China’s digital ecosystem is advanced but hard for foreigners to access. I built a free web app to bridge the gap for payments, travel, and language

Hi everyone,

I’m originally from China but live abroad. Recently, I noticed a huge friction point for international tourists visiting home. The local digital ecosystem (WeChat, Alipay, booking apps) is advanced, but it’s completely alien if you don't read Chinese.

I saw travelers getting stranded at airports or unable to buy food because they couldn't navigate the local "Super Apps."

To solve this, I spent my weekends building a free PWA (Progressive Web App). I chose a PWA so travelers on roaming data wouldn't need to download a heavy app store file.

The goal was to build an all-in-one "Survival Kit" that bridges the language gap. It currently includes:

• Visa Checker: Instant logic based on passport type.
• Audio Flashcards: One-tap buttons to "speak" Chinese for taxis and emergencies.
• Survival Tools: Step-by-step integrations for setting up local payments (Alipay/WeChat), buying eSIMs, and booking trains/flights.
• Multi-language Support: I added 8 languages since English isn't the only barrier.

I’m trying to keep the app lean but useful. For those who have built travel utilities: What is the one "non-obvious" feature you think is essential for a survival guide like this?

Thanks for the feedback.