Comparison

googolChooChoo3D2 vs Simple Marble Run

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

googolChooChoo3D2

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
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googolChooChoo3D2 is a 3D model railroad simulation program. It is easy to make your own layout. You can add tracks and structures freely to the layout. You can also make a terrain on the layout. You can see the layout in 3D from driver's seat of a running train or from several other locations. New features -The terrain has become editable. -A tunnel is automatically generated. System Requirements -iOS 10.0 or later. -64bit CPU. (recommended A8 or higher)

About

Simple Marble Run

Experience a calming marble game with customizable courses. Manipulate the flow with stoppers, pins, and throwing mechanics. Watch marbles collect and depart in a delightful cycle, offering a unique ASMR-like experience.

Highlights
  • Customizable marble courses
  • Interactive marble manipulation (stoppers, pins)
  • Marble throwing mechanic
  • Truck collection and departure cycle
  • Adjustable camera viewpoints
  • Soothing ASMR-like experience
Features
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A relaxing marble app where countless marbles roll and tumble across the course. Watching small marbles roll one after another is soothing and fun — you may even lose track of time just gazing at them. In this app, you can enjoy many different types of courses, from classic and simple layouts to unique and playful ones. The charm lies not only in watching the flow, but also in being able to add your own twists and enjoy different ways to play. The rolling marbles can be stopped, thrown, or redirected, allowing for all kinds of surprising moments. • With stoppers, you can hold back marbles and then release them all at once. It feels exciting to see a sudden rush of marbles flowing out together. • Place pins wherever you like to scatter the flow, split the marbles into unexpected paths, or even create small dead ends. Just a little change can transform the whole course. • With the throwing feature, you can tap the screen and toss a marble right to that spot. This lets you add marbles directly into the middle of the action. • At the goal, a truck waits to collect the marbles. Once enough marbles have piled up, a start button appears and the truck drives off, only for a new one to arrive. Watching the marbles leave together with the truck is a delightful part of the experience. • Along the course, you’ll also find camera buttons. Press them to switch the viewpoint and enjoy the marbles from a fresh angle. If you change the camera right before releasing a big group of marbles, the scene becomes even more thrilling to watch. There’s a special satisfaction in building up marbles and letting them flow all at once, in experimenting with setups that create surprising movements, or in simply enjoying the unexpected. Unlike real-life marble play, where preparing many marbles can be difficult, here you can easily enjoy “lots of marbles” and “special tricks” as many times as you like. The rolling sounds and movements are soothing and calming, almost like an ASMR experience that brings a sense of relaxation. You can play however you like — relax and watch quietly, or set up bold tricks and let the marbles rush in large numbers. A marble playground you can enjoy anytime, right on your phone. Roll them again and again, and find your own favorite way to play.

Screenshots

googolChooChoo3D24 screens
Simple Marble Run4 screens

Verdict

The call

The clearest difference is review sentiment: googolChooChoo3D2 at 77% against Simple Marble Run's 0%. googolChooChoo3D2 also leads on iOS requirement (12.0 vs 15.0). Simple Marble Run's advantage is rating (4.4 vs 4.0) and ratings volume (238 vs 34). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

Simple Marble Run holds the better App Store score, 4.4 against 4.0. That said, the two scores are not equally well evidenced: Simple Marble Run has 238 ratings behind it against 34, so its average is the more settled of the two. Written reviews complicate that: 77% of googolChooChoo3D2's written reviews are positive against 0% of Simple Marble Run's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

googolChooChoo3D2 ships an update monthly, Simple Marble Run every 6 weeks. The most recent releases landed on September 8, 2026 and September 20, 2026 respectively.

Scorecard4 real differences · 6 level
googolChooChoo3D2 versus Simple Marble Run: the parameters behind the verdict, then further details
ParametergoogolChooChoo3D2Simple Marble Run
PriceFreeFree
Rating4.0 (34 ratings)4.4 (238 ratings) — better
Positive reviews76.9% of reviews — better0.0% of reviews
Number of ratings34238 — better
Update frequencyMonthly — betterEvery 6 weeks
AdsYesYes
In-app purchasesNoNo
MonetizationAd-supportedAd-supported
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size39 MB193 MB
Age rating4+4+
DeveloperKouichi Hayashimonois Inc.

Customer experience

googolChooChoo3D2

All ratings34 ratings
Positive70.6%
Neutral14.7%
Negative14.7%
Written reviews13 reviews
Positive76.9%
Neutral0.0%
Negative23.1%

Simple Marble Run

All ratings238 ratings
Positive83.2%
Neutral6.7%
Negative10.1%
Written reviews5 reviews
Positive0.0%
Neutral40.0%
Negative60.0%

In-app purchases

None

googolChooChoo3D2

No in-app purchases

None

Simple Marble Run

No in-app purchases

Questions

Is googolChooChoo3D2 free?
googolChooChoo3D2 is free to download, with no in-app purchases.
Is Simple Marble Run free?
Simple Marble Run is free to download, with no in-app purchases.
Which has better reviews, googolChooChoo3D2 or Simple Marble Run?
Simple Marble Run is rated higher. googolChooChoo3D2 averages 4.0 out of 5 from 34 ratings, while Simple Marble Run averages 4.4 from 238 ratings.
Do googolChooChoo3D2 or Simple Marble Run have ads?
Both googolChooChoo3D2 and Simple Marble Run show ads.
Which is updated more often, googolChooChoo3D2 or Simple Marble Run?
googolChooChoo3D2 ships an update monthly, and Simple Marble Run every 6 weeks. Most recently, googolChooChoo3D2 was updated on September 8, 2026 and Simple Marble Run on September 20, 2026.

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