01
Neobank & Challenger Banking
Consumer banking apps with BaaS integrations and rich money-movement features.
Financial Services / Fintech App Development
Fintech App Development
We engineer fintech mobile apps that earn user trust in the first sixty seconds — bank-grade security, sub-second interactions, and experiences that still feel like consumer apps people love to open.
2×
Day-30 retention vs. category average
PCI-DSS L1
Ready mobile architecture
<1.5s
Cold-start to first interaction
Trusted by global innovators
Industry Overview
Fintech App Development: Engineered End-to-End
Winning fintech apps feel fast and trustworthy at the same time — and that's an engineering problem, not just a design problem. We build apps where biometric auth, tokenized payments, regulatory compliance, and delightful UX are all part of the same foundation.
Industry Challenges
What Stops Most Teams From Solving This Today
Common friction points we hear from financial services teams scoping this kind of platform.
Trust vs. Speed Tradeoff: Heavy compliance layers make most banking apps feel sluggish and intimidating.
Integration Fatigue: KYC, ledger, card issuing, and payment processor integrations turn into brittle spaghetti.
Mobile Security Gaps: Jailbreak/root detection, secure storage, and runtime protection are often afterthoughts.
Release Friction: App-store review cycles and fintech release windows don't naturally align.
Our Approach
Our Engineering Approach
We engineer for the operational reality — not the demo.
Native Performance Baseline
React Native, Swift, and Kotlin engineered for sub-second interactions even on mid-tier devices.
Compliance-Native Mobile SDK
KYC, biometric auth, PCI-scoped payment UI, and audit logging baked into the app foundation.
Continuous Delivery With Guardrails
OTA updates, release rings, and feature flags that ship safely without surprising regulators.
Capabilities
Capabilities
Production-grade features the platform ships with from day one.
Biometric Auth
Face ID / fingerprint, device binding, and passkey-based login.
Onboarding & KYC
Doc capture, liveness, sanctions screening, and identity verification flows.
Accounts & Transactions
Real-time balances, transaction feeds, and search with sub-second latency.
Payments & Transfers
P2P, bill pay, ACH, RTP, card, and QR payment flows with tokenized credentials.
Card Controls
Freeze/unfreeze, spending limits, and virtual card issuance.
Savings & Investing
Goal-based savings, round-ups, and brokerage/investment modules.
Notifications & Chat
Real-time alerts and in-app support with fraud-aware escalation.
Security Runtime
Jailbreak/root detection, cert pinning, and runtime app self-protection.
How It Works
Reference Architecture
How data and decisions flow end-to-end.
Mobile Foundation
Shared design system, auth module, and secure networking layer.
01
1
Money Modules
Accounts, transactions, transfers, cards, and investments as cleanly separated domains.
02
2
Compliance Layer
KYC, AML screening, transaction monitoring, and auditable activity trails.
03
3
Integration Gateway
BaaS, ledger, issuer-processor, and payment-rails integrations behind one contract.
04
4
Delivery Pipeline
OTA updates, staged rollout rings, feature flags, and crash analytics.
05
5
Engineering Stack
Technology Stack
A pragmatic stack chosen for reliability, speed, and ease of operation.
Mobile
React NativeSwiftKotlinSwiftUIJetpack Compose
Backend
Node.jsGoRustGraphQLPostgreSQL
BaaS / Rails
PlaidMarqetaGalileoModern TreasuryStripe
Identity / KYC
PersonaOnfidoJumioAlloy
Delivery
CodePushEAS UpdateFirebaseFeature flags
Security
OWASP MASVSCert pinningRASPSecure Enclave
Measured Impact
Measured Impact
Quantified outcomes from production deployments.
2×
Day-30 retention vs. category
<1.5s
Cold-start to first interaction
4.8★
Average app-store rating
0
Material PCI or MASVS findings
Neobank Super-App Rebuild
A fast-growing neobank's first-generation React Native app had begun to buckle — cold starts over 4 seconds, weekly crash-rate rising, and a growing queue of compliance-driven UX workarounds. Customer NPS plateaued, and the product team couldn't ship fast enough to keep up with new products.
