The Marimo vs 新オヤジリウム
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.
新オヤジリウム
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オヤジをアクアリウムに入れて育てる放置系育成ゲーム 自分だけのオヤジリウム（オヤジ版アクアリウム）を作ろう! 簡単操作!餌を置いて放置すればオヤジの繁殖が始まる。 オヤジの種類はなんと60種類以上! 自分だけのオヤジリウム（アクアリウムのオヤジ版）を完成させ、図鑑をコンプリートしよう。 簡単操作!餌を置いて放置すればオヤジが繁殖が始まる放置ゲーム! 3Dのかわいいオヤジ、イケメンオヤジ、モンスターのようなオヤジをペットにして育成しよう! キノコ/なめこ系オヤジや動物系や魚系オヤジが色とりどり! 暇つぶしに最適!女の子でも気軽に楽しめる、無料放置系育成ゲーム! 農園設備を充実させ、オヤジを量産することも可能! 育てたオヤジは競馬レースに出場させランキング上位を目指そう! 【育成手順】 １・オヤジ新規追加ボタンを押して、数分待ちます ２・定期的に餌を与え、オヤジを成長させます ３・時間がたつとオヤジはパートナーを見つけ、繁殖を始めます
Screenshots
Verdict
The clearest difference is ads: 新オヤジリウム at none against The Marimo's shown. 新オヤジリウム also leads on update cadence (every 9 days vs every 3 months) and iOS requirement (9.0 vs 15.6). The Marimo's advantage is review sentiment (79% vs 69%). On price, rating, ratings volume 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.4 for The Marimo against 4.5 for 新オヤジリウム. Both are backed by a comparable volume of ratings — 16 and 26 respectively. Written reviews are what separate them: 79% of The Marimo's written reviews are positive against 69% of 新オヤジリウム's.
The Marimo ships an update every 3 months, 新オヤジリウム every 9 days. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.
| Parameter | The Marimo | 新オヤジリウム |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (16 ratings) | 4.5 (26 ratings) — better |
| Positive reviews | 78.9% of reviews — better | 68.5% of reviews |
| Number of ratings | 16 | 26 — better |
| Update frequency | Every 3 months | Every 9 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.6 | 9.0 — better |
| Further details — not scored | ||
| Size | 18 MB | 128 MB |
| Age rating | 4+ | 4+ |
| Developer | Kosuke Ogawa | Ryota Kikuchi |
Customer experience
The Marimo
新オヤジリウム
In-app purchases
The Marimo
No in-app purchases
新オヤジリウム
No in-app purchases
