How much does a fintech app cost?
Fintech apps cost more than similar-looking apps because the hard parts are hidden: a correct ledger, identity checks, payment and banking partners, audit trails and the compliance each brings. The build cost is engineering hours times the rate, and on top of it come per-use fees for checks and payments and the cost of compliance work.
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What drives the build cost
- 1What the app does with money: showing balances is far simpler than moving, lending or holding it.
- 2A double-entry ledger and reconciliation, so every cent can be traced.
- 3Onboarding with KYC and, for business customers, KYB.
- 4Payment, card and bank-data integrations, each with sandbox testing and edge cases.
- 5Controls such as maker-checker approvals, audit logs and role-based access.
- 6Compliance: PCI DSS if card data is near your systems, and the rules of your partner bank or licence.
Costs that keep running
Per-use fees often matter more than the build over time: identity checks per user, payment processing per transaction, bank-data connections per account, plus hosting, monitoring and security testing. Model them per customer before you launch.
How OceanLab prices fintech builds
OceanLab prices product builds and embedded engineers either outcome-based, paid per milestone, or hourly at $30-50/hr depending on role and seniority, whichever suits the client.
We start with a clickable prototype of the money flows and screens, so the ledger, checks and partners are agreed before the production build is priced.
Check it for your case.
Common follow-up questions.
Do I need a banking licence?
Many fintechs work through a licensed partner bank or provider instead. Which route fits depends on the product and the country; get legal advice early.
Can I use a banking-as-a-service provider to cut cost?
Often, yes. It replaces a lot of build and licence work, in exchange for per-use fees and dependence on that provider. Compare the total cost over a few years.
What is the most expensive mistake?
A ledger that does not balance. Fixing money data after launch is slow and risky, so design it carefully from the start.
Related questions and guides.
- What is the difference between KYC and KYB?Question
- When do I need PCI DSS?Question
- What is DORA for fintech?Question
- AI agent vs workflow automationComparison
- RAG vs fine-tuningComparison
- GlossaryEvery term, in plain words.
- Software for bankingBanking systems, controls and regulation.
- Software for paymentsPayment systems and the compliance work they bring.
- Building KYC onboardingIdentity checks, business checks and review queues.
