Is Formance or SST better?

Neither clearly leads. Formance starts at Free and SST at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.

Which is cheaper, Formance or SST?

Formance starts at Free and SST at Free.

Does Formance or SST run on more platforms?

Formance runs on Linux, Docker, Kubernetes, Web, API. SST runs on AWS, Cloudflare, Node.js.

Can I use Formance for free?

Both have a free tier, so you can try either at no cost before committing.

What is Formance best used for?

Formance is most often used for a marketplace splitting a single customer payment between seller, platform fee and tax that needs the split to be atomic and auditable, a fintech whose homegrown balances table produced numbers finance could not reconcile and now needs proper double-entry before an audit, a payments team that wants one normalised model across several psps so reconciliation is not written separately for each, a company that wants its ledger under a licence it can keep running even if the vendor disappears. Of those, a marketplace splitting a single customer payment between seller, platform fee and tax that needs the split to be atomic and auditable and a fintech whose homegrown balances table produced numbers finance could not reconcile and now needs proper double-entry before an audit are not what SST is typically brought in for.

What can Formance do that SST cannot?

Formance covers Double-entry ledger, Numscript transaction DSL, Multi-currency, Payments connectivity. SST covers Single config file, Resource linking, Local development, Multi-cloud support.

APIs · head to head

Formance vs SST

Formance

APIs

Open source double-entry ledger and payment orchestration for money-moving software

From: Free
Rated: -

Full review Website

SST

Cloud

Build full-stack apps on your own infrastructure

From: Free
Rated: -

Full review Website

The short version

Each has a real cost: Formance formance holds no money and provides no regulatory cover, so it must be paired with a payments provider or bank, and buyers occasionally mistake a ledger for a treasury system and discover the gap late.; SST primarily optimized for AWS with Cloudflare support
They diverge on capability: Formance covers Double-entry ledger, SST covers Single config file.
Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Formance and SST actually diverge.

Attributes where Formance and SST differ
Attribute	Formance	SST
Pricing model	Open source, no licence fee	Unknown
Platforms	Linux, Docker, Kubernetes, Web, API	AWS, Cloudflare, Node.js
Category	APIs	Cloud

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 Formance

Double-entry ledger
Numscript transaction DSL
Multi-currency
Payments connectivity
Reconciliation
Self-hosted deployment
Cloud offering
API and SDKs

Only in SST

Single config file
Resource linking
Local development
Multi-cloud support
Multiple deployment stages
VPC tunneling

What people use each for

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

Formance

A marketplace splitting a single customer payment between seller, platform fee and tax that needs the split to be atomic and auditablenot SST
A fintech whose homegrown balances table produced numbers finance could not reconcile and now needs proper double-entry before an auditnot SST
A payments team that wants one normalised model across several PSPs so reconciliation is not written separately for eachnot SST
A company that wants its ledger under a licence it can keep running even if the vendor disappearsnot SST

SST

Deploying Next.js frontends with serverless backendsnot Formance
Managing databases and storage alongside application codenot Formance
Creating staging environments for feature testingnot Formance

Where each one falls short

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

Formance

Formance holds no money and provides no regulatory cover, so it must be paired with a payments provider or bank, and buyers occasionally mistake a ledger for a treasury system and discover the gap late.
Numscript is a domain-specific language your team must learn, and while it makes complex splits expressible it also means transaction logic sits outside the languages your engineers already debug well.
Self-hosting a ledger that must never lose or duplicate a transaction is a serious operational commitment covering backups, upgrades and Postgres tuning, which is real cost the zero licence fee hides.
Enterprise pricing is not published, so the difference between the free path and the supported path cannot be evaluated without a sales conversation.
The company is much smaller than the incumbent alternatives, and while the MIT licence protects the code it does not protect the roadmap, so features on the hosted side may arrive slowly or change direction.

SST

Primarily optimized for AWS with Cloudflare support
Learning curve for developers unfamiliar with infrastructure concepts
Limited documentation for some advanced use cases

Pricing, plan by plan

Formance

Free

Open SourceFree
- MIT licensed core ledger
- Numscript transaction DSL
- Multi-currency tracking
Enterprise$undefined/year
- Managed or private deployment
- Payments connectivity and reconciliation
- Support with response commitments

SST

Free

No published plan breakdown. See the SST review.

Which should you pick?

Choose Formance if

You need double-entry ledger.
You want to start without paying.
You work on Linux, Docker, Kubernetes, Web, API.
You also want numscript transaction dsl.

Formance review

Choose SST if

You need single config file.
You want to start without paying.
You work on AWS, Cloudflare, Node.js.
You also want resource linking.

SST review

Questions people ask

Is Formance or SST better?: Neither clearly leads. Formance starts at Free and SST at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Formance or SST?: Formance starts at Free and SST at Free.
Does Formance or SST run on more platforms?: Formance runs on Linux, Docker, Kubernetes, Web, API. SST runs on AWS, Cloudflare, Node.js.
Can I use Formance for free?: Both have a free tier, so you can try either at no cost before committing.
What is Formance best used for?: Formance is most often used for a marketplace splitting a single customer payment between seller, platform fee and tax that needs the split to be atomic and auditable, a fintech whose homegrown balances table produced numbers finance could not reconcile and now needs proper double-entry before an audit, a payments team that wants one normalised model across several psps so reconciliation is not written separately for each, a company that wants its ledger under a licence it can keep running even if the vendor disappears. Of those, a marketplace splitting a single customer payment between seller, platform fee and tax that needs the split to be atomic and auditable and a fintech whose homegrown balances table produced numbers finance could not reconcile and now needs proper double-entry before an audit are not what SST is typically brought in for.
What can Formance do that SST cannot?: Formance covers Double-entry ledger, Numscript transaction DSL, Multi-currency, Payments connectivity. SST covers Single config file, Resource linking, Local development, Multi-cloud support.

Answered from the vendors’ own pages

Formance: Is Formance really open source?

Yes. The core ledger is MIT licensed with full source access and no deployment restrictions.

SST: Is SST free?

Yes, SST is open source and free. You only pay for cloud resources from AWS and other providers.

Source

Formance: Does Formance move money?

No. It records and orchestrates movements; the actual payments happen at a PSP or bank you connect.

SST: What cloud providers does SST support?

SST supports over 150 providers through built-in AWS and Cloudflare components, plus Pulumi and Terraform providers.

Source

Formance: What does the enterprise version cost?

Not published. It is an annual subscription quoted per customer.

Formance: Do I have to use Numscript?

Yes for anything beyond the simplest transfers. It is how multi-party transactions are expressed atomically.

Formance vs SST

Formance

SST

The short version

Where they differ

What each one covers

Only in Formance

Only in SST

What people use each for

Formance

SST

Where each one falls short

Formance

SST

Pricing, plan by plan

Formance

SST

Which should you pick?

Choose Formance if

Choose SST if

Questions people ask

Answered from the vendors’ own pages

Related pages

More on Formance

More on SST

Keep looking

Other head to heads