WislaCode

Progressive Banking Super‑app

A major bank sought to consolidate several apps into a single digital product. A super-app that enables customers to manage their finances, mobile accounts, business operations, and everyday tasks. We led the design, development and integrations of native iOS and Android apps, enabling a fast launch and seamless scaling.

Client’s request and solution

The client aimed to consolidate multiple standalone apps into a single product with enhanced capabilities, including account and card management, instant payments and transfers, remote onboarding, access to public services, integration with a leading mobile operator, and support for business accounts. Key challenges included time‑to‑market, premium UX, complex third‑party integrations, security and scalability.

We proposed a native stack (iOS/Android) with a modular architecture, clear domain boundaries and feature flags to develop streams in parallel. We implemented a robust CI/CD pipeline, automated builds and tests, and a fast, iterative release cycle. We built secure integrations with a national e‑government identity service (eID) and video‑KYC with Liveness, plus a gateway to the mobile operator to bring finance and telco into one interface.

Result: 

First production release in 9 months. 100k+ users in the first month, 500k+ by month four, and 1.5M+ installs within the first year. Weekly updates post‑launch with rapid feature delivery and zero downtime.

Let's get in touch and discuss your case

Let's start negotiating and develop your own unique project. Our team is ready for the most daring projects.

Desktop‑like workspace with drag‑and‑drop
Desktop‑like workspace with drag‑and‑drop
We designed a “workspace” with shortcuts to core actions, reminiscent of a desktop. Users can configure quick actions and complete payments via drag-and-drop: simply move the card icon onto an action, and it’s done. This reduces cognitive load and time‑to‑action, lifting conversion for key flows (payments, transfers, top‑ups) and overall engagement.
Total personalisation and instant localisation
Users choose theme, background, icon colours, notification sounds and tone of voice (for example, more formal or more friendly). We enabled instant theme and language switching without performance loss using lightweight design tokens and optimised localisation. This made the app feel truly personal and improved active user retention.
Total personalisation and instant localisation
eID + video‑KYC with Liveness
eID + video‑KYC with Liveness
Integration with a national e‑government portal retrieves verified digital documents in seconds. Video identification complements the flow, with anti‑spoofing through Liveness checks. The result is a complete remote onboarding in minutes, compliant with security and regulatory requirements.
Mobile operator integration
The app exposes mobile balance, spend history, fee‑free top‑ups and service management. We harmonised API differences and data‑handling requirements, extracting and unifying duplicated logic. Customers now have one window for finance and connectivity, fewer context switches and higher NPS.
Mobile operator integration
One product for personal and business accounts + “collect money”
One product for personal and business accounts + “collect money”

Entrepreneurs manage personal and business accounts in one place, including statements, receipts, taxes, and multi-currency accounts. The “collect money” feature simplifies shared payments: create a request with an amount and participants, then share a QR code or link for instant transfers from friends or colleagues. Everyday scenarios are faster, boosting network effects.

Key Project Milestones

✔ 25+ team members assembled in 2 weeks
✔ Interactive prototype delivered in the first month
✔ First production release in 9 months
✔ Legacy app supported in parallel until complete migration
✔ New features every 2 weeks, complex integrations shipped in 1–2 sprints
✔ ~40% UI redesign delivered with zero downtime
✔ Stable CI/CD and automated testing, weekly releases

We combined sustained delivery speed, quality and flexibility as business priorities evolved, without compromising on security or user experience.

Key Project Milestones Banking SuperApp

Viacheslav Kostin

Viacheslav Kostin, CEO

20+ years of experience in managerial positions in IT and banking.

Viacheslav Kostin, CEO
Previous roles: CEO in IT, Director of Strategy and Marketing in Banking, Curator of Holding Banks, Head of Products and Project Office.
Education: MBA for Executives at IMD (Switzerland), Leading Digital Business Transformation (IMD). Provides consulting in strategy and digital transformation.

Pahomov

Vasil Pahomov, CTO

20+ years of experience as a developer, analyst, and solutions architect.

Vasil Pahomov, CTO
Designs resilient, high-load systems with multiple integrations for banks and financial institutions. Expertise in distributed storage and microservices architecture.
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Let's discuss your project's evolution.
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Let's discuss your project's evolution.
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