Customer applications
Mobile experiences for customers to discover, purchase, book, manage, and get support.
Trusted by:
01 / Applications
Mobile products designed for real use
We build mobile applications as complete products, connected to the data, services, and operational tools behind them.
Business & field tools
Role-based apps that move operational workflows out of spreadsheets and disconnected tools.
Commerce & marketplaces
Product discovery, carts, payments, accounts, orders, and marketplace workflows.
Booking & service apps
Scheduling, availability, notifications, payments, and customer self-service in one flow.
Connected mobile portals
Secure access to CRM, ERP, license, maintenance, and other business-system data.
AI-enabled applications
Practical AI capabilities integrated into mobile journeys and the systems supporting them.
02 / Selected work
Mobile experiences connected to real operations
Two products showing how mobile interfaces, business workflows, and supporting systems come together.
Mobile & web application
IMR
A centralized CRM and customer portal for licenses, maintenance, quotations, and support workflows.
Customer portalLicense managementSupport workflows
View case study →
Mobile commerce application
Registry
A wedding registry experience bringing product gifts, cash funds, and registry planning into one mobile flow.
Gift discoveryCash fundsRegistry management
View case study →
03 / Capabilities
From product idea to a release-ready application
Product discovery
Define users, jobs, workflows, constraints, and an appropriate product scope.
Mobile UX/UI design
Design clear journeys and responsive interactions for real devices and usage contexts.
Application engineering
Build cross-platform or native applications based on product and technical needs.
Backend & admin systems
Create APIs, data models, permissions, and operational tools behind the mobile experience.
Integration & quality
Connect existing services and validate critical behavior across supported devices.
Store submission
Prepare and submit the application to Apple App Store and Google Play.
04 / Platforms & technology
The right delivery approach for the product
We select cross-platform or native development based on the product experience, integrations, performance needs, and long-term roadmap.
Cross-platform
React Native · Flutter
A shared product foundation for efficient iOS and Android delivery.
Native iOS
Swift
Native Apple platform development when the product calls for it.
Native Android
Kotlin
Native Android development for platform-specific requirements.
Connected product stack
ReactNext.jsNode.jsNestJSPostgreSQLSupabase
05 / Process
A connected path from concept to the stores
Understand
Clarify the audience, workflows, business goals, and technical context.
Design
Shape the user journey, interface, architecture, and release scope.
Build
Develop the mobile app and connect the services it needs.
Validate
Test critical journeys, devices, integrations, and release builds.
Release & improve
Submit to the stores and continue improving the product as agreed.
06 / Why Nextchain
One accountable team across app and backend
Built directly by Nextchain
The people making product and technical decisions stay close to delivery and communication.
Client-owned source code
You retain ownership of the source code delivered for your project.
More than the app screen
Mobile engineering stays connected to APIs, admin tools, data, integrations, QA, and deployment.
Global collaboration
Teams across South Korea, Vietnam, Canada, and the United States support international delivery.
“
The collaboration with Nextchain has been truly effective, meeting our requirements precisely and translating them into a practical solution. Their pivotal role in complementing our game development journey cannot be overstated.
Sogon LeeSogon Labs CEO
“
Working with Nextchain Tech was a game-changer for our business. They delivered a solution that not only met our needs but exceeded our expectations.
Yonghyun Kim01republic CEO
“
Thanks to Nextchain's remarkable expertise and technological prowess, we were able to cut costs and significantly enhance the user experience. We anticipate our business will thrive even further.
Taewoong JungArtish Online team manager
07 / FAQ
Before starting a mobile application project
Does Nextchain build for both iOS and Android?
Yes. We develop iOS and Android applications using React Native, Flutter, Swift, or Kotlin according to the product requirements.
Should our app be cross-platform or native?
That depends on the experience, platform integrations, performance requirements, roadmap, and existing systems. We assess those constraints before recommending an approach.
Can the app connect to our existing backend?
Yes. We can integrate with existing APIs and business systems, or build the backend and admin tools required by the mobile product.
Can Nextchain take over an existing application?
Yes. We can review the current codebase, architecture, store setup, and product requirements before defining the appropriate scope.
Who owns the source code?
You retain ownership of the source code delivered for your project.
Does Nextchain handle store submission?
Yes. We can prepare and submit release builds to Apple App Store and Google Play as part of the agreed project scope.
Have a mobile product or workflow in mind?
Tell us who the app is for and what it needs to accomplish. We’ll review the requirements and continue the conversation from there.