when-where-what-database
Hiroe Oshimura Education iPhoneiPadiPod touch
when-where-what-database is a free Education app for iPhone and iPad by Hiroe Oshimura. Requires iOS 13.0. Updated November 29, 2025.
- Price
- Free
- on the App Store
- Size
- 30 MB
- Age 4+
- Updated
- Nov 29
- 2025 · v1.2.0
Screenshots
About when-where-what-database
"四次元年表" is a project where users collaborate to build a database that encompasses all historical events, from the origins of the universe to the endless "now", regardless of the field. It aims to accurately display both temporal and spatial distances by making "where" as important as "when".
What’s new
Version 1.2.0 · Updated November 29, 2025
The app is now connected to a new database. Please update to the latest version
App privacy
The developer, Hiroe Oshimura, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
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| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| when-where-what-database | – | Free | November 29, 2025 | |
| One Light Day | – | Free | Aug 20, 2026 | Compare |
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