Multilingual courier mobile application working online and offline across devices

Case Study - European parcel logistics

Mobile application for couriers

A multilingual system that works online and offline on various hardware platforms

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About the client

A european logistics company which invested in the development of a network of parcel machines. Thanks to systematic development and the introduction of innovations such as a customer application, the company boasts thousands of parcel machines open 24/7 throughout the country. By shortening the delivery time and reducing transport costs, the brand has largely contributed to the popularization of this service in Poland.

Client

European parcel logistics

Location

Europe

Services

Mobile app development

Technologies

.NET

Xamarin

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Warehouse with shelves and employees from above

THE CHALLENGE

Scaling Parcel Logistics

Due to the company’s development and an increase in the number of shipments handled, the client needed a more modern and efficient application for couriers. The existing application worked only on specialized scanners. The new application must also support regular smartphones, processing large amounts of data in close integration with the rest of the client’s system. Offline operation, event queuing and automatic synchronization with the central database after restoration of the Internet connection are also required. As the program is to be used 24/7 by couriers, fast and failure-free operation is a necessary condition.

Boxes in a living room
Delivery worker scanning a barcode on a package

THE SOLUTION

Cross-Platform Courier App

The new application was created from scratch using the latest version of Xamarin Forms. According to the specification, the application works both on smartphones and on different models of laser scanners, for which individual driver packages have been created. The application supports multilingualism and system communication with different technologies. In order to verify the stability and speed of operation we have performed many unit tests and automatic GUI tests.

automated mail sorting plant
Delivery worker outside his van surrounded by large boxes filling a form

 THE RESULTS

 Reliable 24/7 Operations

The application was successfully deployed, fully meeting the customer's expectations. It operates efficiently on both smartphones and laser scanners, providing 24/7 support for couriers with offline functionality and multilingual support.

Picture of a desk with a plant, a cup of coffee, a hand holding a smartphone and part of a notebook

FAQ

01
How do courier applications work when there is no Internet connection?
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Modern logistics operations cannot depend on constant network availability. The application stores events locally, queues critical actions, and automatically synchronizes data with central systems once the connection is restored, ensuring uninterrupted courier workflows.

02
Why replace dedicated scanner devices with a smartphone-based solution?
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Supporting standard smartphones reduces hardware costs, simplifies device management, and makes scaling operations much easier. At the same time, the application can continue to support specialized scanning equipment where required.

03
What should a logistics company consider when building a mobile application for thousands of daily deliveries?
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Reliability, performance, offline capabilities, and seamless integration with existing logistics systems are critical factors. The application must handle large volumes of data, support real-time operations, and remain stable under continuous 24/7 use by field teams.

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