The Marimo vs Cryptid Aquarium
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
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.
- Virtual pet care
- Growth simulation
- Environment maintenance
- Customization options
- Interactive controls
- Social sharing
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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.
Cryptid Aquarium
Discover and collect a variety of mysterious creatures, from fish and animals to plants and mushrooms. Feed them to make them multiply, train them for sports competitions, and aim for the top rankings. This game offers a fun and engaging way to pass the time with its free-range breeding and farm-building mechanics.
- Collect diverse creatures
- Feed and breed creatures
- Train creatures for sports
- Compete in rankings
- Build creature farms
- Free-range breeding
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The latest in the aquarium series with a total of 3 million downloads. An insane game filled mystery. Feed your creatures and they will multiply. Collect all kinds of creatures. Fish! Animals! Plants! Mushrooms! All kinds of cute creatures! Train the creatures you catch and have them participate in sports competitions (races, swimming). Aim for the top in the rankings. Easy to use and perfect for killing time! Breed your creatures free-range! You can also mass-produce creatures by building up your farm!
Screenshots
Verdict
The clearest difference is rating: Cryptid Aquarium at 4.9 against The Marimo's 4.4. Cryptid Aquarium also leads on update cadence (weekly vs every 3 months) and ratings volume (246 vs 16). The Marimo's advantage is in-app purchases (none vs 5). On price, review sentiment, ads and device support 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
Both are free to download. Cryptid Aquarium sells 5 one-off in-app purchases. The Marimo asks for nothing beyond the download.
Cryptid Aquarium holds the better App Store score, 4.9 against 4.4. That said, the two scores are not equally well evidenced: Cryptid Aquarium has 246 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 84% of Cryptid Aquarium's.
The Marimo ships an update every 3 months, Cryptid Aquarium weekly. The most recent releases landed on September 22, 2026 and September 24, 2026 respectively.
| Parameter | The Marimo | Cryptid Aquarium |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (16 ratings) | 4.9 (246 ratings) — better |
| Positive reviews | 79.6% of reviews | 84.3% of reviews — better |
| Number of ratings | 16 | 246 — better |
| Update frequency | Every 3 months | Weekly — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 13.2 — better |
| Further details — not scored | ||
| Size | 18 MB | 78 MB |
| Age rating | 4+ | 4+ |
| Developer | Kosuke Ogawa | Ryota Kikuchi |
Customer experience
The Marimo
Cryptid Aquarium
In-app purchases
The Marimo
No in-app purchases
Cryptid Aquarium
- ルビーx1$0.99
- lights$1.99
- Light$1.99
Show 2 moreShow fewer
- ルビーx6$3.99
- ルビーx52$26.99
Questions
Is The Marimo free?
Is Cryptid Aquarium free?
Which has better reviews, The Marimo or Cryptid Aquarium?
Do The Marimo or Cryptid Aquarium have ads?
Which is updated more often, The Marimo or Cryptid Aquarium?
Other comparisons
