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Mobile Development · head to head

Capacitor vs KeystoneJS

Capacitor logo

Capacitor

Mobile Development

MIT-licensed native runtime bridging web apps to iOS, Android and native APIs

From
Free
Rated
-
Full reviewWebsite
KeystoneJS logo

KeystoneJS

APIs

Powerful Node.js headless CMS framework and API platform

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Capacitor uI still renders in a system WebView, so complex animation and heavy graphics work require more manual tuning than a natively-rendered framework provides by default.; KeystoneJS database support is limited to PostgreSQL, MySQL and SQLite
  • They diverge on capability: Capacitor covers Native project generation, KeystoneJS covers REST API.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Capacitor and KeystoneJS actually diverge.

Attributes where Capacitor and KeystoneJS differ
AttributeCapacitorKeystoneJS
Pricing modelOpen source, no licence feeopen-source
PlatformsWeb, iOS, AndroidNode.js, Self-hosted
CategoryMobile DevelopmentAPIs
FoundedUnknown2016

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 Capacitor

  • Native project generation
  • Plugin bridge
  • Custom native plugins
  • Live Reload
  • Framework agnostic
  • Capacitor Assets and Configure CLIs

Only in KeystoneJS

  • REST API
  • GraphQL API
  • Admin interface
  • Node.js
  • Next.js
  • React
  • Databases
  • Node.js support

What people use each for

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

Capacitor

  • A team wrapping an existing responsive web app to publish it to the App Store and Play Storenot KeystoneJS
  • A product using React or Vue that wants native device APIs without adopting a full mobile frameworknot KeystoneJS
  • A developer who wants to drop into native Swift or Kotlin code for the parts a plugin does not covernot KeystoneJS
  • A company migrating off Apache Cordova, since Capacitor was designed as a modern, actively maintained successornot KeystoneJS

KeystoneJS

  • Headless CMS implementationnot Capacitor
  • Content management systemsnot Capacitor
  • Customizable API-driven applicationsnot Capacitor

Where each one falls short

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

Capacitor

  • UI still renders in a system WebView, so complex animation and heavy graphics work require more manual tuning than a natively-rendered framework provides by default.
  • Every native capability not covered by an official or community plugin means writing and maintaining native Swift and Kotlin code, which erodes the single-codebase promise for device-heavy apps.
  • It is maintained by the same team as Ionic, and while it does not require the Ionic UI library, its release cadence and roadmap priorities are set by a company now owned by OutSystems.
  • Cordova plugins are not automatically compatible and often need adaptation, so migrating a legacy Cordova app is a real porting project, not a drop-in swap.
  • App store review teams scrutinise WebView-wrapped apps more closely for "just a website" rejections, so thin wrapper apps carry more approval risk than natively-compiled alternatives.

KeystoneJS

  • Database support is limited to PostgreSQL, MySQL and SQLite
  • Keystone 5 is a separate legacy product documented on a different site and is not covered by the Keystone 6 docs
  • Upgrading requires following a dedicated Migrate to 8.0.0 guide, so major versions are not drop-in
  • Free support is a community Slack; enterprise-grade consulting and support is a separate paid engagement with Thinkmill and no published price

Pricing, plan by plan

Capacitor

Free
  • CapacitorFree
    • MIT licensed, unlimited apps
    • Core plugin set included
    • Community support via GitHub and Discord

KeystoneJS

Free
  • Open SourceFree
    • Full KeystoneJS
    • Community support

Which should you pick?

Choose Capacitor if

  • You need native project generation.
  • You want to start without paying.
  • You work on Web, iOS, Android.
  • You also want plugin bridge.
Capacitor review

Choose KeystoneJS if

  • You need rest api.
  • You want to start without paying.
  • You work on Node.js, Self-hosted.
  • You also want graphql api.
KeystoneJS review

Questions people ask

Is Capacitor or KeystoneJS better?
Neither clearly leads. Capacitor starts at Free and KeystoneJS at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Capacitor or KeystoneJS?
Capacitor starts at Free and KeystoneJS at Free.
Does Capacitor or KeystoneJS run on more platforms?
Capacitor runs on Web, iOS, Android. KeystoneJS runs on Node.js, Self-hosted.
Can I use Capacitor for free?
Both have a free tier, so you can try either at no cost before committing.
What is Capacitor best used for?
Capacitor is most often used for a team wrapping an existing responsive web app to publish it to the app store and play store, a product using react or vue that wants native device apis without adopting a full mobile framework, a developer who wants to drop into native swift or kotlin code for the parts a plugin does not cover, a company migrating off apache cordova, since capacitor was designed as a modern, actively maintained successor. Of those, a team wrapping an existing responsive web app to publish it to the app store and play store and a product using react or vue that wants native device apis without adopting a full mobile framework are not what KeystoneJS is typically brought in for.
What can Capacitor do that KeystoneJS cannot?
Capacitor covers Native project generation, Plugin bridge, Custom native plugins, Live Reload. KeystoneJS covers REST API, GraphQL API, Admin interface, Node.js.

Answered from the vendors’ own pages

Capacitor: Do I need Ionic components to use Capacitor?

No. Capacitor is the native runtime and plugin bridge; the Ionic UI component library is a separate, optional layer.

KeystoneJS: Is KeystoneJS free?

Yes, KeystoneJS is free and open source with no licensing fees. Core platform has no lock-in and is contributed to by 250+ developers.

Source
Capacitor: Is Capacitor free for commercial apps?

Yes, it is MIT licensed with no fee for commercial use, and there is no paid tier of Capacitor itself.

KeystoneJS: What are hosting costs for KeystoneJS?

KeystoneJS is self-hosted and deployment-agnostic. Hosting costs depend on your chosen deployment platform (Vercel, AWS, Heroku, etc.) and infrastructure, not KeystoneJS itself.

Source
Capacitor: Is it a replacement for Cordova?

Functionally yes for most teams, though existing Cordova plugins need adaptation rather than working unmodified.

KeystoneJS: Does KeystoneJS offer paid support?

Enterprise support with tailored options is available from Thinkmill, the company behind KeystoneJS. Pricing details available upon request.

Source
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