Perihelion
Traverse a knowledge graph, one node at a time.
Install on iPhoneOpen this page in Safari on the iPhone 12 mini this build was signed for. The install prompt will not appear on a desktop browser.
This is an in‑app browser, not Safari.
Installing will not work here — iOS hands the link to the App Store
and offers to open iTunes instead. Tap the compass icon at the
bottom‑right of this window, or the share button then
Open in Safari, and press Install there.
This replaces Constellation, it does not upgrade it. The app was renamed, so it carries a new bundle identifier and installs alongside the old one. Delete Constellation from your home screen after this finishes.
- Version
- 3.2.1 (23)
- Bundle
- com.craigglendenning.perihelion
- Min iOS
- 13.0
- Signing
- Development · MCALPSQ5P5
- Graph
- Live Wikidata · 122M items
- Network
- Required · Wikidata + Wikipedia
What changed in 3.2.1
- Topics with no English label no longer show as a bare Q-number. Wikidata is missing an English name more often than you would expect — Q36301 is Anne Hathaway, named there in Arabic, Czech, Greek, Hebrew and Korean but not English — so the English article title is used instead.
- That also fixes the detail screen, which was searching Wikipedia for “Q36301” and finding nothing.
- Unlabelled topics can now take a seat rather than being dropped, so genuinely well-known ones stop going missing.
Article summaries are fetched at runtime from Wikipedia and shown verbatim under
CC BY-SA 4.0, credited in the app to the article they came from.
Topics and relationships come from Wikidata under CC0, a public domain dedication. Nothing under a share-alike license is bundled into the app.