Bank-Grade · Compliance-First FinTech

FinTech App Development
Services That Build Trust

Appther is a fintech app development company that engineers secure, compliant, and scalable financial products — from digital banking and payment wallets to lending, wealthtech and insurtech. PCI-DSS, PSD2 and GDPR ready, launched in as little as 12 weeks.

PCI-DSS & PSD2 Biometric Security AI Fraud Detection 12-Week MVP
Payment secured
AI blocked fraud
Instant transfer
200+
Products shipped globally
15+
Countries served
99.9%
Platform uptime SLA
12 wk
To a compliant MVP
Why FinTech Is Different

Financial software demands trust, security & compliance

In fintech, a single vulnerability or compliance gap can cost your licence and your customers' confidence. That's why we don't just build apps — we engineer regulated financial products where security, auditability, and reliability are designed in from the very first sprint, not bolted on before launch.

Security is non-negotiable

Bank-grade encryption, tokenization, biometric auth, and penetration testing on every build — because you're handling people's money, not just data.

Compliance from day one

PCI-DSS, PSD2, GDPR, KYC/AML and SOC 2 are baked into the architecture, so audits and regulatory approvals become milestones, not roadblocks.

Built to scale

Event-driven microservices and auto-scaling cloud infrastructure that stay fast and reliable from your first thousand users to your first million.

FinTech Solutions

FinTech apps we design & develop

Whatever your financial product, our team has the domain expertise and pre-built accelerators to ship it faster — securely and at scale.

Digital Banking & Neobanks

Full-featured mobile banking and neobank apps — accounts, cards, transfers, savings vaults, and onboarding — with core-banking and BaaS integrations.

Account openingCard issuingKYC

Digital Wallets & Payments

E-wallets, P2P transfers, QR and contactless payments, bill pay, and merchant checkout with 30+ gateway and UPI integrations.

P2P transfersUPIContactless

Lending & BNPL

Digital lending, buy-now-pay-later, and micro-loan platforms with automated credit scoring, e-KYC, loan management, and repayment engines.

Credit scoringLoan originationBNPL

WealthTech & Investing

Investment, trading, and robo-advisory apps — portfolio management, fractional investing, market data, and automated rebalancing.

Robo-advisoryTradingPortfolios

InsurTech

Digital insurance platforms — policy management, instant quotes, claims automation, and AI-driven underwriting and risk assessment.

Claims automationUnderwritingQuotes

Personal Finance (PFM)

Budgeting, expense tracking, savings automation, and financial-wellness apps powered by account aggregation and AI insights.

BudgetingRound-upsInsights

Remittance & Cross-Border

Multi-currency remittance and international transfer apps with FX, compliance screening, and low-cost payout rails.

Multi-currencyFXPayouts

Blockchain & Crypto

Crypto wallets, exchanges, DeFi, and tokenization platforms with secure key management and on/off-ramp integrations.

Crypto walletsDeFiWeb3

RegTech & Compliance

Automated KYC/AML, transaction monitoring, fraud analytics, and regulatory reporting tools that keep you audit-ready.

KYC/AMLMonitoringReporting
Our Services

End-to-end fintech development services

From strategy and compliance architecture to launch and scaling — one accountable team across the entire product lifecycle.

FinTech Consulting & MVP Strategy

Product discovery, regulatory scoping, and a validated MVP roadmap that de-risks your launch.

Custom App Development

Native iOS/Android or cross-platform Flutter & React Native apps engineered for performance.

FinTech UI/UX Design

Conversion-focused, accessible interfaces that make complex finance feel effortless and trustworthy.

API & Banking Integrations

Open Banking, payment gateways, KYC providers, and core-banking connections built to spec.

AI & Data Engineering

Fraud detection, credit models, robo-advisory, and conversational banking with explainable AI.

Legacy Modernization

Re-platform and migrate legacy financial systems to secure, cloud-native architectures with zero downtime.

Security Testing & QA

VAPT, code audits, and automated test suites so every release ships secure and stable.

Support & Maintenance

24/7 monitoring, patches, and feature releases under clear SLAs after go-live.

Cloud & DevOps

Auto-scaling AWS/GCP/Azure infrastructure, CI/CD, and observability tuned for financial workloads.

Security & Compliance

Bank-grade security, audit-ready compliance

We architect every fintech product around a zero-trust security model and the regulatory frameworks your market demands — so you can pass audits, win banking partners, and earn customer trust from launch day.

PCI-DSS PSD2 & Open Banking GDPR & CCPA SOC 2 ISO 27001 KYC / AML

AES-256 & TLS 1.3 Encryption

Data encrypted at rest and in transit, with tokenization of all sensitive card and account data.

Biometric & MFA Authentication

Face/Touch ID, device binding, and adaptive multi-factor auth to stop account takeover.

Real-Time Fraud Detection

AI models flag anomalies and block suspicious transactions before they settle.

Full Audit Trails

Immutable logs and reporting for every action — ready for regulators and partners.

How We Work

Our fintech development process

A proven, compliance-first delivery model that gets you to a secure launch — fast, transparently, and without surprises.

01

Discovery & Compliance Scoping

We map your business model, target markets, and the exact regulatory requirements — defining the compliance and security blueprint before a line of code.

02

UX & Secure Architecture

Clickable prototypes plus a scalable, zero-trust system design covering data flows, integrations, and infrastructure.

03

Agile Development

Two-week sprints with a working prototype by week 3, so you validate features early and steer the build with confidence.

