Brian was a senior app developer on the original InvestorLine app, an investment platform by Bank of Montreal (BMO).

After founding his own company, he developed Pay Off Debt, a debt management app that helps users prioritize and accelerate their debt repayment.

He also created BallParkDeal, a real estate investment app that assists renters in calculating rental potential and determining the optimal house price to purchase.

These are just a few examples of the financial apps Brian has worked on. If you are looking to get your Financial App launched, contact Flutter Freelancer, Brian Kayfitz.

The length of time to build a FinTech app or any app depends on its features and complexity. A minimum viable product (MVP) can take a few weeks to develop, while more complex enterprise-level apps can take several months or even over a year. Contacting a FinTech development agency like Brian Kayfitz Development Corp can help you estimate the time and cost for your project.

As a finance app developer, I have experience connecting to various backend servers, CRMs, FinTech services, and other third-party tools. As long as a secure API exists—or can be built—there should be no issues. Adding agents or custom LLM models, as well as developing customized LLM models in Python and integrating them with Flutter, is well within the capabilities of senior mobile developer Brian Kayfitz.

If you have a financial app written in native code or Flutter, Brian Kayfitz can help add new features or update your existing app. No feature is too big or small. Recently, many app developers have been focused on implementing LLM models and agents into existing financial apps.

A financial app developer is typically a senior mobile app expert who focuses on developing your app and providing technical consultation. Their primary role is coding and ensuring the app functions smoothly.

A financial app development agency, on the other hand, offers a full suite of services to take your app from idea to launch. Besides development, agencies usually provide additional resources such as designers, project managers, testers, and mobile app strategists. These extra services come at a higher cost but offer a more comprehensive approach to app development and delivery.

The compliance requirements for a financial app depend on the services it provides, the financial data it handles, and where it operates. Having built apps in Canada, where bank compliance is the strictest in the world, Brian takes compliance seriously. Requirements may include PCI DSS for payment card data, PIPEDA for privacy in Canada, GDPR in Europe, SOC 2 security controls, Open Banking requirements, and FINTRAC regulations for certain Canadian financial services.

Hiring a fintech freelancer gives you direct access to an experienced developer who can handle the technical, security, and compliance requirements of your financial app without the overhead of a large agency.

Security First Development – Secure authentication, encrypted data, secure API communication, key management, and protection of sensitive financial information.

Fintech Compliance Experience – Development with requirements such as PCI DSS, privacy regulations, data residency, and backed by Canadian compliance experience.

Secure Payment Integration – Integration with Stripe and other payment providers without unnecessarily exposing or storing sensitive payment information.

Banking & Financial API Integration – Experience connecting apps to banking, payment, accounting, investment, and other financial APIs.

Biometric Authentication & MFA – Face ID, fingerprint authentication, passkeys, multi-factor authentication, and secure account recovery.

Long Term Maintenance – security updates, OS changes, API changes, new financial integrations, and feature development can continue after launch.

App Store & Google Play Experience – Financial apps can face additional scrutiny. Brian being an experienced mobile developer can handle the technical and store requirements through release.

Cross-Platform Development – Flutter can provide secure iOS and Android apps from one codebase, reducing development and ongoing maintenance costs.

Marketing Support – Brian partners with App Marketing Agency that can help with ASO, digital marketing and competitive intelligence prior and after launch of your app.

Yes. Brian provides financial mobile app development for iOS and Android using Flutter. As a financial mobile app developer, Brian can build new financial products or work with an existing application to add features, improve performance, integrate APIs, or modernize an older codebase.

Yes. Brian provides FinTech mobile app development for companies that need secure and scalable applications for iOS and Android. As a FinTech mobile app developer, Brian can develop the mobile front end, integrate it with existing financial services and APIs, or help design the technical architecture for a new FinTech product. After all, he has build BMO’s Investorline.

The cost of developing a financial app depends on its complexity. Features that typically increase costs include connecting to third-party databases or building custom APIs, integrating AI packages and natural language processing (NLP), as well as implementing complex formulas to power calculations. A basic MVP financial app can start at around $5,000, while large-scale banking apps can reach into the million-dollar range.

Any app development that is done by Brian Kayfitz for your company is owned by you. 

Brian is available post launch, to help address any bugs or future features. As he works on an hourly basis, he can address any small or large issues in a timely manner. 

As a mobile app developer, Brian Kayfitz has not only integrated existing AI agents and LLM models into Flutter apps but can also build agents or AI models from scratch using Python. If you’re looking to develop a financial app with AI capabilities, Brian Kayfitz is the perfect mobile app freelancer for the job, as he understands both Flutter for the front end and Python for the backend.

If you have incomplete code or features that need to be added to an existing app, or if your code base isn’t written cleanly and isn’t easy for other developers to work with, Brian can help. As a Flutter expert, he can identify problems by performing thorough code reviews. As a Flutter developer, he can finalize your app development. And as a Flutter mentor, he can train your team on best practices to ensure stable, maintainable development going forward.

• Same quality as any native technology such as Swift or Kotlin.
• Reduce time of development by having one code based for iOS, Android and the web.
• Reduce costs with cross platform mobile app development.

Financial apps can include: Banking & Payment Apps, Debt Management Tools such as PayOff Debt, Investment & Stock Tracking Apps such as BMO’s Investorline, Budgeting & Expense Tracking Apps, Tax Preparation & Filing Solutions, Credit Score & Financial Wellness Platforms.

If you are looking to have your fintech app built or have a financial app that needs to be updated, fixed or re-written in Flutter, Brian can help.

FinTech app development is the process of designing and building applications for financial services, banking, investing, budgeting, payments, debt management, and other financial products. As a FinTech app developer, Brian can help companies take an idea from initial requirements through development, testing, launch, and ongoing support.

Yes. Brian provides custom financial app development based on the specific requirements of a business and its users. Custom financial apps can include calculators, dashboards, account management, reporting, budgeting, investment tracking, debt management, payments, and integrations with existing financial systems.

Yes. Brian has experience working on financial applications, including the original BMO InvestorLine mobile application. Banking app development can include account management, financial dashboards, transaction history, notifications, secure authentication, and integration with banking services. Brian can also provide mobile banking app development when a financial institution or FinTech company needs applications for both iOS and Android.

Yes, Brian has build both Kotlin and Swift app, now that Flutter is becoming the go to technology for financial mobile apps, he can easily migrate your financial app into Flutter.