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Custom FinTech Software Development

Primocys is a FinTech software development company building custom mobile apps, web platforms, backend systems, financial workflows, integrations, and AI-powered features—designed for secure, scalable money movement and reliable digital experiences.

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FinTech Software Development, Beyond the UI

A customer sees a balance, payment, transfer, or loan status. Behind it, the platform may validate identity, enforce rules, connect external services, record transactions, and support operations. Effective financial software development connects these workflows into one experience.

Make Financial Actions Understandable

Design mobile and web journeys around clear amounts, confirmations, status, history and next steps so users know what happened and what happens next.

Keep Money Workflows Consistent

Model transactions, accounts, contributions, payouts, repayments or other financial states in the backend instead of relying on interface logic alone.

Give Teams Visibility & Control

Administrative tools for users, transactions, approvals, exceptions, support, risk review, reconciliation and product operations.

Built for Complex FinTech Workflows

Real engineering experience across FinTech apps, financial platforms, payment workflows, integrations and connected systems—from customer experience to backend operations.

Founded in

2018

Years of product engineering across mobile, web, SaaS and backend systems help us build FinTech software around real financial workflows.

FinTech Platform Experience

We build connected financial products spanning customer experiences, financial workflows, backend systems and operational platforms—not isolated screens.

ChatLivo Logo

ChatLivo

Business Communication Platform

ChatLivo UI design

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EmoTales

AI Stories & Learning Companion

EmoTales app mockups

Full-Stack FinTech Delivery

One team across mobile, web, backend, APIs, integrations, cloud and deployment—keeping financial workflows connected from customer experience to operations.

Financial Apps
Customer Portals
Backend
Financial APIs
Transactions
Integrations
Cloud
DevOps

Project-Based FinTech Delivery

Every project moves from workflow discovery and architecture to development, integration, testing and deployment with clear scope and practical milestones.

Proven FinTech Product Delivery

1,200+ products delivered for 650+ clients across 30+ countries, backed by 8+ years of experience building scalable financial and digital products.

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1200+
Products Delivered — Mobile, web, SaaS and software products
650+
Clients Served — Across multiple industries and markets
30+
Countries — Global project delivery
8+
Years Building Enterprise-Grade Systems
30+
Core Team Members — Product, design and software engineering expertise

Complete FinTech Software Development

From mobile apps and web platforms to backend systems, APIs and financial operations, we build connected FinTech products around real business workflows.

01

Custom FinTech Software

Purpose-built financial platforms designed around your business model, users, transaction lifecycle, integrations and operational requirements.


  • Business-Model-Led Design
  • Transaction Lifecycle Flows
  • Role-Based Access Control
  • Scalable Platform Architecture

02

FinTech Mobile Apps

iOS and Android applications for payments, wallets, banking, savings, lending, investing and other financial experiences.


  • iOS & Android Development
  • Payments & Wallets
  • Banking & Savings
  • Lending & Investing
FinTech app development →

03

FinTech Web Platforms

Responsive customer portals, business dashboards and browser-based financial products connected to the same backend and financial state.


  • Customer Portals
  • Business Dashboards
  • Browser-Based Financial Products
  • Shared Backend & State

04

Backend & Financial APIs

APIs and services for accounts, transactions, financial rules, integrations, notifications, reconciliation and application state.


  • Accounts & Transactions
  • Financial Rules & Logic
  • Notifications & Integrations
  • Reconciliation & State

05

Admin & Operations Software

Internal tools for user management, transaction review, approvals, exceptions, support, configuration, reporting and platform controls.


  • User Management
  • Transaction Review & Approvals
  • Exceptions & Support
  • Reporting & Platform Controls

06

Banking & Payment Integrations

Connect appropriate payment gateways, banking/open-banking services, identity providers or financial infrastructure according to product and market requirements.


  • Payment Gateways
  • Banking & Open Banking
  • Identity Providers
  • Market-Specific Infrastructure

07

FinTech AI Development

Carefully scoped AI integration for document processing, support, financial insights, workflow assistance and risk-review support where it adds measurable value.


  • Document Processing
  • Support Assistants
  • Financial Insights
  • Risk-Review Support

08

FinTech SaaS Development

Multi-tenant financial software for organizations, teams or businesses with roles, subscriptions, integrations and configurable workflows.


  • Multi-Tenant Architecture
  • Roles & Subscriptions
  • Configurable Workflows
  • Team & Organization Access

09

FinTech Modernization

Improve an existing financial product’s UX, architecture, APIs, integrations or maintainability without automatically rebuilding the entire system.


