YiYu Downloads & RevenueYiYu · App Store

Yiyu is a note-taking tool based on the traditional Eastern cultural system, allowing users to experience the "holographic" system in Eastern Taoist culture, as well as enabling users to self-observe and self-predict trends. It supports local character profiles, observation notes, traditional culture learning, and image capture tools. The content is for cultural experience and self-reflection only.

You can create a self-profile here. After binding it, you can check your current status, fortune trends and even health precautions at any time. And it can record the problems and status of each day. Functions such as the Eight Characters, I Ching, and holography are retained as auxiliary tools in the "Image Collection Toolbox" to help organize problems, observe stage rhythms, and preserve self-reflection records, rather than providing definite judgments.
Main functions
Local character profile
After filling in the date of birth, time and gender, a character profile can be generated and bound. And display and interpret them by specific categories on the cover. Among them, the "Present" function can interpret and analyze the user's development in each past year as well as the development trend of each month in this year.
At the same time, it can also preserve others' files and analyzed data. The archives are used for subsequent cultural interpretation, archival Q&A sessions, and personal center displays.

Learning of traditional culture
It provides knowledge cards such as Yin-Yang, Five Elements, Heavenly Stems and Earthly Branches, I Ching Image selection, solar terms and Time, local privacy, self-observation, and rational boundaries. Each card can be unfolded to read detailed instructions, practice methods and boundary reminders, helping users understand the cultural context behind the tool.

Imaging toolbox
The Eight Characters, I Ching, holographic numbers and name images are all placed in the toolbox as auxiliary entry points for organizing questions and recording reference perspectives. Among them, the "holographic" function can directly interpret the personality, fortune, etc. of the person whose phone number, license plate number, etc. belong to any country or region. And no additional information is needed

Archival Q&A
Under this function, you can not only have a conversation with "Yusen" to experience different cognitive perspectives, but also conduct in-depth analysis and experience. For any question you are curious about, it can guide you to look ahead or provide you with the most core answer feedback.

Members and additional programs
Yiyu offers Platinum membership, Black Diamond membership, in-depth cultural add-on package, financial rhythm image capture subscription, as well as in-app Store purchase items such as Yuyin interpretation times, archive Q&A times, image capture times, and Life factor archives. All digital content purchases are completed through in-app purchases on the Apple App Store.

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