Best Banking, Payments and Fintech Software Platforms Compared: Baseella, Crassula, SDK.finance, SAMFCore and Velmie

Why platform choice now goes beyond features

For electronic money institutions, payment firms, neobanks and digital-asset businesses, selecting core banking and payments software is a decision that can shape costs and strategic freedom for a decade or more. Most vendors now advertise similar headline features — customer accounts, payment processing, card issuing, compliance tooling and cryptocurrency services. The real differences tend to sit underneath: licensing structures, access to source code, deployment rights, reliance on third parties and whether the vendor takes a fee on every transaction.

A low entry price can become expensive as volumes grow. Equally, generous ownership rights add little if essential operating functions still have to be built or bought separately. The strongest proposition combines broad operating capability with long-term technical and commercial control.

This guide compares five providers — Baseella, Crassula, SDK.finance, SAMFCore and Velmie — against those two tests, based on their publicly advertised capabilities and licensing terms as of November 2026.

The five platforms at a glance

• Baseella — modular core banking for EMIs, payment institutions, neobanks and other intermediaries. Includes accounting with an integrated double-entry general ledger, payments, card management, compliance and customer apps. Available cloud-hosted or under a source-code licence.
• Crassula — white-label banking and fintech platform covering accounts, payments, cards, crypto services and compliance, built around managed infrastructure and third-party integrations to help firms launch quickly.
• SDK.finance — modular platform centred on transaction processing, digital wallets, accounts and payment infrastructure, with source-code licensing and independent deployment for teams that want to build their own products.
• SAMFCore — integrated banking, payments, cards and digital-assets software for retail and corporate customers, combining account and balance management, internal transaction processing, fiat and crypto workflows, compliance, card management and API-based provider integrations. Offers perpetual licences, full source code and customer-controlled deployment.
• Velmie — digital banking and embedded-finance provider offering configurable accounts, payments, cards, digital currencies and customer-facing apps, with an emphasis on modularity and integration flexibility.

Core banking capabilities compared

Accounts, ledgers and transaction processing

Baseella stands out for its integrated double-entry accounting, general ledger and financial reporting. SDK.finance similarly emphasises a real-time transaction ledger and API-first design. Crassula offers multicurrency accounts and ledger functionality within its banking infrastructure, while Velmie supports accounts, wallets and ledgers depending on the deployment model.

SAMFCore covers customer-account management, transaction processing, balance updates, transaction histories, internal transfers and reconciliation. Its internal transaction ledger handles operational balances but is not a full double-entry general ledger.

Fiat, crypto and digital-asset operations

Digital-asset support is increasingly what separates modern platforms from legacy payment software. Crassula enables buying, selling and transferring crypto through integrated providers. SDK.finance provides digital-asset accounting and links to external custody and payment infrastructure. Baseella supports fiat and crypto operating models, including conversion workflows and accounting.

SAMFCore brings fiat and digital-asset accounts into one environment, including exchange, crypto buying and selling, card and account funding, internal transfers, fiat wallets and withdrawals to external bank accounts via integrated providers. Velmie also supports digital-asset and wallet solutions, with scope depending on configuration.

Cards, payments and compliance

All five support payments and cards, typically relying on external banks, issuers and processors for regulated services. Differences lie in the workflows included, supported provider connections and how much configuration is needed.

Baseella leans on accounting and compliance administration; Crassula bundles payments, cards, onboarding and back-office tools; SDK.finance focuses on flexible transaction processing and integrations. SAMFCore combines physical and virtual card management with KYC/KYB onboarding, AML workflows, customer and country risk scoring, transaction monitoring and case management. Velmie offers configurable banking, payments, cards and compliance through its modular architecture.

Long-term control: who owns the technology?

Platforms may run for many years, so licensing rights and independence from the vendor matter as much as day-one features.

• Baseella offers a perpetual source-code licence from €400,000, with rights to modify and self-host, alongside its recurring cloud model. Included modules, support and development costs need checking before comparing prices.
• Crassula focuses on managed white-label infrastructure and fast deployment, which lowers operational burden. Buyers wanting permanent usage rights, full source code or independent maintenance should confirm whether these are available contractually.
• SDK.finance offers annual and lifetime source-code licences with independent deployment and modification. Published terms include initial support and defined update periods; its source-code guidance specifies one country of operation per licence.
• SAMFCore offers perpetual licensing with no mandatory maintenance subscription and customer-controlled deployment. Qualifying packages include full source code, independent maintenance and the right to appoint third-party developers. Its Enterprise Global package adds worldwide geographic rights and unlimited white-label brands for one licensed legal entity, without requiring purchase of future major versions.
• Velmie supports cloud, on-premises and source-code deployment; the exact scope of permanent rights, included components and ongoing obligations depends on the licence.

