Daily greeting-image service for elderly Thai users, delivered through a LINE Official Account.

Live: sawasdee.madebydin.com · LINE OA: @sawasdee

Overview

Sawasdee is a consumer subscription product built around a simple daily ritual: every morning at 6 AM, users receive a fresh "สวัสดี" (good morning) greeting image with a blessing for the day, delivered straight to their LINE chat. The whole experience is designed for older, non-technical Thai users — add the LINE OA once (often with help from their children), then receive and forward beautiful daily images in a couple of taps.

The landing page is the marketing front-end that explains the product, drives QR/add-friend conversions, and presents the pricing tiers.

Key Features

• Daily delivery — A new, unique greeting image with a day-specific blessing pushed to LINE every morning at 6 AM.
• One-tap forwarding — Long-press an image and forward it to friends or groups; built around how the target audience already shares content.
• Festival specials — Themed images for Thai festivals (Songkran, Loi Krathong, New Year, Khao Phansa, Valentine, Halloween).
• Personalized images — Premium/Ultra users send their own photo into the chat and get it returned with a styled greeting and blessing applied.
• Gifting model — Designed so adult children can set it up and pay on behalf of their parents.

Tech Stack

• Frontend: Next.js (Next Image optimization, responsive landing page)
• Messaging / delivery: LINE Messaging API + LINE Official Account
• Onboarding: LINE add-friend QR code and deep link (lin.ee)
• Hosting: Deployed under madebydin.com infrastructure (NGINX reverse proxy, SSL)

My Role

Designed and built the product end-to-end — product concept, LINE OA bot, scheduled daily image delivery, personalized image pipeline, and the Next.js marketing landing page.