| Core Identity |
| Developer | GAMINCAT, INC. | Tripledot Studios | MobilityWare | Easybrain | Kiragames Co., Ltd. | Big Duck Games LLC | Moon Active |
| Category | Games | Games | Games | Puzzle | Games | Games | Games |
| Platform | Android, iOS | Android, iOS | iOS, Android | Android | iOS, Android | iOS, Android | Android, iOS |
| Store Metrics |
| Rating | 4.6 / 5 | 4.7 / 5 | 4.6 / 5 | 4.5 / 5 | 4.8 / 5 | 4.8 / 5 | 4.6 / 5 |
| Ratings Count | 44,913 | 656,118 | 14,390 | 1,263,159 | 37,273 | 392,918 | 255,178 |
| Price | Free | Free | Free | Free | Free | Free | Free |
| Release Date | Jul 11, 2018 | Mar 11, 2020 | Jun 3, 2020 | Nov 22, 2019 | May 16, 2009 | Jun 7, 2012 | Jul 7, 2021 |
| Last Updated | Dec 14, 2023 | May 28, 2026 | Dec 9, 2025 | Mar 24, 2026 | Apr 10, 2026 | Jan 16, 2026 | Apr 13, 2026 |
| Sentiment & Reviews |
| Sentiment | mixed | mixed | negative | mixed | mixed | positive | negative |
| Score | 65/100 | 45/100 | 25/100 | 55/100 | 65/100 | 75/100 | 25/100 |
| Praises | - Relaxing puzzle mechanics provide a satisfying mental challenge for casual players
| - Meditative and soothing puzzle mechanics provide a reliable daily stress relief habit for players
| | - Engaging Gameplay
- Simple and Accessible
| - Adjustable difficulty settings allow players to tailor the challenge to their personal skill level
| - Satisfying puzzle mechanics provide a relaxing and addictive mental challenge for daily play
| |
| Complaints | - Excessive ad frequency disrupts the flow of gameplay for free users
| - Excessive ad frequency interrupts the flow of gameplay and forces frequent app restarts
| - Intrusive and Broken Ads
- App Stability and Data Loss
| - Excessive Advertising
- Rigged Difficulty
| - Aggressive ad frequency and intrusive ad behavior disrupt the core relaxing gameplay experience
| - Aggressive advertising frequency interrupts the flow of gameplay and frustrates active users
| - Removal of Core Features
- Excessive Advertising
|
| Requests | - Additional level packs are needed to extend the lifespan for long-term players
| - Purchase option for an ad-free experience to remove current monetization friction
| - | - | - Reliable cloud synchronization functionality to ensure progress is saved across multiple devices
| - Additional level content requested by long-term players who have completed all current challenges
| - |
| Strategic Intel |
| Strengths | - Minimalist aesthetic supports the mindfulness value proposition
- Offline-first architecture enables play in low-data environments
| - Meditative puzzle loop sustains daily habit
- Offline-first architecture captures transit-based engagement
| - Unique hybrid Sudoku-block mechanics
- Massive content depth (99,999+ levels)
- Established developer (MobilityWare) with strong distribution
| - Massive social proof (1.2M+ ratings)
- Unique 9x9 Sudoku clearing mechanic
- Strong live-ops with Seasonal Events and animated rewards
| - Tactile woody aesthetic provides premium feel
- 18,000-puzzle library sustains long-term engagement
- Established brand legacy fosters user trust
| - Color-blind accessibility labels expand addressable market
- 2,500+ level library creates high switching costs
- Game Center integration gamifies long-term progress
| - Massive user base of 35M+ people
- Deep meta-game features (Zen Room, Plant Care)
- Strong Live-Ops with Zen Masters League
|
| Weaknesses | - Ad-removal purchase failure creates direct revenue leakage
- Technical distortion on non-standard screen ratios erodes UI quality
| - Aggressive ad-load triggers high churn
- Post-update stability issues erode trust
- No paid ad-free tier
| - Critical ad-related technical instability
- Lack of cloud-save leading to user data loss
- Aggressive monetization disrupting the 'relaxing' UX
| - Aggressive ad frequency (top churn risk)
- Perceived 'rigged' difficulty spikes
- Misleading UA creative vs actual gameplay
| - Cloud synchronization failures prevent progress recovery
- Aggressive ad-frequency causes game freezes
- Lack of permanent ad-removal options
| - Ad-close button failure rate creates high friction
- Interstitial frequency exceeds user tolerance
- Lack of meta-progression layer limits session depth
| - Removal of popular room-decorating feature
- Aggressive ad frequency (post-level ads)
- Intrusive UI pop-ups and clutter
|
| Pricing | freemium | freemium | freemium | freemium | freemium | freemium | freemium |
| Momentum | Zombie | Active | - | - | Maintenance | Maintenance | Active |
| Update Cadence | 2 versions, ~1998d avg | 5 versions, ~10d avg | - | - | 4 versions, 2 majors/6mo, ~38d avg | 5 versions, 4 majors/6mo, ~313d avg | 5 versions, 5 majors/6mo, ~14d avg |