We rebuilt the app in nine months with a modular native-core architecture and shared design system. Outcomes: cold starts dropped to 1.3s, day-30 retention doubled, the app hit 4.8★ on both stores, and the product team regained the ability to ship weekly without breaking the compliance perimeter.
Case Study
Use Cases
Where This Earns Its Keep
Common deployment patterns we see across customers.
02
Investment & Brokerage
Retail investing apps with market data, orders, and portfolio management.
03
Lending & BNPL
Consumer and SMB lending, BNPL, and credit builder apps.
04
Payment Apps
Consumer-to-consumer and merchant payment apps with QR and tap-to-pay.
05
Crypto / Stablecoin Apps
Compliance-first crypto apps with custody and on/off-ramp flows.
06
Insurance (Insurtech)
Digital insurance experiences — quote, bind, claim — on mobile.
Integrations
Integrates With Your Existing Stack
We connect to the systems your teams already know.
Banking
Plaid
Payments
Stripe
Card Issuing
MarqetaGalileo
Treasury
Modern Treasury
Identity / KYC
Persona
Analytics
Segment
Support
Intercom
Compliance-First Development Services Backed by Global Standards
We build secure, scalable products designed for privacy, interoperability, and regulatory readiness from day one across every sector we serve.
General Data Protection Regulation
Implement lawful consent flows, data minimization, and secure processing for global data privacy.
Service Organization Control 2
Verified controls for security, availability, and confidentiality of enterprise data systems.
Information Security Management
Adhering to the international gold standard for managing information security risks.
Payment Card Industry (PCI DSS)
Securing payment transactions and protecting cardholder data with industry-best practices.
Our Edge
Why Global Leaders Choose Us
We combine deep technical expertise with industry-specific knowledge to deliver solutions that aren't just functional, but transformational.
Enterprise-Grade Security
We implement rigorous security protocols and compliance standards (HIPAA, GDPR, SOC2) across all industrial solutions to protect sensitive data.
High-Performance Scaling
Our architectures are built to handle massive data loads and user bases, ensuring seamless performance whether you're serving ten or ten million.
Accelerated Time-to-Market
Leveraging our suite of internal tools and proven frameworks, we reduce development cycles and get your product to market 40% faster.
Embedded AI Integration
Beyond simple wrappers, we build deep-learning integrations and predictive analytics directly into the core of your industry-specific workflows.
Engagement Model
Engagement Model
Predictable, structured delivery from kickoff through long-term ownership.
01
Discovery & Scoping
We map the existing systems, constraints, and stakeholders to scope a focused 8–12 week first delivery.
02
Architecture & Pilot
A working slice on a representative environment — proving the data flow end-to-end before scaling.
03
Production Engineering
Hardened services, observability, access controls, and audit logging go live behind your IAM.
04
Operate & Iterate
We stay on as the embedded engineering team — closing tickets, tuning models, and shipping new value.
Voices of Success
We don't just build products; we forge lasting partnerships. See how we've helped industry leaders transform their vision into technical reality.
"I can clearly see how Agnotic has a unique way of handling end-to-end development. They are always active on quick chat and provide support quickly."
Aaron Phelan
Founder, Benchmark
"Agnotic is the best technical team we evaluated. Their engineering excellence made our work dramatically easier and allowed us to stay focused on what matters most for maternal care outcomes. They took full ownership of the technical execution, and we are always happy to continue working together."
Kim Smith
Founder, My Lauren
"Agnotic combines deep technical expertise with strong domain knowledge. They understand the business context, anticipate challenges, and make collaboration smooth and effective."
John Pasmore
Founder, Latimer
More in Financial Services
More Financial Services Solutions
Explore other production-grade engineering platforms we deliver across financial services.
Cross-Industry Reach
The Same Engineering Patterns, Across Other Industries
The technical patterns behind this platform translate naturally into adjacent verticals.
Frequently Asked Questions
Both. For most fintech apps React Native with a thin native-core layer delivers the best economics. Where the performance or hardware-access envelope requires it, we build fully native in Swift and Kotlin.
Industries
A Unified Vision that Caters to Diverse Industry Demands
Build your next financial services platform with us
We engineer production-grade financial services platforms end-to-end. Talk to us about scoping a focused 8-week pilot.