Softwr

Developer Tools · head to head

Cortex vs SolidStart

Cortex logo

Cortex

Developer Tools

Internal developer portal that scores service ownership and maturity rather than just cataloguing services

From
On request
Free plan
No
Full reviewWebsite
SolidStart logo

SolidStart

Web Development

Full-stack meta-framework for SolidJS with fine-grained reactivity

From
Free
Free plan
Yes
Full reviewWebsite

The short version

  • Only SolidStart has a free tier, so it costs nothing to try first.
  • Each has a real cost: Cortex pricing is quote only, so a platform team cannot build a business case or compare against the true cost of self-hosted Backstage without entering a sales cycle first.; SolidStart smaller ecosystem compared to Next.js or Remix due to relative newness
  • They diverge on capability: Cortex covers Service catalogue, SolidStart covers Fine-grained reactivity.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Cortex and SolidStart actually diverge.

Attributes where Cortex and SolidStart differ
AttributeCortexSolidStart
Starting priceOn requestFree
Pricing modelquoteopen-source
Free tierNoYes
PlatformsWeb, APIWeb
CategoryDeveloper ToolsWeb Development

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 Cortex

  • Service catalogue
  • Scorecards
  • Initiatives
  • Self-service templates
  • Query language
  • Eng intelligence
  • Integrations layer
  • On-call and ownership mapping

Only in SolidStart

  • Fine-grained reactivity
  • Server actions
  • Single-flight mutations
  • Request deduplication
  • Multi-router support
  • Automatic API generation
  • Vite integration

What people use each for

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

Cortex

  • A platform team that needs to prove to leadership how far a Kubernetes or framework migration has actually progressed across hundreds of servicesnot SolidStart
  • An organisation where ownership of production services is genuinely unknown after reorganisations or acquisitionsnot SolidStart
  • Enforcing production readiness standards on new services at creation time rather than at incident reviewnot SolidStart
  • Replacing a self-hosted Backstage that is consuming a full-time engineer or two just to stay upgradednot SolidStart

SolidStart

  • Building lightweight full-stack applications with minimal runtime overheadnot Cortex
  • Projects requiring fine-grained reactivity and automatic dependency trackingnot Cortex
  • Applications targeting multiple deployment platforms with single codebasenot Cortex
  • Teams prioritizing performance and small bundle sizesnot Cortex

Where each one falls short

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

Cortex

  • Pricing is quote only, so a platform team cannot build a business case or compare against the true cost of self-hosted Backstage without entering a sales cycle first.
  • The catalogue is only as accurate as the metadata you supply, so an organisation with inconsistent repository conventions spends its first quarter cleaning data before any scorecard means anything.
  • Scorecards create political friction: publishing a per-team grade turns an engineering standard into a performance metric, and teams will game the rules rather than fix the underlying issue.
  • It is closed source and hosted, so organisations with strict data residency or air-gap requirements have limited options compared with running Backstage themselves.
  • Value scales with organisation size, so a company with fifty engineers and thirty services will find the catalogue tells them nothing they did not already know while still paying an enterprise contract.

SolidStart

  • Smaller ecosystem compared to Next.js or Remix due to relative newness
  • SolidJS less familiar to developers with React experience
  • Community documentation not as extensive as larger frameworks
  • Limited third-party UI component libraries compared to React ecosystem

Pricing, plan by plan

Cortex

On request
  • Cortex$undefined/year
    • Service catalogue and ownership mapping
    • Scorecards and initiatives
    • Self-service templates

SolidStart

Free

No published plan breakdown. See the SolidStart review.

Which should you pick?

Choose Cortex if

  • You need service catalogue.
  • You work on Web, API.
  • You also want scorecards.
Cortex review

Choose SolidStart if

  • You need fine-grained reactivity.
  • You want to start without paying.
  • You also want server actions.
SolidStart review

Questions people ask

Is Cortex or SolidStart better?
Neither clearly leads. Cortex starts at On request and SolidStart at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cortex or SolidStart?
SolidStart has a free tier; the other does not. Paid plans start at On request for Cortex and Free for SolidStart.
Does Cortex or SolidStart run on more platforms?
Cortex runs on Web, API. SolidStart runs on Web.
Can I use SolidStart for free?
Yes. SolidStart has a free tier, so you can try it without paying. Cortex starts at On request.
What is Cortex best used for?
Cortex is most often used for a platform team that needs to prove to leadership how far a kubernetes or framework migration has actually progressed across hundreds of services, an organisation where ownership of production services is genuinely unknown after reorganisations or acquisitions, enforcing production readiness standards on new services at creation time rather than at incident review, replacing a self-hosted backstage that is consuming a full-time engineer or two just to stay upgraded. Of those, a platform team that needs to prove to leadership how far a kubernetes or framework migration has actually progressed across hundreds of services and an organisation where ownership of production services is genuinely unknown after reorganisations or acquisitions are not what SolidStart is typically brought in for.
What can Cortex do that SolidStart cannot?
Cortex covers Service catalogue, Scorecards, Initiatives, Self-service templates. SolidStart covers Fine-grained reactivity, Server actions, Single-flight mutations, Request deduplication.

Answered from the vendors’ own pages

Cortex: How is Cortex different from Backstage?

Backstage is an open source framework you build and staff. Cortex is a hosted product with scorecards and initiatives out of the box and no platform team required to keep it running.

SolidStart: What is SolidJS and how does it differ from React?

SolidJS uses fine-grained reactivity and automatic dependency tracking instead of React's virtual DOM, resulting in smaller bundles and better performance.

Source
Cortex: Is pricing published?

No. Cortex requires a sales conversation and prepares a custom proposal.

SolidStart: How many deployment platforms does SolidStart support?

SolidStart supports over 20 deployment platforms including Cloudflare, Netlify, Vercel, Deno, AWS, and Azure through Vite plugins.

Source
Cortex: Can it self-host?

It is offered as a hosted product; on-premise arrangements are handled through sales rather than published.

SolidStart: Can I use TanStack Router with SolidStart?

Yes, SolidStart supports using either the official Solid Router or TanStack Router depending on project requirements.

Source
Cortex: What is the main adoption risk?

Bad or missing service metadata. The catalogue and every scorecard on top of it inherit whatever quality your repositories already have.

Share

Related pages

More on Cortex

More on SolidStart

Keep looking

Other head to heads