# Advanced Space Flight Lite vs The Doctor's Time Machine

The clearest difference is rating: The Doctor's Time Machine at 5.0 against Advanced Space Flight Lite's 3.9. The Doctor's Time Machine also leads on monetization model (ad-supported vs free with in-app purchases). Advanced Space Flight Lite's advantage is ratings volume (83 vs 2). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

The Doctor's Time Machine holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Advanced Space Flight Lite has 83 ratings behind it against 2, so its average is the more settled of the two.

## The numbers

| Metric | Advanced Space Flight Lite | The Doctor's Time Machine |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (83 ratings)](https://appshunter.io/ios/app/advanced-space-flight-lite/id1294375769/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/the-doctors-time-machine/id6443690482/reviews)** |
| Number of ratings | **83** | 2 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | — |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 178 MB | 89 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Guillermo Pawlowsky](https://appshunter.io/developer/1288137823) | [俊杰 吴](https://appshunter.io/developer/505936090) |

## What reviewers say

### Advanced Space Flight Lite

[App page](https://appshunter.io/ios/app/advanced-space-flight-lite/id1294375769)

Explore the cosmos with a realistic space simulator. Travel between planets and stars, experiencing relativistic effects and the true scale of the universe. Includes detailed planetarium and star chart features.

**Highlights:** Realistic space flight simulation, Relativistic effects for interstellar travel, Planetarium with real-scale planets and orbits, Star chart and exoplanet explorer, Full-scale universe visualization, Realistic and free flight modes

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

**In-app purchases:** none


### The Doctor's Time Machine

[App page](https://appshunter.io/ios/app/the-doctors-time-machine/id6443690482)

Embark on an adventure through time, building and enhancing your own time machine. Explore the vastness of the past and future in this engaging game.

**Highlights:** Build time machine, Upgrade time machine, Travel to past, Travel to future, Infinite exploration

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

**In-app purchases:** none


## Frequently asked questions

### Is Advanced Space Flight Lite free?

Advanced Space Flight Lite is free to download, with no in-app purchases.

### Is The Doctor's Time Machine free?

The Doctor's Time Machine is free to download, with no in-app purchases.

### Which has better reviews, Advanced Space Flight Lite or The Doctor's Time Machine?

The Doctor's Time Machine is rated higher. Advanced Space Flight Lite averages 3.9 out of 5 from 83 ratings, while The Doctor's Time Machine averages 5.0 from 2 ratings.

### Do Advanced Space Flight Lite or The Doctor's Time Machine have ads?

Both Advanced Space Flight Lite and The Doctor's Time Machine show ads.

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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.*