| Core Identity |
| Developer | Tripledot Studios | Easybrain | PlayStudios | Gram Games | Oakever Games | Big Cake | Fanatee | Easybrain Ltd | Vita Studio. | BitMango, Inc. |
| Category | Games | Puzzle | Games | Games | Games | Puzzle | Games | Games | Puzzle | Games |
| Platform | iOS, Android | Android | iOS, Android | Android, iOS | iOS, Android | iOS, Android | Android, iOS | iOS | Android, iOS | Android, iOS |
| Store Metrics |
| Rating | 4.7 / 5 | 4.5 / 5 | 4.5 / 5 | 4.3 / 5 | 4.7 / 5 | 4.7 / 5 | 4.7 / 5 | 4.8 / 5 | 4.6 / 5 | 4.7 / 5 |
| Ratings Count | 656,118 | 1,263,159 | 452,234 | 22,790 | 429,833 | 1,130,916 | 283,379 | 1,816,450 | 43,524 | 7,609 |
| Price | Free | Free | Free | Free | Free | Free | Free | Free | Free | Free |
| Release Date | Mar 11, 2020 | Nov 22, 2019 | Jan 22, 2020 | Sep 25, 2014 | Jun 20, 2019 | Jun 17, 2020 | Mar 8, 2017 | Mar 30, 2017 | Sep 24, 2023 | Nov 15, 2018 |
| Last Updated | May 28, 2026 | Mar 24, 2026 | Apr 14, 2026 | Apr 17, 2026 | Mar 4, 2026 | Apr 17, 2026 | May 5, 2026 | Mar 24, 2026 | Apr 2, 2026 | Apr 9, 2026 |
| Sentiment & Reviews |
| Sentiment | mixed | mixed | terrible | negative | negative | mixed | mixed | negative | positive | - |
| Score | 45/100 | 55/100 | 15/100 | 25/100 | 25/100 | 65/100 | 35/100 | 22/100 | 85/100 | - |
| Praises | - Meditative and soothing puzzle mechanics provide a reliable daily stress relief habit for players
| - Engaging Gameplay
- Simple and Accessible
| - Core gameplay mechanics remain faithful to the nostalgic original experience for long-term players
| - Core puzzle gameplay remains a meditative and addictive experience for long-term players
| - Core block puzzle mechanics provide a satisfying and addictive experience for casual players
| - Relaxing puzzle mechanics provide a reliable way to unwind during daily downtime for casual players
| - Educational crossword mechanics provide a relaxing and mentally stimulating daily habit for long-term players
| | - Stress-free gameplay mechanics
| - |
| Complaints | - Excessive ad frequency interrupts the flow of gameplay and forces frequent app restarts
| - Excessive Advertising
- Rigged Difficulty
| - Aggressive ad frequency and forced ad-walls interrupt the flow of gameplay after every round
| - Post-update technical instability causes frequent freezing and system-wide device crashes
- Aggressive monetization and forced ad frequency degrade the classic user experience
| - Aggressive ad frequency post-update disrupts the flow and forces players to restart the application
- Visual and layout changes following the latest update alienate long-term players who preferred the original design
| - Aggressive advertisement frequency disrupts the flow of gameplay and persists even after paid removal
| - Aggressive ad frequency and intrusive ad behavior disrupt the core gameplay loop post-update
| - Excessive Ad Frequency
- Malicious Ad Content
| | - |
| Requests | - Purchase option for an ad-free experience to remove current monetization friction
| - | - Permanent one-time payment option to remove advertisements instead of the current monthly subscription
| - Classic mode toggle requested to remove intrusive new features and frenzy modes
| - Implementation of a paid option to remove advertisements for a smoother user experience
| - Reliable ad-free experience for paying users to ensure the purchase value is actually delivered
| - Permanent ad-free purchase option requested to replace the current high-cost monthly subscription model
| - | - Advanced progression modes
| - |
| Strategic Intel |
| Strengths | - Meditative puzzle loop sustains daily habit
- Offline-first architecture captures transit-based engagement
| - Massive social proof (1.2M+ ratings)
- Unique 9x9 Sudoku clearing mechanic
- Strong live-ops with Seasonal Events and animated rewards
| - Globally recognized brand equity sustains organic install velocity
- myVIP loyalty program creates a B2B distribution moat into hospitality partnerships
| - Infinite-grid mechanic provides meditative, low-cognitive-load experience
- Established brand presence across mobile stores
| - Offline-first architecture enables access in low-connectivity markets
- Minimalist 8x8 grid loop provides high-frequency, low-cognitive-load retention
| - Daily Challenge retention loop sustains DAU/MAU ratios
- Offline-first architecture captures low-connectivity segments
- 8x8 grid mechanics provide high-familiarity entry point
| - Narrative-driven world progression sustains long-term retention
- 11-language library functions as a B2B distribution barrier
- Trivia-based crossword mechanics provide a high-frequency daily habit
| - 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
| - Minimalist wood-themed UI appeals to traditional puzzle purists
- Offline-first architecture maximizes accessibility in low-connectivity markets
| - |
| Weaknesses | - Aggressive ad-load triggers high churn
- Post-update stability issues erode trust
- No paid ad-free tier
| - Aggressive ad frequency (top churn risk)
- Perceived 'rigged' difficulty spikes
- Misleading UA creative vs actual gameplay
| - Subscription-only ad removal model creates high churn
- Forced online connectivity requirements cause frequent boot failures
| - Technical instability causes system-wide device crashes
- Aggressive ad-frequency degrades core user experience
- 24-hour play limits frustrate veteran players
| - Aggressive ad frequency post-update drives churn
- Lack of ad-free IAP option limits monetization ceiling
- Visual overhaul alienated long-term user base
| - Paid ad-removal failure triggers refund surges
- 0.7★ Android-iOS rating gap indicates technical debt
- Repetitive audio feedback leads to long-term stagnation
| - Aggressive ad frequency disrupts the core gameplay loop
- Technical instability post-update causes loading failures
- No permanent ad-free purchase option for loyal users
| - Aggressive mid-game ad interruptions
- High $18 ad-removal price point
- Lack of Dark Mode for night-time play
| - Absence of IAP or subscription gates limits revenue per user
- Static gameplay loop lacks long-term retention hooks
| - |
| Pricing | freemium | freemium | freemium | freemium | freemium | freemium | freemium | freemium | free | freemium |
| Momentum | Active | - | Active | Active | Maintenance | Active | Active | Maintenance | Intense | Intense |
| Update Cadence | 5 versions, ~10d avg | - | 5 versions, ~5d avg | 5 versions, 4 majors/6mo, ~6d avg | 5 versions, ~19d avg | 4 versions, ~8d avg | 5 versions, 5 majors/6mo, ~16d avg | 2 versions, ~29d avg | 5 versions | 5 versions |
