate API gateways.

Windmill

  • Free self-hosted tier caps SSO users at 10 and workspaces at 3, requiring Enterprise for larger teams.
  • Compute unit and seat-based pricing (developer vs. operator seats, worker compute units) adds pricing complexity beyond a flat monthly fee.
  • Email triggers are capped at 100/day on the free tier, limiting event-driven use cases without upgrading.
  • Smaller ecosystem of pre-built integrations compared to more established automation tools like n8n.

Pricing, plan by plan

Apollo GraphQL

Free
  • FreeFree
    • Up to 3 developers
    • 1-day data retention
    • Community support
  • Developer$5/month
    • $5 per million requests with volume discounts
    • $50 usage credit for new signups
    • Up to 10 developers
  • Standard$undefined/month
    • Up to 30 developers
    • 90-day data retention
    • Standard support with SLA
  • Enterprise$undefined/month
    • Unlimited developers
    • 18-month data retention
    • 24x7x365 support with SLA

Windmill

Free
  • Free / Open-sourceFree
    • Unlimited executions
    • Self-hosted deployment
    • Max 10 users with SSO
  • Enterprise$120/month
    • Unlimited executions and workspaces
    • Uncapped SSO seats
    • 24/7 priority support (3-hour response)

Which should you pick?

Choose Apollo GraphQL if

  • You need apollo connectors.
  • You want to start without paying.
  • You work on web, api.
  • You also want graphos router.
Apollo GraphQL review

Choose Windmill if

  • You need script-to-workflow engine.
  • You want to start without paying.
  • You work on web, api, linux, windows, mac.
  • You also want auto-generated uis.
Windmill review

Questions people ask

Is Apollo GraphQL or Windmill better?
Neither clearly leads. Apollo GraphQL starts at Free and Windmill at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Apollo GraphQL or Windmill?
Apollo GraphQL starts at Free and Windmill at Free.
Does Apollo GraphQL or Windmill run on more platforms?
Apollo GraphQL runs on web, api. Windmill runs on web, api, linux, windows, mac.
Can I use Apollo GraphQL for free?
Both have a free tier, so you can try either at no cost before committing.
What is Apollo GraphQL best used for?
Apollo GraphQL is most often used for federating multiple backend services into one graphql api, wrapping legacy rest apis for frontend consumption, enterprise api governance with schema checks and audit logs, reducing frontend over-fetching and under-fetching of data. Of those, federating multiple backend services into one graphql api and wrapping legacy rest apis for frontend consumption are not what Windmill is typically brought in for.
What can Apollo GraphQL do that Windmill cannot?
Apollo GraphQL covers Apollo Connectors, GraphOS Router, Schema registry, Schema checks. Windmill covers Script-to-workflow engine, Auto-generated UIs, Self-hosted deployment, Git sync.

Answered from the vendors’ own pages

Apollo GraphQL: What does Apollo GraphQL cost?

The Free plan supports up to 3 developers at no cost. Developer plan starts at $5 per million requests with a $50 signup credit, while Standard and Enterprise require contacting sales for custom pricing.

Source
Windmill: What does Windmill cost?

Windmill's Free and Open-source edition is $0/month for self-hosted use with unlimited executions, while Enterprise starts at $120/month with unlimited workspaces and uncapped SSO seats, priced further by developer/operator seats and compute units.

Source
Apollo GraphQL: Is there a free plan and what are its limits?

Yes, the Free 'Forever Free' plan supports up to 3 developers, 1-day data retention for checks and insights, and a self-hosted router capped at 60 requests per minute.

Source
Windmill: Is there a free plan and what are its limits?

The free self-hosted plan supports unlimited executions but caps SSO at 10 users, workspaces at 3, groups/permissions at 4, and email triggers at 100 per day.

Source
Apollo GraphQL: How is usage metered on paid plans?

Standard requests are billed per million operations with tiered volume discounts, starting at $5.00/million for the first 250M and dropping to $3.00/million beyond 5B, with similar tiered pricing for subscription update events.

Source
Windmill: How is usage metered on Windmill Enterprise?

Enterprise usage is metered through seats (developer seats at $20/month, operator seats at $10/month) and compute units, e.g. $100/month for 2 standard-worker compute units.

Source
Windmill: What happens to a self-hosted Windmill deployment if the company shuts down?

The pricing page addresses this directly as an FAQ topic, noting that self-hosted applications built on the open-source edition can continue running independently of Windmill the company.

Source
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