TwoDollarPlus – Accessible Smart Tourism for Elderly Travelers

Inspiration

Tourism is one of Hong Kong’s strongest assets, yet elderly travelers are often excluded. Conventional apps use small fonts, complex menus, and ignore accessibility. Language barriers and limited emergency support add risk. We set out to solve this by building an AI-powered, accessibility-first tourism platform tailored for seniors.

What it does

TwoDollarPlus empowers elderly travelers with:

Accessible Attractions – curated destinations with MTR station and wheelchair-access info.
Instant Translation – large-text Cantonese/English phrases with audio playback.
Emergency Support – one-tap access to police, hospitals, and family location sharing.
Senior-Friendly Planning – clear itineraries, reminders, and health/weather alerts.

This creates a safe, inclusive tourism experience while capturing the fast-growing silver travel economy.

How we built it

Frontend: Next.js 14 + Tailwind CSS for responsive, accessibility-first design.
Backend & Data: Sequelize ORM with SQLite/MySQL, Iron Session for secure storage.
Internationalization: next-i18next for seamless tri-language support (Traditional Chinese, Simplified Chinese, English).
AI Development: Kiro IDE accelerated coding while enforcing WCAG 2.1 AA accessibility.
Testing: Automated Jest + axe-core accessibility checks to ensure compliance.

Challenges

Balancing simplicity for seniors with rich app functionality.
Implementing full WCAG compliance across multiple languages.
Designing location-sharing and emergency features without compromising privacy.

Achievements

Delivered a working prototype with attractions, translation, and emergency modules.
Verified WCAG 2.1 AA compliance with automated and manual testing.
Early senior testing confirmed strong usability and trust: “Finally, an app designed for me.”