Toilet Rush is a free Android app developed by Nuthon IT Solutions Limited that serves as the ultimate toilet guide for Hong Kong. Whether you're a local or a tourist, this app can help you find nearby toilets with no restrictions, completely free of charge, and within walking distance. With an advanced search feature, you can filter your search by district and toilet facilities. If you come across a toilet that isn't listed, you can submit the information to the app.

Toilet Rush also allows you to view ratings of toilets before you decide which one to go, and you can even submit a comment if you think it's too nasty. Although the app supports offline mode, it will require an internet connection upon your first launch. Please note that roaming data charges may apply if you're a tourist using mobile internet, so it's recommended to use Wi-Fi whenever possible. Keep in mind that this app only shows toilets within Hong Kong.