YOUR PROVEN RETAIL TECH DEVELOPMENT PARTNER
RETAIL TECH SOLUTIONS
KIOSK SOFTWARE DEVELOPMENT
We design Android-based self-service kiosk systems that streamline checkout, boost upselling, and connect with loyalty programs in real time.
POS SOFTWARE DEVELOPMENT
Custom cashier POS apps built on Kotlin for fast, stable transactions – seamlessly integrated with ERP, CRM, and fiscal systems.
PAYMENT INTEGRATION & FISCALIZATION
We connect SoftPOS (Tap-to-Pay), external terminals (Castles, Ingenico), and online payment providers (LiqPay, monobank, Sense). Full support for fiscalization (Checkbox, Vchasno, Cashalot).
MDM & DEVICE MANAGEMENT
We enable centralized control over hundreds of kiosks and POS devices – remote setup, updates, and monitoring without downtime or vendor lock.
LOYALTY & GAMIFICATION SYSTEMS
We create branded loyalty ecosystems – missions, levels, points, and digital cards – to increase engagement and repeat purchases.
HARDWARE INTEGRATION & SDK SUPPORT
We integrate official Sunmi peripherals (printers, scanners, NFC, cameras) using certified SDKs for stability and scalability across retail networks.
Technology stack
We build Android-based retail systems using modern open-source and enterprise technologies – ensuring reliability, scalability, and seamless integration across your retail network.
Self-Service Kiosks
Problem: Long queues, slow checkout, and high staffing costs frustrate customers and limit throughput during peak hours. Traditional POS setups can’t scale fast enough or deliver a smooth experience.
Solution: An Android-based self-checkout kiosk (Sunmi K2) with large touch display and loyalty login. Customers scan, pay, and receive their receipt within seconds — reducing cashier workload, boosting hourly transaction volume, and improving satisfaction.
Cashier POS Systems
Problem: Traditional cashier systems are slow, difficult to update, and expensive to maintain. Staff training takes too long, and downtime during updates leads to lost sales and customer frustration.
Problem: A custom Android-based POS (Sunmi T2s) tailored to your business processes. Fast, intuitive, and API-connected with ERP, CRM, logistics, payments, and fiscal systems. Works offline for transaction continuity and syncs automatically once online.
SELF-SERVICE POS SOFTWARE
Problem: Restaurants, cafés, and small-format stores often struggle with long queues and slow service during peak hours. Traditional cash desks are costly to expand, and every new station requires new hardware and complex setup.
Problem: An Android-based self-checkout platform for Sunmi Flex that transforms any display into a full-featured POS. Customers can scan, edit carts, pay via SoftPOS (Tap-to-Pay) or external terminals, and receive printed or e-receipts – all through a fast, intuitive interface.
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INTEGRATED POS & SOFTPOS SOLUTIONS
Problem: Retailers often rely on fragmented payment setups — separate terminals, outdated integrations, and manual reconciliation. This increases operational costs, slows down checkout, and creates friction for both staff and customers.
Problem: A unified payment system with three integration scenarios for self-checkout kiosks and POS terminals. The Android-based solution supports built-in SoftPOS (Tap-to-Pay), external bank terminals (Castles, Ingenico), and QR/online payments (LiqPay, Sense, monobank) — all synchronized in real time with ERP and fiscal systems.
Our approach
RELIABILITY & ORCHESTRATION
We build production-grade Android systems with offline-first logic, device monitoring, and seamless synchronization across retail networks.
QUALITY & TESTING
Every kiosk and POS app passes automated QA, performance benchmarks, and integration checks with ERP, CRM, and fiscal systems.
PERFORMANCE & COST CONTROL
Optimized Kotlin architecture ensures fast load times, minimal latency, and reduced total cost of ownership (TCO) across thousands of devices.
OBSERVABILITY & OPERATIONS
Real-time monitoring via MDM dashboards – device health, app status, transactions, and security alerts across all stores.
RELEASE & UPDATE MANAGEMENT
OTA updates, CI/CD pipelines, and versioned rollouts ensure smooth upgrades with zero downtime or store visits.
SECURITY & COMPLIANCE
Role-based access, audit logs, and PCI DSS/GDPR compliance – protecting payment data and retail operations at every level.
SUPPORT & SLA
We provide long-term support and service agreements, proactive monitoring, and guaranteed uptime under enterprise SLAs.
Design the system architecture: define kiosk/POS roles, integrations (ERP, CRM, CMS), and connected services (MDM, certificates, policies).
