古诗文网专业版 is an educational and reference app developed by Chongqing Dianshigu Technology Co. Ltd. It is a website dedicated to the preservation and promotion of classical Chinese poetry and literature, providing a convenient platform for enthusiasts to publish and access related materials.

The main features of this app include a comprehensive collection of ancient poems and literature, a user-friendly search function, annotated translations and pinyin for the original texts, and a simple and straightforward interface. Additionally, the app offers a monthly membership service for users.

Please note that the app also offers an optional subscription called "Honor Membership" with different durations (1 month, 6 months, and 12 months) and prices (6 yuan, 30 yuan, and 50 yuan respectively). The subscription will be automatically renewed and charged to the user's iTunes account 24 hours before the expiration date unless canceled manually.

For in-app purchases, users can also choose to show their support by paying a one-time fee ranging from 6 yuan to 168 yuan. These payments do not automatically renew.

Overall, 古诗文网专业版 is a comprehensive app for lovers of classical Chinese poetry and literature, providing a wide range of resources in a user-friendly interface.