This is an App that manages one’s own hotel check-in records and is especially helpful for those who take business trip frequently. It may record your hotel check-in for later inquiry. It is really very convenient. It is a standalone App, so data is only recorded locally, but not uploaded to any server and we will not store any content that you have recorded in the app. if you have any questions about how to use the functions, please click the help button in the app.there are a full tutorial will teach you how to use it.