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APIs · head to head

Bud Financial vs Solaris

Bud Financial logo

Bud Financial

APIs

Transaction enrichment and customer intelligence for banks, built on UK open banking data

From
On request
Rated
-
Full reviewWebsite
Solaris logo

Solaris

APIs

German banking as a service with a full banking licence and a live regulatory problem

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Bud Financial it is an enrichment and intelligence layer, not connectivity, so most buyers also pay an aggregator and the total cost of the open banking stack is higher than the Bud contract suggests.; Solaris baFin appointed a special representative in 2022 and extended the mandate in July 2024, so a partner is joining a bank under active supervisory monitoring, with slower approvals and heavier compliance demands as a direct consequence.
  • They diverge on capability: Bud Financial covers Transaction enrichment, Solaris covers German banking licence.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Bud Financial and Solaris actually diverge.

Attributes where Bud Financial and Solaris differ
AttributeBud FinancialSolaris
PlatformsWebWeb, API

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 Bud Financial

  • Transaction enrichment
  • Recurring payment detection
  • Income and affordability
  • Drive customer intelligence
  • Engage
  • Open banking connectivity
  • Segmentation and next best action
  • Data model consistency

Only in Solaris

  • German banking licence
  • IBAN accounts
  • Card issuing
  • Lending as a service
  • Digital assets and custody
  • SEPA payments
  • KYC and onboarding
  • Deposit protection

What people use each for

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

Bud Financial

  • A bank whose transaction feed is unreadable to its own analytics team and which needs merchant and category resolution before any personalisation is possiblenot Solaris
  • A lender running affordability assessments from bank data that needs income and committed spend classified consistently across institutionsnot Solaris
  • A banking application adding money management features where users expect recognisable merchant names and logos rather than raw card descriptorsnot Solaris
  • An institution trying to identify customers in financial difficulty early from changes in recurring commitments and income patternsnot Solaris

Solaris

  • A retailer or platform launching a German current account or card product without applying for its own licencenot Bud Financial
  • A fintech that needs deposit taking and lending, which an e-money licence cannot providenot Bud Financial
  • A European business needing German IBANs because customers reject foreign IBANs for salary and direct debitnot Bud Financial
  • A company requiring German statutory deposit protection on customer balances as a product claimnot Bud Financial

Where each one falls short

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

Bud Financial

  • It is an enrichment and intelligence layer, not connectivity, so most buyers also pay an aggregator and the total cost of the open banking stack is higher than the Bud contract suggests.
  • Categorisation accuracy is market specific, and merchant coverage tuned for the UK does not transfer cleanly to other countries, so non-UK buyers should insist on accuracy testing against their own data.
  • Sending complete customer transaction histories to a third party triggers a data protection and vendor risk review at any bank, and that process routinely takes longer than the technical integration itself.
  • Pricing is unpublished and blends a committed fee with usage, so an institution whose enriched volume grows faster than the value it extracts can find the contract repricing against it at renewal.
  • The product set spans enrichment, decisioning, staff analytics and consumer features, which means a buyer wanting only enrichment may be steered towards a broader platform commitment than the problem requires.

Solaris

  • BaFin appointed a special representative in 2022 and extended the mandate in July 2024, so a partner is joining a bank under active supervisory monitoring, with slower approvals and heavier compliance demands as a direct consequence.
  • BaFin fined Solaris EUR 6.5 million in March 2024 for systematically late suspicious activity reports and EUR 500,000 for breaching large exposure limits between January 2022 and March 2024, which is a track record a partner inherits reputationally.
  • Solaris has previously needed BaFin approval before onboarding new corporate clients, which can turn a commercial decision to launch into a regulatory timetable outside your control.
  • The 2024 restructuring involved job cuts and the closure of parts of a business unit, so product lines a partner depends on may not have the engineering behind them that the sales process implies.
  • SBI Holdings acquired majority control in 2025, so strategic direction now sits with a Japanese financial group whose priorities for the European business may differ from the roadmap you were sold.

Pricing, plan by plan

Bud Financial

On request
  • Bud Platform$undefined/year
    • Recurring committed fee plus usage-based charges, quoted
    • Priced by product mix across Enrich, Assess, Drive and Engage
    • Volume-based pricing on enriched transactions

Solaris

On request
  • Solaris banking as a service$undefined/year
    • Quoted per partner, typically setup fee plus monthly platform fee
    • Per account, per card and per transaction charges on top
    • Interchange sharing arrangements negotiated per programme

Which should you pick?

Choose Bud Financial if

  • You need transaction enrichment.
  • You also want recurring payment detection.
Bud Financial review

Choose Solaris if

  • You need german banking licence.
  • You work on Web, API.
  • You also want iban accounts.
Solaris review

Questions people ask

Is Bud Financial or Solaris better?
Neither clearly leads. Bud Financial starts at On request and Solaris at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Bud Financial or Solaris?
Bud Financial starts at On request and Solaris at On request.
Does Bud Financial or Solaris run on more platforms?
Bud Financial runs on Web. Solaris runs on Web, API.
What is Bud Financial best used for?
Bud Financial is most often used for a bank whose transaction feed is unreadable to its own analytics team and which needs merchant and category resolution before any personalisation is possible, a lender running affordability assessments from bank data that needs income and committed spend classified consistently across institutions, a banking application adding money management features where users expect recognisable merchant names and logos rather than raw card descriptors, an institution trying to identify customers in financial difficulty early from changes in recurring commitments and income patterns. Of those, a bank whose transaction feed is unreadable to its own analytics team and which needs merchant and category resolution before any personalisation is possible and a lender running affordability assessments from bank data that needs income and committed spend classified consistently across institutions are not what Solaris is typically brought in for.
What can Bud Financial do that Solaris cannot?
Bud Financial covers Transaction enrichment, Recurring payment detection, Income and affordability, Drive customer intelligence. Solaris covers German banking licence, IBAN accounts, Card issuing, Lending as a service.

Answered from the vendors’ own pages

Bud Financial: Does Bud provide open banking connections?

It can, but its differentiator is enrichment of transaction data. Many customers already have the data and buy Bud to make it usable.

Solaris: Does Solaris have a real banking licence?

Yes. Solaris SE is a German credit institution, which is why it can offer deposits and lending, unlike e-money based competitors.

Bud Financial: Is it UK only?

It is UK founded and its merchant coverage is strongest there, with expansion into the US. Accuracy outside the UK should be tested on your own data.

Solaris: Is the BaFin action still live?

The special representative appointed in 2022 had the mandate extended in July 2024, and fines were issued in March 2024. Treat supervisory oversight as an active condition in your diligence.

Bud Financial: What does it cost?

Not published. Typically a recurring committed fee plus usage-based charges, priced by product mix and enriched transaction volume.

Solaris: Who owns Solaris now?

SBI Holdings of Japan agreed in December 2024 and January 2025 to take a majority stake of over seventy per cent for around EUR 100 million.

Bud Financial: Why not build categorisation in house?

Because it is not a one-off build. Merchant naming changes continuously and an in-house model degrades unless someone maintains it permanently, which is the cost most institutions underestimate.

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