  • UX Improvements
  • Architecture Review
  • API & Integration Upgrades
  • Maintainability Refactoring
Software modernization →

Digital Products Built for Real Business Needs

See how we turn complex ideas into SaaS platforms and mobile apps, built around real user workflows, performance and business goals.

B2B SaaS · Customer Messaging · Web Platform

ChatLivo

ChatLivo customer communication platform UI design
Real Estate · Mobile App · Property Listings

Lika

Lika real estate app UI

FinTech Software Development Solutions

Our FinTech software development services cover payments, banking, lending, finance, insurance and B2B workflows across mobile, web and backend systems.

Digital Wallets & Payment Platforms

Build wallets and payment platforms with balances, transfers, payment methods, transaction history, confirmations and operational controls.

Digital Banking & Neobank Products

Develop digital banking products with onboarding, account experiences, transaction feeds, cards, financial integrations and back-office workflows.

Savings & Group Finance

Create savings products with individual or group goals, contribution schedules, payout logic, balances, controls and withdrawal workflows.

Lending & Loan Platforms

Support loan applications, document collection, reviews, approvals, disbursement states, repayment schedules and servicing workflows.

Personal Finance Software

Build personal finance tools for account visibility, budgeting, financial goals, expense organization, activity tracking and insights.

Investment & Wealth Platforms

Develop investment platforms with portfolio views, market information, account activity, watchlists and connected investment workflows.

InsurTech & RegTech Solutions

Create software for quotes, policies, claims, identity review, document workflows, case management and risk-focused financial operations.

B2B Financial Platforms

Build business finance platforms for payments, invoicing, reconciliation, approvals, dashboards and integrations across organizational workflows.

FinTech Integration & API Development

Connect payments, banking APIs, identity services and business systems with reliable integrations, webhooks and reconciliation workflows built around your FinTech product.

Payments

Gateway integrations for charges, payment methods, refunds, recurring payments or marketplace flows based on supported provider capabilities.

Banking / Open Banking

Connect bank-account data or supported financial actions through appropriate providers and APIs for the target geography.

Identity & Verification

Integrate third-party identity or KYC services when required, while keeping verification status and remediation workflows explicit in the product.

Notifications

Send relevant transaction and account updates through push, email, SMS or other approved channels without treating notifications as the system of record.

Accounting & Business Systems

Connect financial events with reporting, CRM, accounting or internal systems where the business workflow requires it.

Webhooks & Reconciliation

Design idempotent event handling, transaction references and reconciliation workflows so external events can be understood and investigated.

Integration principle

Naming a provider in a technology capability does not mean every Primocys FinTech product already has a production integration with that provider. Final integrations are selected and verified per project.

FinTech Security & Compliance Considerations

Build FinTech products with secure authentication, transaction controls, auditability, data protection and verification workflows aligned with project requirements.

  • Authentication & Access: role-aware authentication, session controls, recovery and authorization designed around customer and operational risk.
  • Transaction Integrity: clear server-side validation, transaction states, identifiers and error handling for money-related workflows.
  • Auditability: record appropriate security, financial and operational events where traceability is required for support, review or governance.
  • Data Protection: encryption, secrets management, infrastructure controls and data minimization selected according to architecture and deployment needs.
  • Verification Workflows: when identity/KYC is required, model real verification states such as pending, approved, rejected or review instead of reducing the process to one checkbox.
  • Vendor Boundaries: understand which responsibilities sit with the application, payment provider, bank, identity vendor, cloud environment and operating organization.

Compliance matters: Primocys can engineer controls and integrations that support a client’s compliance program, but PCI DSS, KYC/AML, GDPR or other regulatory compliance cannot responsibly be guaranteed from application code alone. Formal obligations and certification depend on the specific product, vendors, jurisdiction, infrastructure and operating processes.

What Our Clients Say
About Us

Our Client
Reviews

Adegbuyi Oduguwa Gregor Skerl Revanth K Dorian Çoçka

Customer experiences that speak for themselves

Our B2B and B2C platform helps Nigerian manufacturers sell at wholesale prices and suppliers offer competitive retail pricing, with a strong focus on Made in Africa products and easy local and international distribution. The app has received excellent user reviews for its design and unique features. Communication with the Primocys team was smooth in an agile setup, even beyond office hours when needed. Their mobile app development expertise is excellent—highly professional and reliable.

We hired Primocys to develop a highly complex and specialized mobile application, and they delivered outstanding results. The app includes advanced features such as timeline mixers, classifieds, payments, advertisements, GPS functionality, and more. Their technical skills, timely delivery, availability, and the personal attention Arpan Sagar brings to each project truly stand out. The team stays focused and committed from start to finish—an excellent experience overall.

