100年表 is a lifestyle app developed by Takehito Takashimada for iPhone users. It is a comprehensive app that allows users to organize and keep track of important events throughout their lifetime, such as educational and professional milestones, family life plans, birthdays, celebrations of longevity, and memorial services.

The app offers various features to help users manage their events effectively. With a starting year ofthe first year of the Meiji era) and an end year of 100 years into the future, users can create and maintain a timeline of events. They can also categorize events, enabling color-coded differentiation and customizable display filters.

The app includes a useful set of tools for easy event registration. Users can utilize the tools to bulk register events like educational milestones, celebrations of longevity, and memorial services. Additionally, the app provides a passcode lock feature to ensure the privacy and security of the stored information.

While the free version of 100年表 has some limitations, such as a timeline restricted to 20 years and the inability to use passcode lock and iCloud backup, the full version removes these restrictions, allowing users to enjoy all the app's features.

For users who wish to back up their data, the app offers iCloud backup and restore functionality. Additionally, they can export their event data in CSV (comma-separated values) format.

100年表 is a valuable tool for anyone who wants to keep track of important events in their life. With its intuitive interface and comprehensive features, it offers a convenient way to organize and manage a lifetime of memories.