Mobile products you can rely on

Built with .NET (iOS/Android), MvvmCross, Azure, Stripe and Buform.

Self-employed people in the UK often manage sales, expenses and business banking across several disconnected tools. They needed one secure system to handle money in and out, keep an accurate financial record, and stay on top of regulatory obligations, without needing accounting expertise. That meant bringing card issuing, a unified ledger, payments and tax reporting together in a single, regulated mobile platform.

We designed and built a cross-platform application and Azure-based backend intended to act as a system of record for financial activity, where accuracy, auditability and data integrity are critical. The mobile apps were built with .NET for iOS and Android, sharing business logic across platforms. The platform was architected around UK financial regulation, including HMRC Making Tax Digital (MTD).

Delivered modules include:

• Prepaid business card issuing through Stripe, with in-app card management
• In-person card payments through Tap to Pay on iPhone and Android, turning the phone itself into the card terminal
• A unified ledger for recording and categorising income and expenses, with summaries and charts
• Secure authentication and identity verification (KYC)
• Encrypted local storage and biometric access control

Instead of the usual patchwork of separate tools, it brings payments, a business card and the books together in one secure app, designed around UK financial regulation.

Built with .NET MAUI (migrated from Xamarin.Forms) and Bluetooth LE.

Taxi drivers rely on this app every day to manage their work, communicate with in-vehicle equipment and accept payments. With Xamarin.Forms being retired, the app needed moving to a modern framework to stay current and supportable, alongside new capabilities: support for additional payment terminals and taxi-meter integration. It all had to happen while drivers kept working.

We took long-term responsibility for the application, modernising the platform and extending what it can do.

The work included:

• Migration from Xamarin.Forms to .NET MAUI for ongoing platform support
• Integration with taxi meters via Bluetooth LE
• Support for in-person payments through additional mPOS terminals
• A visual refresh and UI refinements as part of the migration
• Ongoing maintenance and performance improvements
• Structured release and production-monitoring processes for safe, confident updates

The app is in active use as part of daily taxi operations, and we have supported and improved it since 2021. Moving to .NET MAUI put it on a modern, supported platform, the taxi-meter and mPOS integrations expanded what it can do, and structured release and monitoring let it keep evolving while drivers keep working.

Built with Xamarin, SQLCipher and Google Maps SDK.

Healthcare professionals needed a secure, reliable tool to access clinical data, track appointments and manage daily schedules, while meeting strict HIPAA requirements for protecting patient health information, including encryption, authentication and protected data exchange. It had to support clinical practice across iOS and Android and meet strict US healthcare security standards.

We developed a cross-platform iOS/Android application for accessing clinical data, tracking appointment times and managing daily schedules. The work included:

• A private SDK integrated for efficient, secure communication with the REST API
• HIPAA-compliant protection of patient data, including an encrypted database (SQLCipher), auto-logout, and passcode and biometric authentication
• A real-time messaging module for instant communication between users
• In-app navigation using Google Directions API and Google Maps SDK to help users reach appointments
• A data-synchronisation module with configurable priorities, keeping user data available even without a connection
• In-app appointment signing for secure, convenient authorisation of clinical documents

Clinicians could reach clinical data and their schedules from their phones, even offline, with the security HIPAA requires, so their work kept moving without being tied to a desk or a connection.

Built with Xamarin and .NET, MvvmCross, F#, Realm and Buform.

Property managers needed a reliable mobile app for property administration, handovers and acceptance across commercial and residential properties. It had to support complex workflows, work reliably in the field with limited connectivity, and safely handle long-lived operational data across many users and properties. It also had to keep evolving over time without breaking existing processes or putting data at risk.

We built and evolved a cross-platform application used as a core operational tool for property-management teams, supporting field work, structured handovers and long-lived data.

It was originally built with Xamarin.iOS and Xamarin.Android using MvvmCross and a Redux-style architecture in F#, giving a solid foundation for long-term maintenance. Over time we modernised and expanded it: migrating to .NET iOS/Android for continued platform support, moving local storage from SQLite to Realm, and introducing safe data migration and versioning.

