Zip inquiries at home and abroad, Yaku Technology Co., Ltd. Xiamen another quality mobile applications. Yaku application development for the purpose of this is to provide convenience to the user in their daily lives. Zip inquiries and general domestic and international inquiries on the application of the Code is that this application is not limited to the country Zip code query, more International Code of queries. It can be said, is by far the most comprehensive code of a query application in the use of the application process, the user can not only directly enter the search can also be used city-level excerpt. Applications provided the content is not just the final code, including the area code to provide the query.