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APIs · head to head

Formance vs Paymentology

Formance logo

Formance

APIs

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

From
Free
Rated
-
Full reviewWebsite
Paymentology logo

Paymentology

APIs

Cloud issuer processing across emerging and developed markets

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Formance has a free tier, so it costs nothing to try first.
  • 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.; Paymentology paymentology processes but does not hold issuing licences, so every market still needs your own licence or a sponsor bank, which is usually the slowest and most expensive part of a launch.
  • They diverge on capability: Formance covers Double-entry ledger, Paymentology covers Global issuer processing.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Formance and Paymentology actually diverge.

Attributes where Formance and Paymentology differ
AttributeFormancePaymentology
Starting priceFreeOn request
Pricing modelOpen source, no licence feequote
Free tierYesNo
PlatformsLinux, Docker, Kubernetes, Web, APIWeb, API

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 Formance

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

Only in Paymentology

  • Global issuer processing
  • Real time transaction data
  • Virtual and physical issuance
  • Tokenisation
  • Multi currency and multi product
  • Card controls
  • Programme management tools
  • Fraud and risk integration

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 Paymentology
  • A fintech whose homegrown balances table produced numbers finance could not reconcile and now needs proper double-entry before an auditnot Paymentology
  • A payments team that wants one normalised model across several PSPs so reconciliation is not written separately for eachnot Paymentology
  • A company that wants its ledger under a licence it can keep running even if the vendor disappearsnot Paymentology

Paymentology

  • A neobank launching cards in an African or South East Asian market where hosted United States processors have no certificationnot Formance
  • A mobile money operator adding a card product on top of an existing wallet basenot Formance
  • A bank consolidating several regional card processors onto one platformnot Formance
  • A fintech expanding an existing card programme into the Gulf without re platformingnot 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.

Paymentology

  • Paymentology processes but does not hold issuing licences, so every market still needs your own licence or a sponsor bank, which is usually the slowest and most expensive part of a launch.
  • Fees include per active card charges and monthly minimums, so a portfolio with many dormant cards pays for plastic that generates no interchange.
  • Certification, settlement and scheme relationships differ by country, so a multi market rollout is a series of separate projects rather than one integration.
  • As a processor it sits between your product and the networks, meaning outages and scheme mandate changes reach your cardholders through a party you do not control.
  • Documentation and developer self service are weaker than the United States hosted processors, so early integration depends heavily on Paymentology implementation staff.

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

Paymentology

On request
  • Paymentology processing$undefined/year
    • Quoted per programme and per market
    • Typically per transaction and per active card fees plus a monthly minimum
    • Issuing licence or sponsor bank required in each market and not provided

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 Paymentology if

  • You need global issuer processing.
  • You work on Web, API.
  • You also want real time transaction data.
Paymentology review

Questions people ask

Is Formance or Paymentology better?
Neither clearly leads. Formance starts at Free and Paymentology at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Formance or Paymentology?
Formance has a free tier; the other does not. Paid plans start at Free for Formance and On request for Paymentology.
Does Formance or Paymentology run on more platforms?
Formance runs on Linux, Docker, Kubernetes, Web, API. Paymentology runs on Web, API.
Can I use Formance for free?
Yes. Formance has a free tier, so you can try it without paying. Paymentology starts at On request.
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 Paymentology is typically brought in for.
What can Formance do that Paymentology cannot?
Formance covers Double-entry ledger, Numscript transaction DSL, Multi-currency, Payments connectivity. Paymentology covers Global issuer processing, Real time transaction data, Virtual and physical issuance, Tokenisation.

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.

Paymentology: Does Paymentology provide the BIN and licence?

No. You need your own issuing licence or a sponsor bank in each market; Paymentology processes the transactions.

Formance: Does Formance move money?

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

Paymentology: What is the actual pricing model?

Per transaction and per active card, with a monthly minimum. Dormant cards still cost, so model your activation rate.

Formance: What does the enterprise version cost?

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

Paymentology: Why choose it over a United States issuer processor?

Network certification and live programmes in markets where those processors do not operate, which decides feasibility rather than preference.

Formance: Do I have to use Numscript?

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

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