| Core Identity |
| Developer | BoomBit, Inc. | Solebon LLC | Sirvo LLC | Big Duck Games LLC | Easybrain Ltd | Tripledot Studios | Moon Active | Metacore Games Oy |
| Category | Games | Games | Games | Games | Games | Games | Games | Games |
| Platform | iOS | Android, iOS | iOS, Android | iOS, Android | iOS | Android, iOS | Android, iOS | Android, iOS |
| Store Metrics |
| Rating | 4.4 / 5 | 4.8 / 5 | 4.0 / 5 | 4.8 / 5 | 4.8 / 5 | 4.7 / 5 | 4.6 / 5 | 4.6 / 5 |
| Ratings Count | 31 | 29,863 | 2,992 | 392,918 | 1,816,450 | 657,144 | 255,178 | 197,753 |
| Price | Free | Free | $5.99 | Free | Free | Free | Free | Free |
| Release Date | Jul 24, 2020 | May 5, 2014 | Feb 6, 2014 | Jun 7, 2012 | Mar 30, 2017 | Mar 11, 2020 | Jul 7, 2021 | Sep 16, 2020 |
| Last Updated | Aug 28, 2020 | Mar 5, 2026 | Jun 3, 2025 | Jan 16, 2026 | Mar 24, 2026 | May 28, 2026 | Apr 13, 2026 | Jul 14, 2026 |
| Sentiment & Reviews |
| Sentiment | mixed | mixed | - | positive | negative | mixed | negative | negative |
| Score | 45/100 | 55/100 | - | 75/100 | 22/100 | 45/100 | 25/100 | 25/100 |
| Praises | - Addictive number-matching gameplay loop keeps players engaged during short sessions
| - Engaging Gameplay
- Offline Accessibility
| - | - Satisfying puzzle mechanics provide a relaxing and addictive mental challenge for daily play
| | - Meditative and soothing puzzle mechanics provide a reliable daily stress relief habit for players
| | - The core merge gameplay loop provides a relaxing and engaging experience for long-term players
- The visual design and vibrant interface updates bring more life to the game environment
|
| Complaints | - Aggressive ad frequency post-update makes the core gameplay experience feel unplayable
| - Aggressive Advertising
- Technical Bugs and Stability
| - | - Aggressive advertising frequency interrupts the flow of gameplay and frustrates active users
| - Excessive Ad Frequency
- Users report: malicious Ad Content
| - Excessive ad frequency interrupts the flow of gameplay and forces frequent app restarts
| - Removal of Core Features
- Excessive Advertising
| - The recent layout changes force users to navigate confusing menus and small, poorly placed buttons
- Aggressive monetization and pay-to-win mechanics make progression impossible for non-paying players
- Technical instability and loading freezes prevent players from accessing the game after the latest update
|
| Requests | - Paid ad-free version requested to improve the overall user experience
| - | - | - Additional level content requested by long-term players who have completed all current challenges
| - | - Purchase option for an ad-free experience to remove current monetization friction
| - | - Players request an option to revert the interface to the previous, more intuitive layout
- Users want the ability to disable the forced auto-merge feature to maintain control over their board
|
| Strategic Intel |
| Strengths | - 16-language localization enables global market penetration
- Offline gameplay maintains engagement in low-bandwidth segments
| - Official branding and 'original' status
- Highly addictive core gameplay loop
- Polished, high-resolution design
| - | - Color-blind accessibility labels expand addressable market
- 2,500+ level library creates high switching costs
- Game Center integration gamifies long-term progress
| - 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
| - Meditative puzzle loop sustains daily habit
- Offline-first architecture captures transit-based engagement
| - Massive user base of 35M+ people
- Deep meta-game features (Zen Room, Plant Care)
- Strong Live-Ops with Zen Masters League
| - Mystery-driven narrative IP creates a defensible engagement barrier
- Core merge loop sustains high session frequency
|
| Weaknesses | - No paid ad-free tier despite high user demand
- Aggressive ad density post-update triggers negative sentiment
| - Aggressive and intrusive advertising
- Technical instability and bugs
- Forced account creation friction
| - | - Ad-close button failure rate creates high friction
- Interstitial frequency exceeds user tolerance
- Lack of meta-progression layer limits session depth
| - Aggressive mid-game ad interruptions
- High $18 ad-removal price point
- Lack of Dark Mode for night-time play
| - Aggressive ad-load triggers high churn
- Post-update stability issues erode trust
- No paid ad-free tier
| - Removal of popular room-decorating feature
- Aggressive ad frequency (post-level ads)
- Intrusive UI pop-ups and clutter
| - Recent UI overhaul forces navigation friction
- Loading freezes at 50% erode the daily active habit
|
| Pricing | free | free | paid | freemium | freemium | freemium | freemium | freemium |
| Momentum | - | - | Steady | Maintenance | Maintenance | Active | Active | Active |
| Update Cadence | - | - | 5 versions | 5 versions, 4 majors/6mo, ~313d avg | 2 versions, ~29d avg | 5 versions, ~10d avg | 5 versions, 5 majors/6mo, ~14d avg | 5 versions, 3 majors/6mo, ~11d avg |
