| Core Identity |
| Developer | Kris Pixton | Easybrain Ltd | Playdots, Inc. | Big Duck Games LLC | Orbital Nine Games Inc | Dynamix Software | Easybrain Ltd | Easybrain Ltd | Egghead Games LLC |
| Category | Games | Games | Games | Games | Games | Games | Games | Games | Games |
| Platform | iOS | iOS, Android | iOS | iOS, Android | iOS, Android | iOS, Android | Android, iOS | iOS | iOS, Android |
| Store Metrics |
| Rating | 4.9 / 5 | 4.6 / 5 | 4.5 / 5 | 4.8 / 5 | 4.5 / 5 | 4.7 / 5 | 4.7 / 5 | 4.8 / 5 | 4.9 / 5 |
| Ratings Count | 65 | 190,336 | 165,813 | 392,918 | 5,061 | 2,333 | 739,052 | 1,816,450 | 38,168 |
| Price | USD0.99 | Free | Free | Free | Free | Free | Free | Free | Free |
| Release Date | Sep 23, 2014 | Mar 8, 2019 | May 29, 2014 | Jun 7, 2012 | Jun 25, 2015 | Nov 19, 2012 | Oct 16, 2017 | Mar 30, 2017 | Sep 30, 2014 |
| Last Updated | May 30, 2018 | Feb 23, 2026 | Apr 28, 2026 | Jan 16, 2026 | Mar 27, 2026 | Mar 5, 2026 | Feb 27, 2026 | Mar 24, 2026 | Apr 4, 2026 |
| Sentiment & Reviews |
| Sentiment | excellent | negative | negative | positive | mixed | - | mixed | negative | - |
| Score | 90/100 | 35/100 | 25/100 | 75/100 | 55/100 | - | 45/100 | 22/100 | - |
| Praises | - Challenging logic puzzles provide consistent entertainment value for long-term dedicated players
| - Core Gameplay Enjoyment
- Relaxing Experience
| - Core puzzle mechanics provide a relaxing and addictive experience for long-term players
| - Satisfying puzzle mechanics provide a relaxing and addictive mental challenge for daily play
| - Challenging physics-based puzzles stimulate cognitive engagement and provide a rewarding sense of accomplishment
| - | - Relaxing core gameplay loop provides a reliable stress relief mechanism for daily users
| | - |
| Complaints | - | - Excessive Advertising
- UI/UX Limitations
| - Excessive pop-up advertisements and event notifications block access to the main game
| - Aggressive advertising frequency interrupts the flow of gameplay and frustrates active users
| - Excessive and intrusive ad frequency disrupts the core gameplay loop and creates frustration
| - | - Excessive ad frequency disrupts the relaxing experience and makes the app feel unplayable
| - Excessive Ad Frequency
- Malicious Ad Content
| - |
| Requests | - Frequent release of additional puzzle content to sustain long-term player engagement
| - | - Dark mode interface requested to reduce eye strain during extended play sessions
| - Additional level content requested by long-term players who have completed all current challenges
| - Customization options for in-game aesthetics like seasonal wallpapers to refresh the visual experience
| - | - One-time payment option to remove ads instead of recurring monthly subscription fees
| - | - |
| Strategic Intel |
| Strengths | - Thematic quote rewards reinforce habit-forming completion loops
- 18+ title portfolio creates a low-cost cross-selling funnel
| - Massive user base (1M+ ratings) providing high social proof
- Advanced live-ops engine with Tournaments and Seasonal Events
- Clean, minimalist design that appeals to casual users
| - Minimalist art style differentiates the brand
- Event-based content loops sustain daily usage
- Accessibility features expand addressable market
| - Color-blind accessibility labels expand addressable market
- 2,500+ level library creates high switching costs
- Game Center integration gamifies long-term progress
| - Community-generated level library sustains content variety without constant developer overhead
- Physics-based drawing mechanic creates a distinct cognitive challenge versus standard match-3 titles
| - | - 40,000+ image library functions as a content-based distribution barrier
- Gaming-expert design framework provides a superior meditative UX
- Meta-game rewards drive session frequency
| - Massive scale (1.8M+ ratings) providing high ASO authority
- Strong live-ops via Seasonal Events and Daily Challenges
- Clean, preferred UI for core Sudoku gameplay
| - |
| Weaknesses | - Static 99-puzzle limit caps long-term retention
- Lack of daily-updated content loses casual players to high-velocity competitors
| - Aggressive ad strategy interrupting active gameplay
- Lack of zoom/scroll functionality for large grids
- Alienating reward structure changes (keys/books system)
| - Excessive ad-interruption frequency
- Technical loading failures post-update
- Perceived pay-to-win difficulty spikes
| - Ad-close button failure rate creates high friction
- Interstitial frequency exceeds user tolerance
- Lack of meta-progression layer limits session depth
| - 4.25 rating on Android vs 4.54 on iOS indicates platform-specific instability
- Ad-frequency complaints are the #1 churn driver in user reviews
| - | - Ad frequency disrupts the core relaxing experience
- High monthly subscription cost prevents casual conversion
- Touch interaction regressions increase physical fatigue
| - Aggressive mid-game ad interruptions
- High $18 ad-removal price point
- Lack of Dark Mode for night-time play
| - |
| Pricing | paid | freemium | freemium | freemium | freemium | freemium | freemium | freemium | freemium |
| Momentum | - | - | Active | Maintenance | Maintenance | Active | Maintenance | Maintenance | Intense |
| Update Cadence | - | - | 3 versions, 2 majors/6mo, ~14d avg | 5 versions, 4 majors/6mo, ~313d avg | 2 versions, 2 majors/6mo, ~1d avg | 5 versions | 2 versions, ~7d avg | 2 versions, ~29d avg | 5 versions |