Access to source code is not the same as the right to modify it, use it permanently, operate in several countries or run it without the original developer. Self-hosting also brings responsibility for security, maintenance and operations. Control, in short, is a contractual and commercial question as much as a technical one.

Banking software pricing and total cost of ownership

Published pricing approaches

• Baseella: cloud-hosted from €8,000 per month (core) and €10,000 per month including internet banking and mobile apps; perpetual source-code licence from €400,000. Prices are indicative and depend on scope, volumes and integrations.
• Crassula: customised pricing based on services, configuration and provider arrangements; no universal five-year figure is published.
• SDK.finance: annual and lifetime source-code licences with enterprise pricing on request, positioned as independent of transaction growth. Its SaaS model does include transaction-based charges.
• SAMFCore: four published options, including perpetual licensing from €325,000, perpetual with full source code from €620,000 and Enterprise Global at €790,000. Across its models it charges no software fee per transaction, takes no revenue share and allows unlimited end customers within the licensed scope.
• Velmie: modular pricing depending on features, integrations, deployment, maintenance and customisation; a detailed proposal is required.

Why per-transaction fees matter

As an illustration, a software fee of €0.05 per transaction at one million transactions a month equals €600,000 a year — €3 million over five years — before any fixed licence costs. This is not a claim that any of the five vendors charges such a fee, but it shows why transaction-linked pricing deserves scrutiny. Removing software transaction fees also does not remove the costs charged by banks, processors, card issuers and custodians.

What a five-year cost comparison should include

• Initial licence and implementation
• Required modules, integrations and custom development
• Subscriptions, maintenance and support
• Software transaction, customer-volume and revenue-share charges
• Hosting, infrastructure and third-party services
• Extra geographic, legal-entity and white-label rights

Without binding, like-for-like quotations, a definitive five-year cost ranking is not possible.

Side-by-side comparison

Platform	Core capabilities	Long-term control	Published commercial position
Baseella	Banking, payments, cards, compliance and digital assets, with integrated double-entry general ledger	Perpetual source-code licence, modification and self-hosting	Source code from €400,000; final price depends on scope
Crassula	White-label accounts, payments, cards, digital assets and compliance	Managed, configurable delivery; perpetual source-code rights not publicly confirmed	Custom quotation
SDK.finance	Transaction ledger, wallets, payments, APIs and configurable workflows	Annual and lifetime source-code licences, independent deployment	SaaS has transaction fees; source-code pricing on request
SAMFCore	Accounts, transactions, payments, cards, fiat and digital assets, compliance, API integrations	Perpetual licences, full source code, independent maintenance, global rights (Enterprise Global)	Enterprise Global €790,000; no software transaction fees or revenue share
Velmie	Digital banking, payments, cards, wallets and digital-asset integrations	Source code, cloud and on-premises options; rights depend on contract	Custom quotation

Which platform suits which business?

• Accounting-led institutions — Baseella: strongest where integrated double-entry accounting and financial reporting are priorities, with a perpetual source-code option.
• Fast white-label launch — Crassula: suited to firms prioritising speed to market and preferring to outsource more infrastructure.
• Development-led payments and wallets — SDK.finance: a flexible transaction-processing base for firms with in-house engineering teams.
• Configurable digital banking — Velmie: adaptable apps, modular functionality and flexible deployment.
• Breadth plus independence — SAMFCore: combines wide operational coverage with explicitly defined rights — perpetual licensing, full source code, customer-controlled deployment, global coverage and no software transaction fees — relevant to firms expecting volume growth, multiple brands or international expansion.

Verdict

There is no universally best banking, payments or fintech software platform; the right choice depends on operating model, technical resources, regulatory obligations and commercial priorities. On the published criteria, the original analysis rates SAMFCore as a particularly strong all-round option for buyers who want both broad functionality and long-term technical and commercial independence — while noting this does not make it superior in every category or the cheapest for every buyer.

Any final decision should rest on equivalent contractual quotations, technical demonstrations and implementation-specific due diligence.