TTHotel Guest is a free Android app developed by Smart Lock. This app belongs to the Utilities & Tools category and allows guests to open the door of their hotel room with their mobile phone.

The app is simple to use: once guests arrive at the hotel, they can download the app and connect it to their room. The app generates a unique QR code that guests can scan with their phone's camera to unlock the door. This eliminates the need for physical room keys, which can be easily lost or forgotten.

TTHotel Guest is a convenient and innovative solution for hotels looking to provide a seamless guest experience. It is especially useful for guests who prefer to travel light and minimize the number of items they carry. Overall, TTHotel Guest is a practical and user-friendly app that offers a unique solution to an age-old problem.