# YiDian DigiT — Historical sky & star lore

> Historical sky & star lore (iPhone/iPad app by 佩文 刘.)

- Source: https://appshunter.io/ios/app/yidian-digit/id6782764762 (this page in markdown: same URL + `.md`)
- Developer: [佩文 刘](https://appshunter.io/developer/6782678020)
- Category: Utilities, Reference
- Price: Free
- Age rating: 4+
- Requires: iOS 13.0 · 70 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2026-09-05
- Data updated: 2026-09-30

## What is YiDian DigiT?

YiDian DigiT is a “Historical Astronomy” study tool for learners of traditional Chinese culture and the history of astronomy. An interactive 3D celestial sky shows traditional asterisms, the Twenty-Eight Mansions, and the classic luminaries; scrub time to see how the sky changes. The app highlights recent and yearly notable geometric sky events (conjunctions, multi-planet gatherings, mansion ingress, and more), and offers term notes plus short classic-style excerpts for side-by-side study.

Differentiator — Classics Lookup (典籍稽考): starting from mansions, star names, and observational terms (ingress, station, conjunction, etc.), use AI-assisted lookup to retrieve brief observational / chronicle-style excerpts so you can match what you see on the sky map with how historical astronomical writings describe it (for study and comparison—not prediction).

Key features:
• 3D celestial sky: explore asterisms, mansion degrees, and luminaries to understand classical sky coordinates
• Time scrubbing: change the moment and inspect nearby conjunctions, gatherings, and mansion ingress
• Notable sky events of the year: a jumpable list of gatherings, conjunctions, and ingress events for event-based learning
• Observational terms: name meanings and traditional imagery notes for technical vocabulary
• Classics Lookup: AI-assisted classic-style excerpts from terms and event queries, for study and copyable notes
• Structured info views: organized displays of sky events and terms for quick reference

How to use: open the app to the sky map; search mansions/stars, or jump from the yearly events list; tap Classics Lookup to get term notes and short excerpts. For cultural and historical astronomy learning only—not professional advice.

For: self-learners interested in classical Chinese astronomy, asterisms, and calendrical culture.

## Is YiDian DigiT safe?

Not enough ratings yet to assess YiDian DigiT.

## Is YiDian DigiT legit?

YiDian DigiT has limited verification signals. The AppsHunter Legitimacy Score for YiDian DigiT is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-09-05

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-30.*