# relativistic space travel

> relativistic space travel (iPhone/iPad app by Sungjun Kim.)

- Source: https://appshunter.io/ios/app/relativistic-space-travel/id6443974500 (this page in markdown: same URL + `.md`)
- Developer: [Sungjun Kim](https://appshunter.io/developer/1602461985)
- Category: Education
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 0 MB
- Languages: English
- Released: 2022-10-25
- Data updated: 2026-01-13
- User reviews in markdown: https://appshunter.io/ios/app/relativistic-space-travel/id6443974500/reviews.md

## What is relativistic space travel?

This app shows the effect of time dilation in relativity. Rocket travels to the planet far from Earth. The distance from Earth to the planet could be changed from 1 light-year to 100 light-years. Rocket speed could be changed from 0.01c to 0.99c. Time on rocket means time spent for rocket to reach the planet, which is measured on the rocket. Time on Earth means time spent for rocket to reach the planet, which is measured on Earth. c is the speed of light. The first plus button increases distance by 1 light-year. The second plus button increases rocket speed by 0.01c.


## Version history (last 1 release)

### 1.0 — 2022-10-26

No release notes.

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## More apps by Sungjun Kim

- [relativistic balloon](https://appshunter.io/ios/app/relativistic-balloon/id1633566916)
- [game theories 1](https://appshunter.io/ios/app/game-theories-1/id6443715938)
- [game theories 2](https://appshunter.io/ios/app/game-theories-2/id6443716105)
- [relativistic velocity addition](https://appshunter.io/ios/app/relativistic-velocity-addition/id6443873136)
- [Learning Hangul](https://appshunter.io/ios/app/learning-hangul/id6449379992)

All apps by Sungjun Kim: https://appshunter.io/developer/1602461985

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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 2026-01-13.*