| Core Identity |
| Developer | Kwalee Ltd | Easybrain Ltd | Tripledot Studios | Easybrain Ltd | Easybrain Ltd | Big Duck Games LLC | Moon Active | Boombox Games LTD |
| Category | Games | Games | Games | Games | Games | Games | Games | Games |
| Platform | Android, iOS | iOS | Android, iOS | iOS | iOS, Android | iOS, Android | Android, iOS | iOS, Android |
| Store Metrics |
| Rating | 4.7 / 5 | 4.8 / 5 | 4.7 / 5 | 4.6 / 5 | 4.6 / 5 | 4.8 / 5 | 4.6 / 5 | 4.9 / 5 |
| Ratings Count | 11,370 | 1,816,450 | 656,220 | 650,189 | 190,336 | 392,918 | 255,178 | 347,704 |
| Price | Free | Free | Free | Free | Free | Free | Free | Free |
| Release Date | Mar 17, 2025 | Mar 30, 2017 | Mar 11, 2020 | Mar 23, 2019 | Mar 8, 2019 | Jun 7, 2012 | Jul 7, 2021 | Apr 13, 2022 |
| Last Updated | Apr 24, 2026 | Mar 24, 2026 | May 28, 2026 | Apr 8, 2026 | Feb 23, 2026 | Jan 16, 2026 | Apr 13, 2026 | May 4, 2026 |
| Sentiment & Reviews |
| Sentiment | negative | negative | mixed | mixed | negative | positive | negative | mixed |
| Score | 25/100 | 22/100 | 45/100 | 48/100 | 35/100 | 75/100 | 25/100 | 35/100 |
| Praises | - Core puzzle mechanics provide a satisfying and addictive mental workout for casual players
| | - Meditative and soothing puzzle mechanics provide a reliable daily stress relief habit for players
| | - Core Gameplay Enjoyment
- Relaxing Experience
| - Satisfying puzzle mechanics provide a relaxing and addictive mental challenge for daily play
| | - Core match-three gameplay loop provides an addictive and relaxing experience for casual players
|
| Complaints | - Forced advertisements after every short level disrupt flow and degrade the user experience
- UI elements and pet overlays obstruct critical board squares during active puzzle solving
- Lack of account synchronization causes total progress and purchase loss when changing devices
| - Excessive Ad Frequency
- Malicious Ad Content
| - Excessive ad frequency interrupts the flow of gameplay and forces frequent app restarts
| - Excessive Advertising
- High Cost of Ad-Free Version
| - Excessive Advertising
- UI/UX Limitations
| - Aggressive advertising frequency interrupts the flow of gameplay and frustrates active users
| - Removal of Core Features
- Excessive Advertising
| - Visual design changes post-update introduce cartoonish, bloated graphics that hinder object identification
- Technical instability and progression resets following the latest update disrupt long-term player retention
|
| Requests | - Offline play capability requested to allow puzzle solving without constant internet connection
- Undo button and move-marking tools requested to improve precision and reduce frustration
| - | - Purchase option for an ad-free experience to remove current monetization friction
| - | - | - Additional level content requested by long-term players who have completed all current challenges
| - | - Option to toggle between the new cartoonish graphics and the original classic visual style
|
| Strategic Intel |
| Strengths | - Unique queen-placement mechanic creates a distinct logic-puzzle alternative to standard Sudoku grids
- Daily mission structure provides a consistent retention hook for recurring daily opens
| - 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
| - Superior Live Ops including Seasonal Events and collectible postcards
- Robust competitive features (Tournaments/Leaderboards)
- High frequency of content updates (last updated March 2026)
| - 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
| - 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
| - Team-based prize pools build community-based switching costs
- Travel-themed event cycles drive recurring daily active usage
- Offline play capability maintains engagement during travel
|
| Weaknesses | - Excessive ad-to-gameplay ratio drives high churn among casual users
- Lack of cloud-save functionality causes total progress loss during device migration
- UI pet overlays obstruct critical board tiles, hindering puzzle precision
| - 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
| - Aggressive ad frequency (interstitials every 80 seconds)
- Polarizing $15 ad-removal price point
- Missing Dark Mode causing eye strain
| - Aggressive ad strategy interrupting active gameplay
- Lack of zoom/scroll functionality for large grids
- Alienating reward structure changes (keys/books system)
| - 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
| - Visual overhaul hinders object identification [latest release]
- Technical instability causes progress resets [latest release]
- Aggressive ad frequency creates friction for progression [user reviews]
|
| Pricing | freemium | freemium | freemium | freemium | freemium | freemium | freemium | freemium |
| Momentum | Active | Maintenance | Active | - | - | Maintenance | Active | Active |
| Update Cadence | 5 versions, 4 majors/6mo, ~9d avg | 2 versions, ~29d avg | 5 versions, ~10d avg | - | - | 5 versions, 4 majors/6mo, ~313d avg | 5 versions, 5 majors/6mo, ~14d avg | 5 versions, 5 majors/6mo, ~9d avg |
