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APIs · head to head

Flybits vs KeystoneJS

Flybits logo

Flybits

APIs

Contextual personalisation and decisioning platform for financial institutions

From
On request
Rated
-
Full reviewWebsite
KeystoneJS logo

KeystoneJS

APIs

Powerful Node.js headless CMS framework and API platform

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only KeystoneJS has a free tier, so it costs nothing to try first.
  • Each has a real cost: Flybits its output quality depends entirely on the completeness and accuracy of the underlying bank data it is fed, so a bank with fragmented or poor-quality customer data gets correspondingly weak personalisation.; KeystoneJS database support is limited to PostgreSQL, MySQL and SQLite
  • They diverge on capability: Flybits covers Contextual decisioning engine, KeystoneJS covers REST API.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Flybits and KeystoneJS actually diverge.

Attributes where Flybits and KeystoneJS differ
AttributeFlybitsKeystoneJS
Starting priceOn requestFree
Pricing modelquoteopen-source
Free tierNoYes
PlatformsWeb, iOS, AndroidNode.js, Self-hosted
FoundedUnknown2016

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

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 Flybits

  • Contextual decisioning engine
  • Non-technical configuration
  • Agentic Banking capability
  • Customer data unification
  • Card-linked offers
  • Real-time insight delivery

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.

Flybits

  • A bank wanting to move from generic segment-based marketing to individually contextual offers and messagesnot KeystoneJS
  • A product team wanting to configure personalisation rules without needing engineering support for every changenot KeystoneJS
  • A bank wanting card-linked contextual offers tied to transaction datanot KeystoneJS
  • A financial institution exploring an agentic AI interaction layer across cards, loans and depositsnot KeystoneJS

KeystoneJS

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

Where each one falls short

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

Flybits

  • Its output quality depends entirely on the completeness and accuracy of the underlying bank data it is fed, so a bank with fragmented or poor-quality customer data gets correspondingly weak personalisation.
  • The newer Agentic Banking capability is recent enough that long-term reliability, accuracy and customer trust data at scale are still limited compared with its longer-established contextual decisioning engine.
  • Pricing is not published, requiring a licensing negotiation per institution.
  • As with Meniga, it is a white-label layer rather than a consumer-facing brand, making independent reputation and reliability harder for a prospective bank client to verify directly.
  • Expanding from a rules-based personalisation engine into agentic AI interaction is a significant scope and complexity increase, and a bank evaluating it today should confirm which capabilities are mature and in production versus newly launched.

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

Flybits

On request
  • Flybits$undefined/year
    • Pricing not published, licensed per financial institution deployment

KeystoneJS

Free
  • Open SourceFree
    • Full KeystoneJS
    • Community support

Which should you pick?

Choose Flybits if

  • You need contextual decisioning engine.
  • You work on Web, iOS, Android.
  • You also want non-technical configuration.
Flybits 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 Flybits or KeystoneJS better?
Neither clearly leads. Flybits starts at On request and KeystoneJS at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Flybits or KeystoneJS?
KeystoneJS has a free tier; the other does not. Paid plans start at On request for Flybits and Free for KeystoneJS.
Does Flybits or KeystoneJS run on more platforms?
Flybits runs on Web, iOS, Android. KeystoneJS runs on Node.js, Self-hosted.
Can I use KeystoneJS for free?
Yes. KeystoneJS has a free tier, so you can try it without paying. Flybits starts at On request.
What is Flybits best used for?
Flybits is most often used for a bank wanting to move from generic segment-based marketing to individually contextual offers and messages, a product team wanting to configure personalisation rules without needing engineering support for every change, a bank wanting card-linked contextual offers tied to transaction data, a financial institution exploring an agentic ai interaction layer across cards, loans and deposits. Of those, a bank wanting to move from generic segment-based marketing to individually contextual offers and messages and a product team wanting to configure personalisation rules without needing engineering support for every change are not what KeystoneJS is typically brought in for.
What can Flybits do that KeystoneJS cannot?
Flybits covers Contextual decisioning engine, Non-technical configuration, Agentic Banking capability, Customer data unification. KeystoneJS covers REST API, GraphQL API, Admin interface, Node.js.

Answered from the vendors’ own pages

Flybits: Does Flybits require engineering support to run campaigns?

No, it is designed so marketing and product teams can configure personalisation rules directly.

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
Flybits: What is Agentic Banking?

A newer Flybits capability introducing AI agents as an interaction layer unifying cards, loans and deposits into conversational banking experiences.

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
Flybits: Is pricing published?

No, it is licensed per financial institution and requires a quote.

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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