Help & FAQ

We help your business grow with technology by identifying ROI-driven opportunities and delivering intelligent, scalable software tailored to your needs. Whether you need a custom web or mobile app, a proof of concept to validate your idea, or a fully dedicated team to extend your engineering capacity — we’ve got you covered. From discovery and UX to deployment and long-term support, Lengin provides end-to-end software development. We also offer automation solutions and fractional CTO guidance to ensure your tech aligns with business goals.

- Our developers are distributed across the globe, giving us true 24/7 coverage and cultural adaptability. - A large part of our team comes from Eastern Europe — including Poland, Ukraine, Hungary, Bulgaria, the Czech Republic, and Romania. - What sets us apart is our network of local fractional CTOs based in key business and tech hubs worldwide - acting as strategic bridges to translate business needs into technical roadmaps, align with stakeholders, and ensure delivery speed and quality.

We offer two ways of collaboration, depending on your needs: 1. Joint delivery with your team — we work side by side with your in-house experts, while you provide feedback, domain knowledge, and business requirements. This approach ensures tight alignment with your goals and processes. 2.Full end-to-end delivery — we take full responsibility for the product, from business analysis and user research to design, development, and deployment. You can stay hands-off while we deliver a complete, market-ready solution. Transparent communication is at the core of both models, so you always have clarity on progress and results.

At Lengin, we specialize in building intelligent, high-performance applications. From responsive web platforms to robust mobile and enterprise solutions, we tailor our development to your industry and tech stack. We integrate AI to automate workflows, enhance decision-making, and create smarter user experiences. We also have a dedicated practice with deep expertise in FinTech and WealthTech, helping clients navigate complex challenges with scalable, secure software.

Custom FinTech software development services gives you a solution tailored specifically to your business’s needs and customers. Unlike off-the-shelf financial apps, a custom solution can include the exact features and integrations you require – from unique payment workflows to specialized analytics – ensuring a perfect fit. It also offers greater flexibility and scalability, allowing your platform to grow and adapt as your user base increases or regulations change. By investing in a custom fintech solution, businesses gain a competitive edge with a unique product that aligns with their brand and provides a superior user experience.

The cost of financial software varies widely based on complexity. Basic financial apps might start at $50,000, while medium-complexity solutions range from $100,000 to $200,000. Advanced software with custom features, AI, or blockchain can exceed $300,000. Factors influencing cost include security, platform choice (iOS, Android, web), and development time. Maintenance costs typically add 15-20% annually.

At Lengin, AI is built into our own workflows, not just the products we deliver. We actively use tools like OpenAI and custom chatbots to accelerate coding, documentation, and testing. This allows us to optimize performance, cut repetitive work, and boost delivery speed by 30–40% without compromising quality. By automating routine tasks, our engineers can focus more on architecture, problem-solving, and delivering value to clients.

Not at all. Many of our clients are non-technical founders or business leaders. We guide you through the process, explain AI concepts in plain language, and handle the technical complexity. Our fractional CTOs ensure alignment between business strategy and technical execution, so you can focus on growth while we take care of the tech.

We develop web apps, mobile apps, enterprise systems, SaaS platforms, CRMs, ERPs, customer portals, e-commerce solutions, and AI-powered tools. Every solution is tailored to your business goals, user needs, and industry requirements.

Custom solutions provide flexibility, scalability, and unique features that fit your exact workflows. Unlike generic tools, they grow with your business, help differentiate your brand through your unique approach, and give you a true competitive edge.

Yes. From idea validation and UX design to coding, testing, and long-term support — we cover the entire lifecycle. You get a single partner for all stages of development.

We analyze your goals, identify technical risks, validate assumptions, and define the best roadmap. This ensures your investment is focused on high-impact, low-risk solutions.

Absolutely. We help identify where AI fits into your processes, from automation to customer engagement, and provide proof-of-concepts to validate feasibility.

No. Our team explains everything in clear business terms. You get actionable recommendations, even if you’re not technical, and we translate them into execution plans.

We match your requirements within a few business days, connect you directly with vetted candidates, and ensure smooth onboarding into your workflow — typically completed within 2 weeks.

You can scale from a single engineer to a full team with backend, frontend, QA, DevOps, and even a fractional CTO for guidance.

Our developers adapt to your workflows, tools, and culture. Transparent communication and proactive reporting make collaboration seamless.