UX/UI design for web and mobile apps
CODEMONDAY is a UX/UI design agency in Bangkok, inside a software house. We design websites, web apps and mobile apps, then build them with the same team. We designed and built MotorJoy and TravelJoy for Sompo, and the BDMS Medical Record Service. We still look after all 3 under MA and CR. We have delivered 100+ projects.

UX and UI
UX (user experience) is how clear and easy a product is to use, from the first screen to the finished task. UI (user interface) is what people see and touch on each screen: layout, type, colour and buttons.
What we design
Buying flows
Step-by-step flows from choosing to paying, like picking a car and comparing plans on Sompo MotorJoy.
Long forms, made clear
Complex requests split into clear steps, like the 8-step BDMS medical record request with OTP and QR code tracking.
Product configurators
Live-preview tools, like the CASE CLUB Design Studio, where customers add text, colours and stickers to a phone case.
Back-office screens
Screens for staff who work in them all day: queues, approvals and dashboards that keep each task clear.
Mobile app design
iOS and Android screens designed for one React Native codebase, so both apps look and work the same.
Thai and English layouts
Layouts that read well in both languages, with Thai line breaks checked on every screen size.
Designs in production

Sompo MotorJoy
Client Sompo Insurance (Thailand) PCLUX/UI by CODEMONDAY: customers pick their car step by step and see the price for that exact car.Open the case
BDMS Medical Record Service (MRS)
Client Bangkok Dusit Medical Services PCL (BDMS)UX/UI for an 8-step patient request with OTP and QR code tracking, plus the staff back office.Open the case
CASE CLUB
Client Com7 PCLA storefront and Design Studio where customers see their text, font and colour on the case at once, with the price.Open the case
Sompo TravelJoy
Client Sompo Insurance (Thailand) PCLUX/UI for a flow where customers enter a trip, compare plans and scan an ID card instead of typing.Open the case
How we design
Start from the task
We map what each user needs to get done, then design the shortest clear path to it.
Designers next to engineers
Our designers work with the engineers who build the product, so every screen is checked against the real system early.
Review in Figma
Your team reviews and comments on every screen in Figma before the build starts.
Real Thai and English copy
We design with real text in both languages, because Thai has no spaces between words and wraps differently.
How UX/UI design pricing works
Cost depends on the number of screens and user flows, and on whether we also build the product. After a free first consultation, we send an assessment and a quotation.
Fixed scope
For a clear brief. We agree the scope, the price and the plan before the build starts.
Monthly team
For a product that keeps changing. Our team works through your roadmap each month, with support included.
MA and CR after Go-live
MA (maintenance) keeps the system healthy under an agreed SLA. A CR (change request) adds a new feature and is quoted on its own.
Technology we use
Figma | Adobe XD | React | Next.js | React Native | Tailwind CSS | Ant Design | MUI
Frequently asked questions
What is the difference between UX and UI?
UX is how easy a product is to use from start to finish. UI is how each screen looks and behaves. Good design needs both.
What are the steps in a UX/UI design project?
We start with the goal and the users, then map the flow and design the screens. Your team reviews them in Figma, and we hand them to the build team.
What files do we get at the end?
You get the Figma design files for every screen and flow your team approved, ready for development.
What is responsive web design?
Responsive web design means one site that adjusts its layout to every screen size, from a phone to a wide monitor. MotorJoy and the BDMS request service are designed for both phone and desktop.
How much does a UX/UI design project cost?
It depends on the number of screens and flows, and on whether we also build the product. After a free first consultation, we send an assessment and a quotation.
Do you design for Thai and English?
Yes. We design with real Thai and English text, since Thai wraps lines differently. CASE CLUB runs in both languages.
Talk to an engineer
Call, message us on LINE or leave your details, and our team will get back to you.
