Is curl or Tuum better?

Neither clearly leads. curl starts at Free and Tuum at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, curl or Tuum?

curl has a free tier; the other does not. Paid plans start at Free for curl and On request for Tuum.

Does curl or Tuum run on more platforms?

curl runs on Linux, MacOS, Windows, Unix, Mobile. Tuum runs on Web, API.

Can I use curl for free?

Yes. curl has a free tier, so you can try it without paying. Tuum starts at On request.

What is curl best used for?

curl is most often used for api development, api gateway, api testing, api documentation. Of those, api development and api gateway are not what Tuum is typically brought in for.

What can curl do that Tuum cannot?

curl covers HTTP/HTTPS, FTP, Multiple protocols, Universal compatibility. Tuum covers Modular product structure, Low-code integration middleware, Cloud-agnostic deployment, Multi-currency real-time accounts.

APIs · head to head

curl vs Tuum

curl

APIs

Command-line tool for transferring data using URLs with wide protocol support

From: Free
Rated: -

Full review Website

Tuum

APIs

Modular core banking platform from Estonia, formerly branded Modularbank

From: On request
Rated: -

Full review Website

The short version

Only curl has a free tier, so it costs nothing to try first.
Each has a real cost: curl open-source with no vendor pricing: curl is free and open-source under GPL 3.0; no subscription or licensing costs apply; 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.
They diverge on capability: curl covers HTTP/HTTPS, Tuum covers Modular product structure.
Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which curl and Tuum actually diverge.

Attributes where curl and Tuum differ
Attribute	curl	Tuum
Starting price	Free	On request
Pricing model	open-source	quote
Free tier	Yes	No
Platforms	Linux, MacOS, Windows, Unix, Mobile	Web, API
Founded	1997	Unknown

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 curl

HTTP/HTTPS
FTP
Multiple protocols
Universal compatibility
Scripting tools
Linux support
MacOS support
Windows support

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

What people use each for

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

curl

API Developmentnot Tuum
API Gatewaynot Tuum
API Testingnot Tuum
API Documentationnot Tuum
Microservicesnot Tuum

Tuum

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

Where each one falls short

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

curl

Open-source with no vendor pricing: curl is free and open-source under GPL 3.0; no subscription or licensing costs apply
Commercial support costs hidden: site references 'commercial support available' but pricing is not detailed or accessible from homepage
No SaaS model: curl is a command-line tool and library; costs are limited to optional commercial support contracts (pricing unknown)
Self-support burden: free software means customers rely on community forums or undisclosed commercial support pricing

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.

Pricing, plan by plan

curl

Free

Open SourceFree
- Full curl functionality
- Community support

Tuum

On request

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

Which should you pick?

Choose curl if

You need http/https.
You want to start without paying.
You work on Linux, MacOS, Windows, Unix, Mobile.
You also want ftp.

curl review

Choose Tuum if

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

Tuum review

Questions people ask

Is curl or Tuum better?: Neither clearly leads. curl starts at Free and Tuum at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, curl or Tuum?: curl has a free tier; the other does not. Paid plans start at Free for curl and On request for Tuum.
Does curl or Tuum run on more platforms?: curl runs on Linux, MacOS, Windows, Unix, Mobile. Tuum runs on Web, API.
Can I use curl for free?: Yes. curl has a free tier, so you can try it without paying. Tuum starts at On request.
What is curl best used for?: curl is most often used for api development, api gateway, api testing, api documentation. Of those, api development and api gateway are not what Tuum is typically brought in for.
What can curl do that Tuum cannot?: curl covers HTTP/HTTPS, FTP, Multiple protocols, Universal compatibility. Tuum covers Modular product structure, Low-code integration middleware, Cloud-agnostic deployment, Multi-currency real-time accounts.

Answered from the vendors’ own pages

curl: How much does curl cost?

curl is free and open-source software under the GPL 3.0 license. There is no cost to download, use, or modify the software.

Source

Tuum: Is Tuum the same company as Modularbank?

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

curl: Is commercial support available for curl?

Yes. The curl website references 'commercial support available,' but pricing and details are not disclosed on the homepage and require visiting the support page.

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.

curl: Can I sponsor curl financially?

Yes. The curl website offers an option to 'Sponsor curl financially.' Visitors can donate to support curl development, but the donation link must be accessed through the site's support section.

Source

Tuum: Is pricing published?

No, subscription and module pricing require a sales conversation.

curl vs Tuum

curl

Tuum

The short version

Where they differ

What each one covers

Only in curl

Only in Tuum

What people use each for

curl

Tuum

Where each one falls short

curl

Tuum

Pricing, plan by plan

curl

Tuum

Which should you pick?

Choose curl if

Choose Tuum if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on curl

More on Tuum

Keep looking

Other head to heads