04

Security Testing & QA

Penetration testing, code audits, and automated regression suites — every release is verified secure and stable.

05

Launch & Store Approval

App Store and Play Store submission, banking-partner sign-off, and a monitored, staged production rollout.

06

Scale & Support

24/7 monitoring, performance tuning, new features, and ongoing compliance re-certification as you grow.

Technology

A modern, secure fintech tech stack

Battle-tested tools chosen for security, performance, and regulatory reliability.

Mobile

SwiftKotlinFlutterReact Native

Backend

Node.jsJava / SpringPythonGo.NET

Cloud & DevOps

AWSGCPAzureKubernetesTerraform

Payments & Banking

StripeAdyenPlaidRazorpayUPIMarqeta

Data & AI

PostgreSQLKafkaTensorFlowPyTorchSnowflake

Security

OAuth 2.0VaultAES-256WAFOWASP MASVS
Why Appther

Why fintech founders choose Appther

A partner that treats trust, security, and speed as the same priority.

Compliance-First DNA

We've delivered regulated, security-critical platforms — so PCI-DSS, PSD2, and KYC/AML are second nature, not a learning curve on your dime.

Speed Without Shortcuts

A working prototype in week 3 and a compliant MVP in 12 weeks — fast delivery that never trades away security or auditability.

Fixed-Price Transparency

Clear, fixed-price proposals after a free scoping session. No hourly billing surprises, no scope-creep invoices.

Global Delivery

200+ products shipped across 15+ countries, with region-specific compliance expertise for the US, UK, EU, and India.

AI-Native Engineering

In-house AI/ML team for fraud detection, credit scoring, and robo-advisory — a real edge in modern financial products.

Long-Term Partnership

90 days of free post-launch support and dedicated teams that scale with you — we're invested in your growth, not just the launch.

Market Opportunity

FinTech is reshaping how the world moves money

The global fintech market is projected to surpass $1.5 trillion in revenue by 2030, driven by embedded finance, real-time payments, and AI-powered banking. The winners will be the products that pair delightful experiences with uncompromising security. That's exactly what we build.

Building for a specific vertical? Explore our FinTech industry solutions for sector-specific use cases, or talk to us about your product.

$1.5T

Projected fintech revenue by 2030

73%

Of consumers use a fintech app monthly

Faster payments with real-time rails

60%

Of fraud caught earlier with AI models

FAQ

FinTech app development questions, answered

FinTech app development typically ranges from $40,000 for a focused MVP to $250,000+ for a full-scale, multi-product platform. The cost depends on the app type (wallet, neobank, lending, wealthtech), compliance scope (PCI-DSS, PSD2, KYC/AML), integrations, and platforms. After a free scoping session we provide a detailed, fixed-price proposal — no hourly billing surprises.
A compliance-ready fintech MVP usually launches in 12–16 weeks. A full-scale platform with multiple products, admin panels, and deep banking integrations takes 5–9 months. We work in two-week agile sprints and deliver a working prototype by week 3 so you can validate early.
Yes. We build compliance in from day one — PCI-DSS for card data, PSD2 and Open Banking for the EU/UK, GDPR and CCPA for data privacy, KYC/AML with automated identity verification, and SOC 2 / ISO 27001 aligned security controls. We also support region-specific frameworks such as RBI guidelines (India), FCA (UK), and FinCEN (US).
Every app ships with a zero-trust architecture: AES-256 encryption at rest, TLS 1.3 in transit, biometric and multi-factor authentication, tokenization of sensitive data, device binding, real-time AI fraud detection, and mandatory penetration testing (VAPT) before launch. We never store raw card or credential data and follow OWASP MASVS mobile security standards.
We integrate 30+ payment and banking providers including Stripe, Adyen, Plaid, Razorpay, UPI, PayPal, Braintree, Marqeta (card issuing), Dwolla (ACH), and Wise (cross-border), plus Open Banking / account aggregation APIs. We also build direct core-banking, ledger, and card-network integrations for enterprise clients.
Yes. We build AI-powered fraud and anomaly detection, credit-scoring and risk models, robo-advisory and portfolio automation, conversational banking assistants, and document/KYC intelligence. Our AI team designs models that are explainable and audit-ready — essential for regulated financial products.
We deliver the full stack — native iOS and Android (or Flutter/React Native) apps, web dashboards, admin and compliance back-office, secure APIs, and cloud infrastructure. You get one accountable team from architecture and design through to launch, monitoring, and scaling.
Appther has shipped 200+ products across 15+ countries, including AI-driven and regulated financial platforms. We combine bank-grade security, compliance-first architecture, and modern UX with fixed-price delivery, a prototype in week 3, and 90 days of free post-launch support — so you launch fast without cutting corners on trust.
Start Your Project

Let's build your fintech product

Tell us about your idea. You'll get a response within 24 hours, a free scoping session, and a clear, fixed-price roadmap — no obligation.

Free scoping session & fixed-price proposal
NDA available on request — your idea stays safe
Working prototype demo delivered in week 3
Dedicated team & 90-day post-launch support

 Your information is fully confidential. We respond within 24 hours.

Ready to Build?

Launch a FinTech Product People Trust

Book a free scoping session. We'll map your platform, define the compliance path, estimate the exact timeline, and show you a relevant case study — no commitment required.

Free scoping session
Fixed-price proposal
Prototype in week 3
Compliance built in
90-day post-launch support