Comparison

The Marimo vs Virtual Orca Simulation game3D

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

Head to head
About

The Marimo

Care for a virtual green ball creature that grows over time. Keep its environment clean and provide light to ensure its survival. Customize its appearance and interact with it through various gestures.

Highlights
  • Virtual pet care
  • Growth simulation
  • Environment maintenance
  • Customization options
  • Interactive controls
  • Social sharing
Features
Read full description

Thank you 1,130,000 download!! [About Marimo] Marimo means a plant like a green ball which grow in Hokkaido, Japan. You can raise a Marimo. A marimo will grow up little by little every day. When water become dirty, you need to refresh water. If you don't take care of a Marimo long time, Marimo will wither. [Other Features] - You can rename Marimo, and change background. - Drag to move Marimo. - Double tap to pick tap Marimo. - Rotate marimo with two finger. - Marimo moves by the direction of the device. - You can upload image of Marimo on Twitter/Facebook. - Photosynthesis occurs in a bright place.

About

Virtual Orca Simulation game3D

A relaxing digital pet experience where you care for a virtual orca. Decorate its underwater environment and maintain its habitat to ensure its well-being. Enjoy a soothing escape with beautiful scenery.

Highlights
  • Virtual orca care
  • Habitat decoration
  • Feeding mechanic
  • Water changing mechanic
  • Relaxing underwater scenery
Features
Read full description

Aquarium World is a free, simple and soothing digital pet game. Purpose The game's objective is to make you feel at ease. Relax while looking at the beautiful underwater scenery. How to play To train your orca, you will need to do the following: · Feed it every three days · Change the water every seven days Features The game has a decoration function. Enjoy decorating the sea to your liking!

Screenshots

The Marimo3 screens
Virtual Orca Simulation game3D4 screens

Verdict

The call

The clearest difference is rating: Virtual Orca Simulation game3D at 4.8 against The Marimo's 4.4. Virtual Orca Simulation game3D also leads on ratings volume (228 vs 16) and update cadence (every 6 weeks vs every 3 months). The Marimo's advantage is monetization model (ad-supported vs free with in-app purchases). On price, review sentiment, 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

Virtual Orca Simulation game3D holds the better App Store score, 4.8 against 4.4. That said, the two scores are not equally well evidenced: Virtual Orca Simulation game3D has 228 ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 80% of The Marimo's written reviews are positive against 81% of Virtual Orca Simulation game3D's.

UpkeepUpdate frequency

The Marimo ships an update every 3 months, Virtual Orca Simulation game3D every 6 weeks. The most recent releases landed on September 22, 2026 and September 21, 2026 respectively.

Scorecard5 real differences · 5 level
The Marimo versus Virtual Orca Simulation game3D: the parameters behind the verdict, then further details
ParameterThe MarimoVirtual Orca Simulation game3D
PriceFreeFree
Rating4.4 (16 ratings)4.8 (228 ratings) — better
Positive reviews79.6% of reviews81.4% of reviews — better
Number of ratings16228 — better
Update frequencyEvery 3 monthsEvery 6 weeks — better
AdsYesYes
In-app purchasesNoNo
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.613.0 — better
Further details — not scored
Size18 MB169 MB
Age rating4+4+
DeveloperKosuke OgawaEiko Morozumi

Customer experience

The Marimo

All ratings16 ratings
Positive87.5%
Neutral6.3%
Negative6.3%
Written reviews93 reviews
Positive79.6%
Neutral10.8%
Negative9.7%

Virtual Orca Simulation game3D

All ratings228 ratings
Positive95.2%
Neutral3.5%
Negative1.3%
Written reviews129 reviews
Positive81.4%
Neutral8.5%
Negative10.1%

Bugs and requests

The Marimo

Not enough reviews yet to summarise bugs or requests.

Virtual Orca Simulation game3D

Reported bugs

16 issues
  • Limited decoration items available
  • Cannot access limited-time decorations
  • Video ads fail to load
  • App crashes or freezes
  • Data transfer issues after changing devices
Show 11 more
  • Notification badge remains after update
  • Cannot open treasure chests
  • Purchased items not appearing
  • Game not loading after update
  • Spam calls after installing the app
  • Game not working properly after update
  • Translation issues
  • Choppy animations
  • Cannot view ads
  • Login issues
  • Items disappear after purchase

Requested features

20 requests
  • Sound/music feature
  • Resurrection feature for dead orcas
  • More interactive features with orca
  • Ability to add more orcas (family/friends)
  • Zoom function for better viewing
Show 15 more
  • New decorations and items
  • More diverse ocean creatures
  • Night mode for the sea
  • Option to turn off ads with purchase
  • More mini-games or interactive activities
  • Ability to pet orca
  • More realistic orca behavior (breathing, sounds)
  • More diverse background elements
  • Ability to customize placement of decorations
  • More varied fish and food options
  • Ability to save photos without UI elements
  • More whale species
  • Ability to have orca reproduce
  • In-app purchase for ad-free experience
  • More interactive elements in the environment

In-app purchases

None

The Marimo

No in-app purchases

None

Virtual Orca Simulation game3D

No in-app purchases

Questions

Is The Marimo free?
The Marimo is free to download, with no in-app purchases.
Is Virtual Orca Simulation game3D free?
Virtual Orca Simulation game3D is free to download, with no in-app purchases.
Which has better reviews, The Marimo or Virtual Orca Simulation game3D?
Virtual Orca Simulation game3D is rated higher. The Marimo averages 4.4 out of 5 from 16 ratings, while Virtual Orca Simulation game3D averages 4.8 from 228 ratings.
Do The Marimo or Virtual Orca Simulation game3D have ads?
Both The Marimo and Virtual Orca Simulation game3D show ads.
Which is updated more often, The Marimo or Virtual Orca Simulation game3D?
The Marimo ships an update every 3 months, and Virtual Orca Simulation game3D every 6 weeks. Most recently, The Marimo was updated on September 22, 2026 and Virtual Orca Simulation game3D on September 21, 2026.

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