The work included:

• Complex handover and acceptance workflows, with structured data entry, defect tracking and image attachments
• Offline-first operation with background synchronisation, for field work without continuous connectivity
• A document-generation system for handover and acceptance reports, including PDF rendering and structured protocol output
• Flexible, reusable form components across many screens and input types, reducing duplication and maintenance effort
• Secure multi-user support with per-user data isolation and access controls
• App-level security such as PIN protection after inactivity and controlled session handling

We first built it in 2017, and it remains in production with property-management teams today. Incremental modernisation reduced maintenance risk while preserving existing workflows and data, and it continues to support complex, real-world property operations with reliable offline behaviour and secure data handling.

Built with Flutter, with end-to-end encryption.

Self-employed accountants and their clients needed a secure way to communicate, exchange documents and manage tax-related information, outside of email and consumer messaging apps. Existing workflows relied on fragmented tools that made it hard to keep conversations, documents and financial context in one place while meeting data-protection expectations. They needed a single system, built for long-term use and strong data protection.

We built a cross-platform application for iOS and Android using Flutter, delivering a consistent experience across platforms and enabling efficient iteration over time.

The work included:

• Secure real-time messaging between accountants and clients
• Encrypted document and message exchange
• End-to-end encryption to protect sensitive financial data
• Mobile document scanning and upload
• Biometric and passcode-based access control

We developed and supported the application over several years, allowing it to evolve alongside client and regulatory expectations.

The app became a primary communication and document-exchange tool between accountants and their clients: a secure, structured alternative to email and consumer messaging. Built in 2020, it is still in use today.

Built with Xamarin.Forms.

A coach operator runs a high-traffic ticket-booking app. Under peak load, its performance and stability had slipped, and that was starting to show in the app-store ratings. The job was to bring it back to a fast, stable experience across iOS and Android.

Taking on the existing Xamarin.Forms app, we focused on performance and stability:

• Resolved the issues affecting stability under load
• Improved performance for a faster, smoother experience at peak times
• Refined the interface to make booking and journey management easier
• Ran thorough testing to hold the app to a consistent standard

The app is back to a fast, stable experience for booking and managing tickets, planning journeys and tracking travel, with a clearer interface and improving app-store ratings across both platforms. It remains in use today.

Built with Xamarin and .NET, Realm.

Neighbours in a residential property needed one app to manage day-to-day building life: tracking maintenance, communicating with each other, and keeping shared financial records. The existing app had to keep working reliably as it took on more.

We modernised and extended the existing application. The work included:

• Migrating from Xamarin to .NET for continued platform support
• Moving local storage to Realm for more efficient data handling
• Adding maintenance tracking, neighbour communication and financial-record features
• Resolving outstanding issues and improving overall performance

Residents now keep maintenance, neighbour messaging and shared records in one place, on a faster foundation that can keep growing.

Built with Xamarin.

An enterprise business needed a mobile tool to create, deploy and manage workflows, and it had to integrate cleanly with the systems already in place.

We built a cross-platform app that renders backend-defined workflows on mobile. The work included:

• Secure authentication and access control
• A server-communication layer that integrates with existing enterprise systems
• Flexible, template-based workflow screens driven by backend configuration
• Thorough testing before release

Teams run their workflows straight from a phone, and because the screens are driven by backend configuration, the business can change a process without shipping a new app.

Built with Xamarin.

A training organisation needed an interactive mobile platform for its people to browse and complete courses, track their progress and stay motivated. It had to be built from scratch and give a consistent experience on both iOS and Android.

Starting from scratch, we built the app for iOS and Android. The work included:

• A clear interface for browsing and accessing the course catalogue
• Progress tracking to keep learners moving through the material
• A consistent experience across both platforms
• Thorough testing across both platforms

The organisation's people now carry the full course catalogue on either platform, picking up each course exactly where they left off.

Built with Xamarin.Forms.

Students and educators relied on an existing education management app to access learning resources and manage their activities. As it continued in active service, it needed to stay stable across iOS and Android, perform well, and have its interface refined to stay easy to use.

With the app already in active service, we focused on stability and long-term support:

• Fixed the bugs behind the instability and slow performance
• Ran UI tests through App Center to confirm correct behaviour across devices and scenarios
• Tuned performance and refined the interface so the app is easier to use

Students and educators got a faster, steadier experience across the devices they actually use.