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APIs · head to head

Temenos Transact vs TrueLayer

Temenos Transact logo

Temenos Transact

APIs

Established core banking system used by banks in over a hundred countries

From
On request
Rated
-
Full reviewWebsite
TrueLayer logo

TrueLayer

APIs

Open banking payments and data across the UK and Europe, with the largest share of UK variable recurring payments

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Temenos Transact the codebase originates in the 1990s, so banks on older releases face major upgrade programmes to reach current versions, and many defer them for years.; TrueLayer variable recurring payments, the strongest reason to choose TrueLayer, is a UK construct, and European businesses expecting the same capability in their market will not get it on the same timetable.
  • They diverge on capability: Temenos Transact covers Country model banks, TrueLayer covers Pay by bank.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Temenos Transact and TrueLayer actually diverge.

Attributes where Temenos Transact and TrueLayer differ
AttributeTemenos TransactTrueLayer
PlatformsWeb, Linux, Windows, REST APIWeb, iOS, Android

Identical on both: starting price (On request), pricing model (quote), free tier (No), 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 Temenos Transact

  • Country model banks
  • Multi-product core
  • Payments processing
  • API layer
  • Cloud deployment
  • Accounting engine

Only in TrueLayer

  • Pay by bank
  • Variable recurring payments
  • Payouts and refunds
  • Account information
  • Account name verification
  • Signup and KYC support
  • Multi-country coverage
  • Hosted payment page

What people use each for

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

Temenos Transact

  • A bank in an emerging market needing local regulatory compliance without building it from scratchnot TrueLayer
  • An institution running Islamic banking products alongside conventional ones on one corenot TrueLayer
  • A bank that needs a large pool of experienced implementation consultants to de-risk a migrationnot TrueLayer
  • A group standardising subsidiaries in several countries onto one core banking systemnot TrueLayer

TrueLayer

  • A UK subscription or top-up business that wants card-like recurring collection over bank rails using variable recurring paymentsnot Temenos Transact
  • A trading or crypto platform funding accounts instantly by bank transfer where card deposits carry chargeback risknot Temenos Transact
  • A marketplace paying sellers out to verified bank accounts with name checking to reduce misdirected paymentsnot Temenos Transact
  • A lender verifying income and affordability from bank transaction data rather than uploaded statementsnot Temenos Transact

Where each one falls short

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

Temenos Transact

  • The codebase originates in the 1990s, so banks on older releases face major upgrade programmes to reach current versions, and many defer them for years.
  • Total cost is dominated by implementation partner fees rather than licence, and those programmes routinely overrun their original estimates.
  • Product changes that cloud-native cores treat as configuration can require development work and a release cycle, which slows time to market for new products.
  • Heavy customisation is common and it makes every subsequent upgrade harder, creating a compounding cost that banks feel a decade after go-live.
  • Temenos has repeatedly restructured its product line and naming, so buyers must check carefully which components a proposal actually includes and which are separately licensed.

TrueLayer

  • Variable recurring payments, the strongest reason to choose TrueLayer, is a UK construct, and European businesses expecting the same capability in their market will not get it on the same timetable.
  • Payment conversion varies substantially by bank, and a bank with a slow or broken authentication journey drags results down regardless of vendor, so aggregate coverage numbers say little about your actual mix.
  • Pay by bank has no chargeback mechanism, which merchants like until a customer disputes a purchase and finds no scheme protection, making it a poor fit for categories where buyers expect card style recourse.
  • Pricing is unpublished and varies by market and product, so multi-country merchants cannot model cost without a full sales engagement and often find rates differ significantly between countries.
  • Open banking authentication requires the customer to leave the checkout and authorise in their banking app, and that redirect remains the largest source of drop-off compared with a stored card.

Pricing, plan by plan

Temenos Transact

On request
  • Temenos Transact$undefined/year
    • Perpetual or subscription licence scaled by assets, accounts or users
    • Annual maintenance typically a percentage of licence value
    • Implementation delivered by partners and charged separately

TrueLayer

On request
  • TrueLayer Payments and Data$undefined/year
    • Per-payment fees quoted by volume, market and product
    • Separate commercial terms for payment initiation, VRP and account information
    • Platform and minimum commitment terms negotiated per contract

Which should you pick?

Choose Temenos Transact if

  • You need country model banks.
  • You work on Web, Linux, Windows, REST API.
  • You also want multi-product core.
Temenos Transact review

Choose TrueLayer if

  • You need pay by bank.
  • You work on Web, iOS, Android.
  • You also want variable recurring payments.
TrueLayer review

Questions people ask

Is Temenos Transact or TrueLayer better?
Neither clearly leads. Temenos Transact starts at On request and TrueLayer at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Temenos Transact or TrueLayer?
Temenos Transact starts at On request and TrueLayer at On request.
Does Temenos Transact or TrueLayer run on more platforms?
Temenos Transact runs on Web, Linux, Windows, REST API. TrueLayer runs on Web, iOS, Android.
What is Temenos Transact best used for?
Temenos Transact is most often used for a bank in an emerging market needing local regulatory compliance without building it from scratch, an institution running islamic banking products alongside conventional ones on one core, a bank that needs a large pool of experienced implementation consultants to de-risk a migration, a group standardising subsidiaries in several countries onto one core banking system. Of those, a bank in an emerging market needing local regulatory compliance without building it from scratch and an institution running islamic banking products alongside conventional ones on one core are not what TrueLayer is typically brought in for.
What can Temenos Transact do that TrueLayer cannot?
Temenos Transact covers Country model banks, Multi-product core, Payments processing, API layer. TrueLayer covers Pay by bank, Variable recurring payments, Payouts and refunds, Account information.

Answered from the vendors’ own pages

Temenos Transact: Is Transact the same as T24?

Yes. T24 was renamed Temenos Transact; older installations and much of the consultant population still use the T24 name.

TrueLayer: Is VRP available outside the UK?

No. Variable recurring payments are a UK capability. EU adoption is on a slower path, with UK commercial VRP expanding into ecommerce during 2026.

Temenos Transact: Can it run in the cloud?

Yes, it is offered on public cloud, though many existing installations remain on-premises and moving them is a project.

TrueLayer: What does TrueLayer cost?

Not published. Per-payment fees are quoted by volume, market and product, usually with a platform component and a minimum commitment.

Temenos Transact: What drives the cost?

Licence scaled by size, annual maintenance as a percentage of licence, and implementation partner fees that usually exceed the software cost.

TrueLayer: Are there chargebacks on pay by bank?

No. Bank transfers have no card scheme chargeback mechanism, which removes that cost but also removes buyer recourse, so it suits some categories and not others.

TrueLayer: Which countries are covered?

The UK plus a substantial set of European markets under PSD2, though bank-level coverage and conversion vary by country and should be checked for your specific mix.

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