Integrate peripherals — printers, scanners, status lamps — and connect payment modules via App2App NFC, external POS SDK, or QR payments.
Roll out the software on Sunmi devices with centralized MDM control, applying security policies and OTA updates across locations.
Enable Edge controllers and WAF protection to ensure data integrity, network isolation, and compliance with fiscal standards.
Monitor device performance, add new stores, and manage updates remotely through the same architecture — stable, scalable, and cost-efficient.
What our clients say
C-level executives, product managers, tech leads, and founders from around the world have appreciated our help in delivering world-class products under strict deadlines.
The feedback we get from our clients is consistent. We take real ownership.
The mobile applications were well-received and caused an uptick in the partner’s revenue. Devlight was a true partner that was always ready to help resolve problems. They were attentive and proactive about offering solution suggestions. The project manager excelled at coordinating multiple teams.
When we were looking for a partner for our product research task, experience in similar tasks was essential for us to, as well as experience in the field of financial technologies. Devlight fully met our requirements, and cooperation with them exceeded all our expectations.
Cooperation with Devlight is essential for Sense Bank. Their swift augmentation of our team with skilled professionals, commitment to quality, and innovative approach led to the successful development of our digital banking app. Devlight’s expertise, effective communication, and after-hours dedication impressed us profoundly, making our collaboration a standout success. Our cooperation continues to thrive, and we’re building the future. Since it makes sense.
Devlight has delivered the API documentation and initial architecture, enabling the client to move forward with the project. The team has an effective workflow and ensures transparency and alignment through constant communication and regular status meetings. Their proactivity stands out.
Devlight has delivered a mobile app with all the features the client required, helping them achieve 15,000 sales through it thus far. The team has delivered work on time, and they’ve been effective, collaborative, and great at providing advice. Moreover, they’re flexible and highly experienced.
Devlight has successfully delivered a fully functional app on time. The team has managed the project well and maintained an exceptional quality of work throughout the engagement. Devlight is interested in solving the client’s needs. Overall, the client was highly satisfied with the engagement.
Two-thirds of test users have responded positively to app prototypes, citing the platform’s ease of use and speed. Taking a Scrum approach to the work, Devlight has communicated regularly so far and acts quickly on feedback. The team takes an entrepreneurial approach the work, and they are willing to take risks
Devlight has a talented design team, much better than any other UI/UX mobile designers I’ve ever worked with.
Devlight has developed quite high-load projects and this was one of the key points – for us to find the partner who knows how to build a high-load application architecture. Also, one of the benefits of Devlight is the cool design sprint approach for quick entry and understanding of business processes and synchronization of actions of the customer’s team and internal team before starting work
Devlight’s team was flexible and fast, and communication was simple. The apps work well, and the Devlight team held to all deadlines. The team is talented, and they utilize non-mainstream, top-notch techniques.
The basis of a successful project is the experience of the team that’s why we chose Devlight. They are an enthusiastic team with a professional approach in the implementation of large-scale projects from the beginning and development strategy. The main thing is to be on the same wave of understanding the value of the product and create a unique product for users step by step!
Devlight developed an AI platform for a graduate education recruitment company. Their flexibility and technical knowledge impressed us.
I appreciate that Devlight takes the time to consult with us and doesn’t just provide us with what we ask for. Devlight has improved our mobile apps significantly. Within 90 days of launching, there’s been a 200% increase in Android downloads and a 300% increase in iOS downloads.
Devlight delivered a detailed style guide and UI kit, ensuring consistency in future updates. They also restructured workflows and improved efficiency. The team was proactive in addressing challenges and ensuring timely delivery. Their commitment to understanding the client’s needs was exemplary.
Thanks to Devlight, we’re ready to launch the app for end users. They delivered the project on time and to our expectations. Devlight also ensures excellent communication via email and demo and status meetings. Their expertise, meticulousness, and cooperation are commendable.
The team not only brought our idea to life but also helped us focus on the key features that would bring the most value to users. They proactively suggested solutions that made the platform user-friendly and efficient.
The web application is currently in beta testing and has received favorable initial feedback on the quality of the designs. Devlight was adaptable and stuck to every deadline.
The project is currently ongoing, but we are already seeing positive results from the implemented features. The “Liter Wallet” and other new functionalities have been well-received by our customers, and we anticipate further improvements and positive feedback as the redesign progresses.
Awards
Our stellar services and products have earned us a remarkable reputation and numerous awards.
app winner
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