# Relativistic Space vs Simple Orbit Simulator

The clearest difference is price: Relativistic Space at Free against Simple Orbit Simulator's $0.99. Relativistic Space also leads on iOS requirement (13.0 vs 18.2). Simple Orbit Simulator's advantage is update cadence (every 3 days vs every 75 months). On ads, in-app purchases and device support there is nothing between them.

Relativistic Space is free to download; Simple Orbit Simulator costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Relativistic Space ships an update every 75 months, Simple Orbit Simulator every 3 days. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Relativistic Space | Simple Orbit Simulator |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/relativistic-space-time/id1463093650/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 75 months | **Every 3 days** |
| Monetization | Free | — |
| Size | 52 MB | 9 MB |
| Requires iOS | **13.0** | 18.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Thieberson Gomes](https://appshunter.io/developer/1434771806) | [Bratislav Ljubisic](https://appshunter.io/developer/570434691) |

## What reviewers say

### Relativistic Space

[App page](https://appshunter.io/ios/app/relativistic-space-time/id1463093650)

This educational tool simulates the behavior of space and time at high speeds. Developed as part of a master's dissertation, it focuses on relativistic effects without considering acceleration.

**Highlights:** Relativistic velocity simulation, Space-time behavior visualization, Pedagogical tool, Master's dissertation project

**Features:** macOS Compatibility

**In-app purchases:** none


### Simple Orbit Simulator

[App page](https://appshunter.io/ios/app/simple-orbit-simulator/id6762567160)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Relativistic Space free?

Relativistic Space is free to download, with no in-app purchases.

### Is Simple Orbit Simulator free?

Simple Orbit Simulator costs $0.99, with no in-app purchases.

### Do Relativistic Space or Simple Orbit Simulator have ads?

Neither Relativistic Space nor Simple Orbit Simulator shows ads.

### Which is updated more often, Relativistic Space or Simple Orbit Simulator?

Relativistic Space ships an update every 75 months, and Simple Orbit Simulator every 3 days. Most recently, Relativistic Space was updated on October 7, 2026 and Simple Orbit Simulator on October 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*