ToSim App Redesign: Elevating Convenience Store Shopping Experience

- Swift
- Kotlin
- Flutter
- Firebase
- Xcode
- Jenkins
Sim23 by the numbers
Sim23 is your convenient market.
About the client & the story behind them
Sim23 has revolutionized the convenience store format, redefining the concept beyond mere quick stops for essentials. Their establishments are vibrant hubs designed to cater to the fast-paced lifestyles of today’s consumers. With an emphasis on accessibility and variety, Sim23 stores offer a diverse array of ready-to-eat meals, beverages, and everyday necessities, all under one roof. Their commitment to convenience is further exemplified by their strategic locations and flexible operating hours, ensuring they are always within reach when needed most.
At the heart of Sim23’s success lies its innovative mobile application, a cornerstone of the modern shopping experience. Used almost daily by a loyal customer base, the app transcends traditional transactional functions. It seamlessly integrates gamification elements, making shopping not just convenient but also enjoyable and rewarding. Through the app, Sim23 aims to enhance customer engagement and loyalty, offering personalized experiences tailored to individual preferences and habits.
Despite the app’s popularity, Sim23 encountered challenges with its initial development partner and made a decision to seek a new vendor to elevate its digital presence. Turning to us, Sim23 embarked on a collaborative journey to reimagine their app and deliver an enhanced customer experience. This shift marked a pivotal moment in Sim23’s evolution, reaffirming its commitment to innovation and customer satisfaction.

Request to Devlight
Sim23 approached us with an existing application, seeking our expertise for a comprehensive UI/UX audit and a complete redesign. Their motivation stemmed from the unveiling of a new brand book and the overarching redesign of the SIMI brand. With a keen eye on brand consistency and modernization, Sim23 aimed to align their digital presence with their refreshed brand identity. In addition to the aesthetic overhaul, Sim23 expressed a need for the introduction of new functionality and further development of the application.
This expansion was driven by their commitment to staying ahead of evolving consumer expectations and enhancing the overall user experience. By entrusting us with this multifaceted task, Sim23 demonstrated their confidence in our ability to deliver innovative solutions that would not only reflect their brand values but also propel their digital presence to new heights.

Challenges and Limitation
The task of redesigning posed significant challenges, primarily due to the intricate structure of the existing code, particularly in its handling of visual elements. Achieving a seamless transition in line with the new brand identity required a complete overhaul of every element, demanding meticulous attention to detail. It was imperative to strike a balance between innovation and familiarity, ensuring that the redesign did not alienate existing users while also appealing to the targeted audience.
Moreover, the dynamic nature of Sim23’s business, characterized by frequent store launches, added another layer of complexity. The need to continuously roll out new releases while maintaining stability for existing users posed a significant challenge. Balancing the demands of ongoing development with the stability of the app required careful coordination and strategic planning. Despite these hurdles, our team remained committed to delivering a solution that not only met Sim23’s evolving needs but also exceeded user expectations.
How we did it — solutions, approach, methodology
Our journey began with a comprehensive Heuristic Analysis to conduct a UI/UX audit of the existing application. This crucial step allowed us to pinpoint areas for improvement and ensure that the redesign aligned with best practices in user experience and interface design. The client’s in-house design team played a pivotal role, incorporating all feedback and insights derived from the heuristic analysis to refine the app’s design further.

Adopting the Kanban methodology was a strategic choice, given the project’s nature. With the primary focus on support and development rather than building an application from scratch, Kanban enabled us to manage the workflow efficiently, ensuring flexibility and timely delivery of new features and enhancements. This approach was particularly suited to the iterative development and backend optimization processes.
On the backend, our efforts were concentrated on optimizing the system to ensure swift processing of transactions, including the allocation of bonuses to customers. This optimization was critical to enhancing user satisfaction and ensuring a seamless experience within the app.
Testing was an integral part of our process, rigorously conducted to ensure that the redesigned application met our high standards of quality and reliability. This phase was essential in identifying and addressing any potential issues before the public release.

The culmination of our efforts was the successful redesign and release of the application, marking a significant milestone in its evolution. However, our journey doesn’t end here. We continue to work on the app’s development, driven by our commitment to delivering an exceptional user experience and supporting Sim23’s growth and success in the ever-changing retail landscape.
Future challenges
As we look ahead, the horizon is filled with promising challenges for the application, particularly in the realm of enhancing the loyalty program. Our vision is to dive deeper into gamification, creating an even more engaging and rewarding experience for users. This initiative aims to not only retain our current customer base but also attract new users by offering an innovative and interactive way to earn and redeem rewards.
Additionally, a significant focus will be placed on expanding the application’s functionality to better serve the convenience stories that define Sim23. By doing so, we intend to elevate customer interaction with the network, making every shopping experience more seamless, personalized, and enjoyable. These future endeavors are guided by our continuous commitment to innovation and excellence, ensuring that Sim23 remains at the forefront of the convenience retail industry.
KEY FEATURES AND VALUE








Final design
Here are some of the final design screens that we want to share with you.
Customer feedback

We are thoroughly pleased with our partnership with Devlight. Their prompt response times, round-the-clock manager availability, comprehensive support throughout the development process, and the team’s exceptional professionalism have been instrumental for the successful execution of our project. The mobile app that the Devligh team has been working on, has undergone a complete transformation, now operating smoothly, conveniently, and intuitively. Our journey doesn’t end here; we’re excited to continue our collaboration. We would recommend Devligh to others, as their team sets the benchmark for outstanding service and superior quality products.