查八字® APP is a personality and life analysis tool available on Android. With this app, users can generate a birth chart, including major life events and annual predictions, by simply inputting the birth time of any individual. The app supports "True Solar Time" and adjusts for time differences based on the latitude and longitude of the birthplace. Even if the exact birth time is unknown, users can still make use of the "Fuzzy Query" feature to calculate the chart using only the year, month, and day.

The generated birth chart images are visually appealing and can be considered as works of art. In addition to the free birth chart, the app offers a paid feature that provides a comprehensive 20,000-word report on life analysis. This report includes over 100 charts and covers topics such as basic personality traits, life patterns, five-element preferences and taboos, career and wealth prospects, love and marriage, and analysis of major life events.

Unlocking the report also grants access to the "2022 Year of the Tiger Annual and Monthly Fortune" analysis, making it a great value for users. The app also supports a "Compatibility Chart" feature, allowing users to analyze the relationship between two individuals.