# 3D STEREOVISION TIME MACHINE 2 vs googolChooChoo3D2

The clearest difference is rating: 3D STEREOVISION TIME MACHINE 2 at 5.0 against googolChooChoo3D2's 4.0. 3D STEREOVISION TIME MACHINE 2 also leads on ads (none vs shown) and review sentiment (100% vs 77%). googolChooChoo3D2's advantage is update cadence (monthly vs every 3 months) and ratings volume (35 vs 2). On price, 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.

3D STEREOVISION TIME MACHINE 2 holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: googolChooChoo3D2 has 35 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of 3D STEREOVISION TIME MACHINE 2's written reviews are positive against 77% of googolChooChoo3D2's.

3D STEREOVISION TIME MACHINE 2 ships an update every 3 months, googolChooChoo3D2 monthly. The most recent releases landed on November 1, 2026 and November 11, 2026 respectively.

## The numbers

| Metric | 3D STEREOVISION TIME MACHINE 2 | googolChooChoo3D2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/3d-stereovision-time-machine-2/id432270029/reviews)** | [4.0 (35 ratings)](https://appshunter.io/ios/app/googolchoochoo3d2/id1223923252/reviews) |
| Number of ratings | 2 | **35** |
| Positive reviews | **100.0% of reviews** | 76.9% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | **Free** | Ad-supported |
| Size | 60 MB | 34 MB |
| Requires iOS | **9.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [John Avatar](https://appshunter.io/developer/375690746) | [Kouichi Hayashi](https://appshunter.io/developer/1809037541) |

## What reviewers say

### 3D STEREOVISION TIME MACHINE 2

[App page](https://appshunter.io/ios/app/3d-stereovision-time-machine-2/id432270029)

Explore historical moments and figures through immersive 3D stereoscopic images. View iconic figures and events from over 150 years ago in a unique, interactive format.

**Highlights:** 3D stereoscopic image viewing, Flipvision animations, Historical portraits and scenes, Vintage music background, Interactive image navigation

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

**In-app purchases:** none


### googolChooChoo3D2

[App page](https://appshunter.io/ios/app/googolchoochoo3d2/id1223923252)

Design and build your own 3D model railroad layouts with customizable tracks, structures, and terrain. Experience your creations from various viewpoints, including the driver's seat of a running train.

**Highlights:** 3D model railroad simulation, Customizable track and structure placement, Terrain creation and editing, Multiple viewing perspectives, Automatic tunnel generation, Driver's seat view

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

**In-app purchases:** none


## Frequently asked questions

### Is 3D STEREOVISION TIME MACHINE 2 free?

3D STEREOVISION TIME MACHINE 2 is free to download, with no in-app purchases.

### Is googolChooChoo3D2 free?

googolChooChoo3D2 is free to download, with no in-app purchases.

### Which has better reviews, 3D STEREOVISION TIME MACHINE 2 or googolChooChoo3D2?

3D STEREOVISION TIME MACHINE 2 is rated higher. 3D STEREOVISION TIME MACHINE 2 averages 5.0 out of 5 from 2 ratings, while googolChooChoo3D2 averages 4.0 from 35 ratings.

### Do 3D STEREOVISION TIME MACHINE 2 or googolChooChoo3D2 have ads?

googolChooChoo3D2 shows ads; 3D STEREOVISION TIME MACHINE 2 does not.

### Which is updated more often, 3D STEREOVISION TIME MACHINE 2 or googolChooChoo3D2?

3D STEREOVISION TIME MACHINE 2 ships an update every 3 months, and googolChooChoo3D2 monthly. Most recently, 3D STEREOVISION TIME MACHINE 2 was updated on November 1, 2026 and googolChooChoo3D2 on November 11, 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.*