# Black Hole - Horizon — Real-time black hole physics

> Real-time black hole physics (iPhone/iPad app by john nelson.)

- Source: https://appshunter.io/ios/app/black-hole-horizon/id6818281799 (this page in markdown: same URL + `.md`)
- Developer: [john nelson](https://appshunter.io/developer/1343238379)
- Category: Education, Entertainment
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 2 MB
- Languages: American English
- Released: 2026-10-16
- Data updated: 2026-10-19

## What is Black Hole?

Fly around a spinning black hole rendered in real time on your device's GPU.

Every pixel traces a ray of light through curved Kerr spacetime, so what you see is what general relativity actually predicts: the dark shadow, the far side of the accretion disk lensed up over the top, the thin photon ring, Doppler beaming that brightens the approaching side of the disk, and gravitational redshift near the horizon.

• Adjust the black hole's spin, the disk temperature and the camera distance
• Drag to orbit, pinch to zoom, two-finger drag to look around
• Cinematic tour mode, plus a dive toward the event horizon
• Live readouts: horizon radius, innermost stable orbit, time dilation
• Disk colours from physically based blackbody spectra
• Relativistic jets and bloom, with quality presets for every device

No accounts, no ads, no tracking.

## Is Black Hole safe?

Not enough ratings yet to assess Black Hole.

## Is Black Hole legit?

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


## Version history (last 1 release)

### 1.2 — 2026-10-16

No release notes.

## More apps by john nelson

- [Fícha](https://appshunter.io/ios/app/ficha/id6816432116)

All apps by john nelson: https://appshunter.io/developer/1343238379

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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 2026-10-19.*