Fish IO: Be the King vs its rivals

Side-by-side comparison against Fish IO: Be the King's closest competitors — identity, store metrics, ratings & sentiment, and strategic intel.

Paper.io 3D
Contender
Core Identity
DeveloperBrave HK LimitedAzur Interactive Games LimitedVoodooUbisoftUbisoftGeisha Tokyo Inc.VoodooVoodooVoodoo
CategoryGamesGamesGamesGamesGamesGamesGamesGamesGames
PlatformiOSAndroid, iOSAndroid, iOSiOS, AndroidAndroid, iOSAndroid, iOSAndroid, iOSAndroid, iOSiOS, Android
Store Metrics
Rating4.2 / 54.5 / 54.5 / 54.7 / 54.7 / 54.7 / 54.6 / 54.6 / 54.7 / 5
Ratings Count69144,753304,570616,525198,211457,3832,741,6751,971,748467,888
PriceFreeFreeFreeFreeFreeFreeFreeFreeFree
Release DateFeb 14, 2023Apr 3, 2018Dec 5, 2019May 4, 2016Oct 24, 2012Sep 25, 2018Feb 28, 2019Jun 24, 2018Feb 8, 2020
Last UpdatedMar 10, 2026Jul 1, 2026Jun 12, 2026Apr 14, 2026May 8, 2026Feb 27, 2026Apr 15, 2026Jun 25, 2026Mar 11, 2026
Sentiment & Reviews
Sentiment-mixed-positivepositivepositivepositivemixedmixed
Score-65/100-68/10075/10075/10065/10065/10055/100
Praises-
  • The core gameplay loop provides a satisfying and addictive experience for casual play sessions
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  • Engaging Gameplay & Nostalgia
  • Offline Accessibility
  • Nostalgic gameplay loop provides long-term entertainment value for players returning after many years
  • Core snowball rolling mechanics provide an addictive and relaxing gameplay loop for casual players
  • Gameplay Enjoyment
  • Ease of Use
-
  • Core gameplay loop provides a relaxing and entertaining experience for casual play sessions
Complaints-
  • Excessive ad frequency disrupts the gameplay flow and degrades the overall user experience
-
  • Technical Bugs & Data Loss
  • Aggressive Ad Experience
  • Randomized progress loss and account synchronization failures frustrate long-term players across platforms
  • Excessive ad frequency disrupts the flow of short match sessions for active players
  • Excessive Advertising
  • False Offline Claims
-
  • Excessive ad frequency disrupts the gameplay flow and creates a negative user experience
Requests-
  • Adjustable control options to improve precision and comfort during gameplay sessions
--
  • Cross-platform save progression is needed to allow account migration between mobile operating systems
  • Multiplayer online mode requested to enable direct competition against real human friends
--
  • Expansion of content through additional levels and diverse maps for long-term progression
Strategic Intel
Strengths
  • Shark-with-a-sword combat mechanic provides a more aggressive, weapon-based tactical experience
  • Four distinct ocean themes support visual variety across repeated sessions
  • Vanity-driven skin wardrobe sustains repeat session velocity
  • Offline-first architecture captures users in low-connectivity segments
  • Tactical playstyles increase session depth and ad-inventory
  • Spatial 3D mechanics differentiate the core loop from flat-surface competitors
  • High-frequency session design supports high ad-inventory throughput
  • Strong IP nostalgia and brand recognition
  • High-quality 3D visuals and realistic environments
  • Robust offline play functionality
  • Nostalgic core loop anchors long-term retention
  • Offline-first architecture captures low-connectivity markets
  • Diverse shark roster sustains event-based engagement
  • Physics-based combat loop drives high session frequency
  • Skin collection system sustains long-term meta-progression
  • Massive user base (4.2M+ ratings) providing dominant social proof
  • Strong brand recognition within the water slide racing niche
  • Intuitive, physics-based 'shortcut' mechanics that reward skill
  • High-satisfaction core loop drives organic install velocity
  • Simple controls minimize onboarding friction for casual segments
  • Physics-based construction loop sustains high session frequency
  • Modular weapon system provides clear progression paths
Weaknesses
  • No meta-driven progression system to reward daily engagement
  • Lack of social leaderboard integration limits competitive community growth
  • Ad-frequency complaints in reviews drive churn
  • Technical instability during events degrades competitive experience
  • Lack of content updates leads to long-term boredom
  • Absence of social hubs limits long-term retention
  • Reliance on ad-monetization creates friction for power users
  • Critical cloud-save and data loss bugs
  • Unstable ad SDK causing app crashes
  • Aggressive ad frequency for non-paying users
  • Persistent save-data loss across platforms
  • No cross-platform account migration
  • Aggressive early-game difficulty spikes
  • Excessive ad frequency disrupts match flow
  • Map-collision bugs cause competitive frustration
  • No ad-free purchase option
  • Aggressive ad-load strategy driving high user frustration
  • Misleading 'offline' play perception causing 'scam' accusations
  • Lack of deep meta-progression or RPG elements compared to newer rivals
  • 1.6★ Android-iOS rating gap indicates poor optimization
  • Lack of social-retention mechanics limits LTV
  • Excessive ad frequency triggers high churn
  • Forced online connectivity limits accessibility
  • Physics engine instability during rapid movement
Pricingfreefreemiumfreemiumfreemiumfreemiumfreemiumfreemiumfreemiumfreemium
MomentumZombie-IntenseActiveActiveMaintenanceMaintenanceActiveMaintenance
Update Cadence1 versions-5 versions, ~5d avg5 versions, 3 majors/6mo, ~9d avg5 versions, 2 majors/6mo, ~12d avg2 versions, ~45d avg5 versions, ~3d avg5 versions, 2 majors/6mo, ~5d avg5 versions, ~45d avg

Compare Fish IO: Be the King head-to-head

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with editorial review, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Fish IO: Be the King, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

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