”

The dating app was delivered successfully and approved by both Apple App Store and Google Play. Our users are highly impressed with the design, UI, and overall functionality. The project was well planned with clear milestones, and all modules were delivered on time. The team is talented, patient, and flexible, accommodating multiple scope revisions as requirements evolved. Their 24/7 development and support availability made the entire process smooth and reliable.

Great team with excellent communication and a strong commitment to on-time delivery. They developed a fully customized mobile app for both Android and iOS, perfectly matching our requirements. The entire process was smooth and professional, with clear updates at every stage. They are reliable, skilled, and very easy to work with. We’re continuing our partnership on more projects, and choosing them has been one of the best business decisions I’ve made.

AI Development for FinTech Solutions

Our AI development services help you integrate AI into FinTech software for document intelligence, customer support, financial insights, operational workflows and knowledge retrieval—while keeping sensitive decisions under appropriate human oversight.

Document Intelligence

Extract, classify and organize information from financial, onboarding or operational documents, with human review where accuracy and business consequences matter.

Customer Support

Use an AI chatbot to answer product questions, explain workflow status and summarize authorized account context, while routing sensitive or complex cases to human teams.

Financial Insights

Analyze available spending, transaction or activity data to help users understand patterns, trends and account activity without presenting automated outputs as financial advice.

Operations Assistance

Summarize cases, classify support issues and organize repetitive operational information so FinTech teams can review workflows more efficiently.

Risk Review Support

Surface unusual patterns, anomalies or review signals for qualified human teams instead of allowing an AI model to make consequential financial decisions on its own.

Knowledge Retrieval

RAG-based assistants can retrieve information from approved product, policy and operational knowledge sources while respecting access controls and defined permissions.

FinTech Software Architecture & System Design

Design scalable FinTech system architecture that connects customer experiences, financial logic, APIs, integrations, operations, security and AI into one reliable product.

Layer What it needs to solve
Customer Experience Onboarding, accounts, balances, payments, savings, loans or other financial actions with clear status and history.
Financial Domain Server-side business rules, transaction states, ledgers or balances where applicable, validation and workflow orchestration.
Integration Layer Payments, banking, identity and external financial APIs with controlled credentials, event handling and error recovery.
Operations User support, transaction review, approvals, exceptions, risk queues, reconciliation and product configuration.
Security & Audit Identity, authorization, session controls, protected data, event history and infrastructure boundaries.
AI Assistance Document, support, insight or review assistance with appropriate permissions, review and escalation.

FinTech Technology Stack for Scalable Products

We select technologies based on your FinTech product requirements, integrations, security needs, scalability goals and existing infrastructure. The stack can vary by project, platform and financial workflow.

Frontend

  • React
  • Next.js
  • Flutter
  • iOS
  • Android

Backend

  • Node.js
  • Python
  • Laravel
  • REST APIs
  • Microservices

APIs & Integrations

  • Payment APIs
  • Banking APIs
  • Open Banking
  • Third-Party APIs
  • Webhooks

Database & Cloud

  • PostgreSQL
  • MySQL
  • Redis
  • Cloud Infrastructure
  • Containerized Deployment

AI & Automation

  • LLMs
  • RAG
  • AI Agents
  • Document AI
  • Workflow Automation

How We Approach FinTech Software Development

From understanding your product model to supporting live operations, we build every FinTech product around connected workflows, secure access and consistent financial state.

01
Discover
Product model, users, money flows, markets, integrations and regulatory dependencies.
02
Map
Transaction states, user journeys, exceptions, operations and external-system boundaries.
03
Architect
Mobile/web, backend, financial logic, data, integrations, access and audit needs.
04
Build
Product surfaces and services together so financial state remains consistent across the system.
05
Secure
Implement identity, role-based access, protected data, session controls and audit trails around every financial action.
06
Validate
Permissions, transaction edge cases, integrations, failures, recovery and user clarity.
07
Launch
Deploy with monitoring, operational visibility and a roadmap based on real product usage.
08
Support
Maintain, monitor and improve the product as transaction volumes, integrations and regulatory requirements evolve.

FinTech Engineering Built Around the Complete Product

Primocys builds connected FinTech products across customer-facing apps, web platforms, backend services and operational systems, keeping financial workflows aligned across the product.

01

Mobile, Web & Backend

Primocys builds connected FinTech products across customer-facing apps, web platforms, backend services and operational systems, keeping financial workflows aligned across the product.

02

Proven FinTech Product Experience

Fastsusu demonstrates experience with group savings, financial workflows, balances, contributions, payouts and withdrawal-oriented product journeys.

03

Workflow-First Product Design

We map financial actions, states, rules and exceptions before refining the interface, helping the user experience stay aligned with the underlying product logic.

