The Marimo vs Duck Pet
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.
Duck Pet
Raise a cute duck as a virtual pet on your phone. Enjoy its smooth animations and relaxing music while easily feeding and cleaning it. Watch your duck grow and interact with it by tapping the screen.
- Virtual duck pet
- Easy feeding and cleaning
- Duck growth tracking
- Interactive touch controls
- Relaxing music
- Customizable duck name
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Completely free! This is an application to make a Duck a pet. You can easily raise a cute Duck in your phone. The smooth animation of the Duck's cute movements will heal you. The music is also very relaxing. This game is an app to raise Ducks in your phone. It's very easy to take care of them. All you have to do is feed it and clean it! It is recommended for people who are not good at playing games and busy people. Please enjoy watching the Duck grow day by day. The game's contents You can feed the Duck, clean it, and take care of it easily. The Duck grows a little bit every day. Touch the screen, and the Duck will come to that place. You can watch the Duck while listening to music. You can give the Duck a name of your choice. (The name can be changed at any time.) The size of the Duck is updated every second so that you can see its size in real time. When you start the app, it will report how much it has grown since the last time. Notifies you of the timing of feeding and cleaning.
Screenshots
Verdict
The clearest difference is ratings volume: Duck Pet at 323 against The Marimo's 16. Duck Pet also leads on iOS requirement (10.0 vs 15.6). The Marimo's advantage is monetization model (ad-supported vs free with in-app purchases). On price, rating, review sentiment and update cadence 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. Neither carries in-app purchases, so what you see is what you pay.
Duck Pet holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Duck Pet has 323 ratings behind it against 16, so its average is the more settled of the two. Written reviews split almost evenly too, at 80% and 79% positive.
The Marimo ships an update every 3 months, Duck Pet every 6 months. The most recent releases landed on September 26, 2026 and September 21, 2026 respectively.
| Parameter | The Marimo | Duck Pet |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (16 ratings) | 4.6 (323 ratings) — better |
| Positive reviews | 79.6% of reviews — better | 79.0% of reviews |
| Number of ratings | 16 | 323 — better |
| Update frequency | Every 3 months — better | Every 6 months |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 10.0 — better |
| Further details — not scored | ||
| Size | 18 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | Kosuke Ogawa | sio honda |
Customer experience
The Marimo
Duck Pet
In-app purchases
The Marimo
No in-app purchases
Duck Pet
No in-app purchases
Questions
Is The Marimo free?
Is Duck Pet free?
Which has better reviews, The Marimo or Duck Pet?
Do The Marimo or Duck Pet have ads?
Which is updated more often, The Marimo or Duck Pet?
Other comparisons
