Softwr

APIs · head to head

Tuum vs WSO2 API Manager

Tuum logo

Tuum

APIs

Modular core banking platform from Estonia, formerly branded Modularbank

From
On request
Rated
-
Full reviewWebsite
WSO2 API Manager logo

WSO2 API Manager

APIs

Complete API management platform for designing and managing APIs

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only WSO2 API Manager has a free tier, so it costs nothing to try first.
  • Each has a real cost: Tuum it is a smaller, younger company than Mambu, so it has fewer live reference deployments and a shorter track record to evaluate risk against.; WSO2 API Manager the free open source distribution does not include a subscription to the WSO2 Update service, so continuous improvements and security patches require a paid subscription
  • They diverge on capability: Tuum covers Modular product structure, WSO2 API Manager covers API Gateway.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Tuum and WSO2 API Manager actually diverge.

Attributes where Tuum and WSO2 API Manager differ
AttributeTuumWSO2 API Manager
Starting priceOn requestFree
Pricing modelquoteopen-source
Free tierNoYes
PlatformsWeb, APIJava, Linux, Docker, Kubernetes
FoundedUnknown2005

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 Tuum

  • Modular product structure
  • Low-code integration middleware
  • Cloud-agnostic deployment
  • Multi-currency real-time accounts
  • Cards and lending modules
  • Faster migration timeline

Only in WSO2 API Manager

  • API Gateway
  • API Designer
  • Developer Portal
  • LDAP
  • Okta
  • Keycloak
  • Microservices
  • Java support

What people use each for

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

Tuum

  • A bank wanting to migrate specific banking products to the cloud within months rather than replacing its entire core at oncenot WSO2 API Manager
  • A fintech in the DACH region or Middle East wanting a European core banking vendor with regional expansion focusnot WSO2 API Manager
  • An institution wanting low-code middleware to connect new modules to an existing legacy core rather than a full rebuildnot WSO2 API Manager
  • A company researching "Modularbank" that needs to confirm it is the same company now branded Tuumnot WSO2 API Manager

WSO2 API Manager

  • Publishing, securing and rate limiting APIs behind a gatewaynot Tuum
  • Running an API developer portal with subscription key managementnot Tuum
  • Self hosting an open source API management layer on premisesnot Tuum

Where each one falls short

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

Tuum

  • It is a smaller, younger company than Mambu, so it has fewer live reference deployments and a shorter track record to evaluate risk against.
  • The 2022-era rebrand from Modularbank to Tuum means older funding records, case studies and press coverage appear under a different name, complicating due diligence for anyone unaware of the change.
  • Pricing is entirely unpublished, requiring a sales conversation to budget against competing composable core vendors.
  • Its geographic expansion into DACH and the Middle East is comparatively recent, so support depth and local regulatory expertise in those markets are less proven than in its home Baltic and Nordic base.
  • As with any core banking platform, choosing Tuum is a multi-year infrastructure commitment; switching cores after implementation is a major undertaking regardless of how modular the initial adoption was.

WSO2 API Manager

  • The free open source distribution does not include a subscription to the WSO2 Update service, so continuous improvements and security patches require a paid subscription
  • A commercial production licence is not part of the free download and comes only with a subscription
  • No subscription price is published; Basic Support and Enterprise Support both require contacting sales for a quote
  • 24x7x365 coverage requires Enterprise Support; the general query SLA is one business day
  • A Customer Success Manager is a paid optional add on covering business hours only
  • Consulting services and WSO2 Private Cloud hosting are quoted separately

Pricing, plan by plan

Tuum

On request
  • Tuum$undefined/year
    • Subscription and module-based pricing, not published
    • Custom quote required via sales

WSO2 API Manager

Free
  • CommunityFree
    • Core API management
    • Community support
  • Commercial$undefined/monthly
    • Enterprise features
    • Technical support
    • SLA

Which should you pick?

Choose Tuum if

  • You need modular product structure.
  • You work on Web, API.
  • You also want low-code integration middleware.
Tuum review

Choose WSO2 API Manager if

  • You need api gateway.
  • You want to start without paying.
  • You work on Java, Linux, Docker, Kubernetes.
  • You also want api designer.
WSO2 API Manager review

Questions people ask

Is Tuum or WSO2 API Manager better?
Neither clearly leads. Tuum starts at On request and WSO2 API Manager at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Tuum or WSO2 API Manager?
WSO2 API Manager has a free tier; the other does not. Paid plans start at On request for Tuum and Free for WSO2 API Manager.
Does Tuum or WSO2 API Manager run on more platforms?
Tuum runs on Web, API. WSO2 API Manager runs on Java, Linux, Docker, Kubernetes.
Can I use WSO2 API Manager for free?
Yes. WSO2 API Manager has a free tier, so you can try it without paying. Tuum starts at On request.
What is Tuum best used for?
Tuum is most often used for a bank wanting to migrate specific banking products to the cloud within months rather than replacing its entire core at once, a fintech in the dach region or middle east wanting a european core banking vendor with regional expansion focus, an institution wanting low-code middleware to connect new modules to an existing legacy core rather than a full rebuild, a company researching "modularbank" that needs to confirm it is the same company now branded tuum. Of those, a bank wanting to migrate specific banking products to the cloud within months rather than replacing its entire core at once and a fintech in the dach region or middle east wanting a european core banking vendor with regional expansion focus are not what WSO2 API Manager is typically brought in for.
What can Tuum do that WSO2 API Manager cannot?
Tuum covers Modular product structure, Low-code integration middleware, Cloud-agnostic deployment, Multi-currency real-time accounts. WSO2 API Manager covers API Gateway, API Designer, Developer Portal, LDAP.

Answered from the vendors’ own pages

Tuum: Is Tuum the same company as Modularbank?

Yes, Modularbank rebranded to Tuum; it is the same company and platform.

WSO2 API Manager: How is WSO2 API Manager priced?

WSO2 API Manager pricing is not published on their website. As an enterprise API management platform, pricing is custom-quoted based on deployment model and organizational requirements.

Source
Tuum: Where is it strongest geographically?

Its base is Estonia and the Nordic and Baltic region, with newer expansion into DACH and the Middle East.

WSO2 API Manager: Does WSO2 API Manager offer different pricing for on-premises versus cloud deployments?

WSO2 API Manager supports multiple deployment options including on-premises and cloud, but pricing structures for different deployment models are not publicly disclosed.

Source
Tuum: Is pricing published?

No, subscription and module pricing require a sales conversation.

WSO2 API Manager: What deployment flexibility does WSO2 API Manager provide?

WSO2 API Manager enables flexible deployment on-premises or in cloud environments, but specific pricing tiers for each deployment model require contacting WSO2 sales.

Source
WSO2 API Manager: How would I request a WSO2 API Manager pricing quote?

Organizations can request pricing quotes by contacting WSO2 sales through their website. Custom quotes depend on API volume, deployment model, and feature requirements.

Source
Share

Related pages

More on Tuum

More on WSO2 API Manager

Keep looking

Other head to heads