04

Integration-Aware Engineering

We treat external financial systems as critical dependencies, accounting for APIs, events, credentials, failures, webhooks and integration testing throughout development.

05

AI With Clear Guardrails

We apply AI through AI agent development where it can provide practical assistance, such as knowledge retrieval, document processing and support workflows, while keeping sensitive financial decisions appropriately controlled.

06

Existing Codebases Welcome

Already have a FinTech product? We review the existing architecture, codebase, integrations and workflows to identify what should be preserved, improved or replaced before further development.

FinTech Software Development Cost Factors

FinTech software does not have one fixed price. Cost and scope depend on the financial workflows involved, user roles, platforms, integrations, security and compliance requirements, data migration and the level of customization your product needs.

Product Scope & Modules

Wallet, payment, lending, savings or investment modules, plus admin tools and reporting, each add design, backend logic and testing effort.

Users & Roles

Customers, business users, support agents, risk reviewers and administrators need different views, permissions and approval flows, which shapes UX and backend design.

Integrations

Payment gateways, banking or open-banking APIs, KYC providers, notifications and accounting systems are often major cost drivers, along with webhook and reconciliation handling.

Security & Compliance Needs

Authentication, audit trails, transaction integrity, data protection and market-specific requirements such as KYC/AML or PCI DSS scope add design, testing and infrastructure work.

Data Migration

Moving accounts, balances, transaction history and customer records from legacy systems needs mapping, cleanup, reconciliation and careful validation.

Platforms & AI Features

iOS, Android and web delivery, plus AI-assisted workflows such as document processing or support, all affect effort, testing depth and ongoing maintenance.

FinTech Solutions for Modern Financial Products

Primocys builds custom FinTech software for payments, banking, lending, savings, personal finance, wealth management and connected financial workflows across web, mobile and digital platforms.

FinTech Software Development FAQs

Find answers about FinTech software development, mobile and web platforms, payments, wallets, lending, AI, KYC/AML, PCI DSS, cost and timelines.

What is FinTech software development?

FinTech software development is the design and engineering of digital financial products such as payment platforms, wallets, savings products, lending systems, digital banking experiences, financial dashboards and operational software. It can span mobile, web, backend services, integrations and administrative tools.

What FinTech software can Primocys develop?

Primocys can develop payment and wallet products, savings platforms, lending workflows, digital banking experiences, personal finance tools, financial marketplaces, B2B finance software, FinTech SaaS, administrative platforms and AI-enabled financial workflows depending on the project.

Can you build both a FinTech mobile app and web platform?

Yes. A product can include iOS and Android apps, customer web portals, operational dashboards, backend APIs and administration within one connected architecture.

Can Primocys integrate payment gateways or banking APIs?

Yes, subject to provider availability, target country, account approval and technical requirements. We define the integration, transaction states, webhooks, error handling and operational workflow around the selected provider.

Can you build a digital wallet?

Yes. Wallet scope can include balances, transaction history, transfers, funding or withdrawal workflows, notifications and administration, depending on the financial infrastructure and regulatory model involved.

Can you build lending or loan software?

Yes. We can develop application, document, review, approval, disbursement-status, repayment and servicing workflows. Credit, banking and regulated functions depend on the licensed providers and business model involved.

Can AI be added to FinTech software?

Yes. Appropriate uses can include document processing, support, workflow summaries, financial insights or risk-review assistance. We define data access, review and decision boundaries before implementation.

Is FinTech software built by Primocys automatically PCI DSS compliant?

No. Primocys can engineer architectures and controls that support PCI-related requirements, but PCI DSS scope and compliance depend on how cardholder data is handled across the complete system, providers, infrastructure and operating processes. Formal compliance should be verified for the specific deployment.

Can you implement KYC and AML workflows?

We can integrate appropriate identity/KYC services and build verification, review and status workflows around them. The legal obligations, screening rules and required providers depend on the product and jurisdiction and should be defined with qualified compliance guidance.

Can you take over an existing FinTech product?

Yes. Primocys can review the current codebase, architecture, UX, APIs and integrations and propose feature development, stabilization or modernization based on what is already working.

How much does FinTech software development cost?

Cost depends on product type, platforms, money flows, integrations, identity/compliance scope, operational tooling, security requirements and existing systems. A requirements and integration review is necessary before a meaningful estimate.

How long does FinTech software development take?

Timeline varies between a focused finance MVP and a complex multi-product financial platform. We estimate after mapping user journeys, transaction states, external integrations, operational workflows and release scope.

Build a FinTech Product
Ready to Scale

Turn your FinTech idea into a secure, scalable product with connected workflows, integrations and technology built around your business requirements.

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