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Addsoft

Services

What we do

Take the whole project or just one slice of it — design only, build only, whatever you need. Tell us where you want to start.

Application software development

Internal business systems, customer-facing web services and multi-tenant SaaS. The work ranges from moving a spreadsheet-and-paper process onto a screen to AI search that runs entirely on your own servers.

What's included

  • Business management systems (intake, assignment, settlement, permissions)
  • Multi-tenant SaaS with single sign-on (SSO / OIDC)
  • Customer-facing web services and admin back-offices
  • Blog and content platforms with SEO, ad revenue and visitor analytics
  • On-premise delivery with one-click install and automated updates
  • In-house document search AI (on-premise RAG) and workflow automation apps
  • Windows desktop apps (WPF, WinForms)
  • Device and network integration (SNMP, Syslog, SOAP) and Windows drivers

Mobile app & game development

Mobile games in Unity and apps built on web technology — including field apps that need phone features like NFC and push notifications — through store submission and post-launch updates.

What's included

  • Unity-based Android and iOS games and VR content
  • TWA and Capacitor apps wrapping an existing web service
  • NFC tag integration and FCM push notifications
  • Store submission, review handling and build pipelines
  • Post-launch updates and metrics-driven improvement

E-commerce & logistics

Not just listing products and taking orders — making orders, settlement, delivery and warehouse stock actually fit together.

What's included

  • Own-brand stores and marketplaces with product and order management
  • Full order state transitions through cancellation, refund, return and exchange
  • Payment gateway, carrier tracking and KakaoTalk notification integration
  • Warehouse management (WMS) with a stock ledger and storefront reservations
  • Operating structures compliant with Korean e-commerce regulation

Technical consulting & maintenance

We also take on systems that are already running — reading code nobody handed over, and getting it back to a state you can change safely. That includes large jobs like moving a live service to a new database.

What's included

  • Taking over and maintaining existing systems
  • Maintaining legacy C/C++ and MFC programs and moving them to modern platforms
  • Incident response, performance tuning and security review
  • Live database migrations (e.g. MSSQL → MySQL)
  • Advice on technology stack and architecture choices
  • Server and deployment setup (IIS, Docker, CI)
  • Operations monitoring — SSL certificate and domain expiry, mail server health alerts

How a project runs

Every project follows the same steps, however small. Each one is signed off before the next begins.

  1. STEP 01

    Consultation & requirements

    We listen to what you need and how you work today. If it isn't defined yet, we define it together here.

  2. STEP 02

    Design & estimate

    We map the screens and the data model, lock the scope, and give you a schedule and a cost.

  3. STEP 03

    Development & check-ins

    We build feature by feature and show you working screens as we go, so course corrections happen early.

  4. STEP 04

    Acceptance & release

    We test with real data and deploy to production, with handover documentation and account setup included.

  5. STEP 05

    Operation & maintenance

    After release we stay on for incident response, new features and performance work.

Have something you want built?

A rough idea is enough to begin with. We can work out the shape of it together.

Get in touch