K vs Marunomi
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
K
An idle RPG where K-Pop idol groups battle monsters in another dimension. Enjoy high-quality K-Pop music as your characters grow and strategize with skill cards. Uncover dimensional secrets and save the world.
- Idle RPG gameplay
- High-quality K-Pop BGM
- Offline character growth
- Strategic skill card system
- Dimensional monster battles
- Uncover secrets
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Enjoy high-quality K-Pop while playing! The ultimate idle RPG. Why did 5 idol groups become Dimension Slayers? Monsters pouring in instead of stage lights! 5 top-tier K-Pop idol groups are suddenly summoned to a dimensional battlefield. Why did they have to trade their microphones for weapons and become "Dimension Slayers"? The stage heading towards the massive secret hidden within the dimensional rift begins now! *Your Personal K-Pop Concert! Unlimited BGM Leave the game on and enjoy a continuous stream of high-quality K-Pop tracks! Treat your eyes to dazzling combat and your ears to exciting music. The ultimate sensory experience! *Listen to Music and Grow Fast! (Ultimate Idle System) Busy with daily life? Just enjoy the music and let the game do the rest! Experience stress-free, rapid growth with massive offline rewards. While you vibe to the beat, your characters level up effortlessly. *Strategic Skill Cards: Your Choice Matters! It's not just about watching. Choosing the right "Skill Card" at the perfect moment is the key to victory! Wipe out endless waves of dimensional monsters with your brilliant strategic card picks. Step onto the stage today, uncover the secrets of the dimensions, and save the world! **This game does not require an internet connection except for the initial resource download on first launch and the leaderboard feature. **The K-Pop songs included in the game can be permanently owned and enjoyed within the game. EULA : https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Marunomi
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A surreal idle creature-raising game where a deadpan fish gulps down prey and evolves into weird, creepy-cute forms. HOW TO PLAY - Tap a prey fish, your fish dashes and swallows it whole - The more it eats, the more it evolves into bizarre new shapes - Evolutions are random - you'll keep playing to see the next weird form FEATURES - A "Dex" of 15+ evolution forms to collect - Hidden evolutions (night-only, gold-drenched, and more) - A deadpan hero who mutters quirky one-liners - 12 endings - it gets oddly touching at the end - Idle-friendly: prey gathers while you're away. Great one-handed game * Don't worry - the fish that get eaten are actually alive and well, living happily in another tank. Cute, yet a little unsettling. You'll laugh, then feel something. Raise a weird little fish in your spare moments.
Screenshots
Verdict
The clearest difference is in-app purchases: Marunomi at none against K's 10. K's advantage is update cadence (fortnightly vs every 6 weeks) and iOS requirement (15.0 vs 26.0). On price, 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. K sells 10 in-app purchases, starting at $4.99 per month. Marunomi asks for nothing beyond the download.
K ships an update fortnightly, Marunomi every 6 weeks. Both last shipped on October 24, 2026.
| Parameter | K | Marunomi |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Fortnightly — better | Every 6 weeks |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 408 MB | 106 MB |
| Age rating | 12+ | 4+ |
| Developer | VRillAR Co., Ltd. | Ryutaro Nakano |
In-app purchases
K
- Basic Monthly Reward (30d)$4.991 Month
- Special Monthly Reward (30d)$10.991 Month
- Gem 1$0.99
- Event Pack 1$0.99
- Event Pack 2$4.99
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- Event Pack 3$9.99
- Event Line Reward$14.99
- Event Pack 4$19.99
- Permanent Reward$39.99
- Event Pack 5$49.99
Marunomi
No in-app purchases









