Why Fintech’s Are Choosing Flutter

Since Flutter's official release in 2017, it’s rapidly become a go-to framework for building mobile apps. Nearly 30% of all new apps are created with Flutter, according to Apptopia—and fintech is no exception. With its performance-first architecture, sleek UI capabilities, and ever-growing ecosystem, Flutter is now powering some of the most innovative financial experiences on iOS and Android alike.

At Leenspace, we’ve worked with digital product teams that operate under pressure: fast timelines, high customer expectations, and strict regulatory requirements. That’s why we recommend Flutter as a strong foundation for financial apps—especially when time to market, consistency, and long-term scalability are mission critical.

Reconsidering the Native-Only Mindset

There’s a lingering belief in some fintech circles that only fully native codebases can guarantee the speed, performance, and device-level integration required by financial apps. But that assumption is quickly becoming outdated.

Flutter compiles to native code and provides access to platform-specific APIs and hardware integrations like biometrics, Apple Pay, Google Pay, NFC, and more—while maintaining the advantages of a single, shared codebase.

Whether you’re launching a new product or modernizing an existing one, Flutter allows teams to move faster, reduce development costs, and reach users on both platforms without compromise.

What Flutter Offers for Fintech

At Leenspace, we specialize in building fintech products that demand reliability, security, and great design—delivered at startup speed. Flutter gives us the foundation to meet those goals with:

• One Codebase, Every Platform: Save time and money while launching high-quality apps on iOS and Android.
• High Performance: No bridges, no lag—Flutter compiles directly to native ARM code.
• Device Integration: Tap into secure platform features like biometrics, mobile payments, and push notifications with confidence.
• Pixel-Perfect UI: Full control over UI across devices, ideal for apps where trust and usability are key.
• Scalable Architecture: Built-in tooling and modular design support long-term evolution and team growth.
• Streamlined QA: Flutter’s integration with automated testing and CI/CD pipelines keeps releases stable and efficient.
  
  

Real-World Results

Across the fintech industry, leading apps are proving that Flutter is more than capable of handling enterprise-level requirements.

Much like Nubank—Latin America’s largest digital bank with over 100 million users —Mynehub chose Flutter to accelerate delivery, scale across markets, and maintain feature parity on Android and iOS from a single codebase.

MyneApp: Expanding Financial Access Across the Caribbean

To tackle financial exclusion in underserved markets, Liberty Latin America, a leading telecom serving 8M+ mobile users across Central America and the Caribbean, launched MyneApp—a VISA-certified digital wallet designed to empower users in low-connectivity environments. With a focus on performance, compliance, and usability, Mynehub turned to Leenspace to bring the vision to life.

The challenge: Build a high-performing digital wallet that could support NFC payments, loan access, and complex onboarding—while running seamlessly on small screens and weak internet connections.

The solution: Leenspace led frontend development, streamlining onboarding (including proof-of-life and risk verification), optimizing performance on constrained devices, and integrating secure VISA NFC payments—delivering a sleek UX that matched global fintech leaders like Nubank and Revolut.

The result:
✅ A successful rollout in Jamaica, with scalable architecture for regional expansion
✅ Seamless financial services access for users outside the traditional banking system
✅ A fast, intuitive app experience built to meet strict regulatory and performance standards

“Leenspace has been an exceptional partner in bringing our vision for the Myne App to life. Their team demonstrated remarkable efficiency, consistently meeting deadlines and addressing challenges with professionalism and attentiveness. They excelled in simplifying a complex onboarding process, making it user-friendly and accessible even in regions with small-screen devices and limited internet connectivity.”
— Project Lead, Mynehub

Scaling Innovation Without Sacrificing Quality

The fintech world is moving fast—and your technology stack needs to keep up. With Flutter, your team can innovate confidently without getting bogged down by technical debt or platform-specific limitations.

We’ve helped teams transition from outdated native architectures to modern Flutter stacks. In some cases, we’ve implemented hybrid strategies: embedding Flutter into existing native apps, then scaling gradually. In others, we’ve launched from scratch using Flutter’s full potential for performance, testing, and design flexibility.

If you're navigating growing demands from users, stakeholders, and regulators, now is the time to consider Flutter not just as a framework—but as a strategic advantage.

Let’s Talk Flutter for Fintech

At Leenspace, we build powerful, multi-platform financial applications using Flutter—helping teams move faster without compromising on performance, security, or quality. Whether you’re launching your first MVP or evolving a mature platform, we can help you:

• Migrate from native to Flutter
• Build secure, scalable fintech solutions
• Set up robust QA pipelines and CI/CD workflows
• Train internal teams to scale with confidence
  
  

Have a fintech challenge in mind?
Let’s explore what Flutter—and Leenspace—can do for you. Contact us!

Written by Guillermo Iraola – Chief Growth Officer, Leenspace
Helping fintech teams build smarter and scale faster with Flutter.

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