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APIs · head to head

Spring Cloud Gateway vs Unit

Spring Cloud Gateway logo

Spring Cloud Gateway

APIs

API gateway built on Project Reactor for building microservices

From
Free
Rated
-
Full reviewWebsite
Unit logo

Unit

APIs

Banking as a service platform for embedding deposit accounts, cards and payments, with a sponsor bank behind it

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Spring Cloud Gateway has a free tier, so it costs nothing to try first.
  • Each has a real cost: Spring Cloud Gateway released under the Apache 2.0 license, free and open source with no commercial tier; Unit your product depends on a sponsor bank you do not contract with directly, and 2024 showed what that means: Thread Bank received an FDIC enforcement action naming its banking as a service programmes and Blue Ridge Bank went under an OCC consent order and offboarded fintech partners.
  • They diverge on capability: Spring Cloud Gateway covers Routing, Unit covers Deposit accounts.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Spring Cloud Gateway and Unit actually diverge.

Attributes where Spring Cloud Gateway and Unit differ
AttributeSpring Cloud GatewayUnit
Starting priceFreeOn request
Pricing modelopen-sourcequote
Free tierYesNo
PlatformsJava, Spring BootWeb, iOS, Android
Founded1998Unknown

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 Spring Cloud Gateway

  • Routing
  • Path Rewriting
  • Circuit Breaker
  • Spring Boot
  • Spring Security
  • Spring Cloud
  • Java support
  • Spring Boot support

Only in Unit

  • Deposit accounts
  • Card issuing
  • Payments
  • White label components
  • Compliance operations
  • Lending
  • Programme reporting
  • Sandbox

What people use each for

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

Spring Cloud Gateway

  • API Developmentnot Unit
  • API Gatewaynot Unit
  • API Testingnot Unit
  • API Documentationnot Unit
  • Microservicesnot Unit

Unit

  • A vertical SaaS platform for contractors that wants to hold customer funds and issue expense cards without pursuing a charternot Spring Cloud Gateway
  • A payroll or benefits platform embedding accounts so employees can be paid ahead of schedulenot Spring Cloud Gateway
  • A marketplace that wants seller balances to sit in real accounts under its own brand rather than as ledger entries at a processornot Spring Cloud Gateway
  • A company that needs interchange revenue from a card programme to make the unit economics of its core product worknot Spring Cloud Gateway

Where each one falls short

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

Spring Cloud Gateway

  • Released under the Apache 2.0 license, free and open source with no commercial tier

Unit

  • Your product depends on a sponsor bank you do not contract with directly, and 2024 showed what that means: Thread Bank received an FDIC enforcement action naming its banking as a service programmes and Blue Ridge Bank went under an OCC consent order and offboarded fintech partners.
  • Programme approval by the bank is a separate gate from signing with Unit, and it can add months and impose product restrictions that were not visible during the commercial conversation.
  • Compliance obligations are shared but the operational load lands on you, and platforms consistently underestimate the staffing needed for disputes, escalations and the bank ongoing oversight requests.
  • Pricing is unpublished and blends platform fees, per-account and per-transaction charges and interchange sharing, which makes it hard to model unit economics before you have volume and easy to be surprised by the minimum.
  • Migrating a live deposit programme to a different provider or bank is extremely disruptive because it involves moving customer accounts and card credentials, so switching costs are far higher than for ordinary software.

Pricing, plan by plan

Spring Cloud Gateway

Free
  • Open SourceFree
    • Core Spring Cloud Gateway
    • Community support

Unit

On request
  • Unit Banking as a Service$undefined/year
    • Platform fee plus per-account and per-transaction charges, quoted
    • Interchange sharing arrangements negotiated per programme
    • Minimum commitment typical

Which should you pick?

Choose Spring Cloud Gateway if

  • You need routing.
  • You want to start without paying.
  • You work on Java, Spring Boot.
  • You also want path rewriting.
Spring Cloud Gateway review

Choose Unit if

  • You need deposit accounts.
  • You work on Web, iOS, Android.
  • You also want card issuing.
Unit review

Questions people ask

Is Spring Cloud Gateway or Unit better?
Neither clearly leads. Spring Cloud Gateway starts at Free and Unit at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Spring Cloud Gateway or Unit?
Spring Cloud Gateway has a free tier; the other does not. Paid plans start at Free for Spring Cloud Gateway and On request for Unit.
Does Spring Cloud Gateway or Unit run on more platforms?
Spring Cloud Gateway runs on Java, Spring Boot. Unit runs on Web, iOS, Android.
Can I use Spring Cloud Gateway for free?
Yes. Spring Cloud Gateway has a free tier, so you can try it without paying. Unit starts at On request.
What is Spring Cloud Gateway best used for?
Spring Cloud Gateway is most often used for api development, api gateway, api testing, api documentation. Of those, api development and api gateway are not what Unit is typically brought in for.
What can Spring Cloud Gateway do that Unit cannot?
Spring Cloud Gateway covers Routing, Path Rewriting, Circuit Breaker, Spring Boot. Unit covers Deposit accounts, Card issuing, Payments, White label components.

Answered from the vendors’ own pages

Spring Cloud Gateway: Is Spring Cloud Gateway free?

Yes, Spring Cloud Gateway is free and open-source software. It is part of the Spring ecosystem and available through GitHub repositories with open-source dependencies like spring-cloud-starter-gateway-server-webflux and spring-cloud-starter-gateway-server-webmvc.

Source
Unit: Who actually holds the money?

A chartered partner bank, not Unit. Deposits sit at the sponsor bank and FDIC insurance flows from that bank, so its condition is your condition.

Spring Cloud Gateway: What enterprise support is available for Spring Cloud Gateway?

Tanzu Spring provides optional enterprise support including Day 0 access to security patches for organizations requiring guaranteed support, but specific pricing is not published on the Spring Cloud Gateway project page.

Source
Unit: What happened with Unit sponsor banks in 2024?

Thread Bank received an FDIC enforcement action that explicitly named its banking as a service and lending as a service programmes, and Blue Ridge Bank was under an OCC consent order from January 2024 and offboarded fintech partners. Blue Ridge exited the order in late 2025.

Unit: What does Unit cost?

Not published. Expect a platform fee, per-account and per-transaction charges, an interchange share and a minimum commitment.

Unit: Do we need our own compliance team?

Yes. Unit supplies tooling and the bank sets the rules, but disputes, escalations and evidence for bank oversight require named people on your side.

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