| Core Identity |
| Developer | King | GHOST STUDIO Co., Limited | BFG Entertainment Inc. | Supertreat | Vita Studio |
| Category | Games | Games | Games | Games | Games |
| Platform | Android, iOS | iOS, Android | iOS, Android | Android, iOS | iOS, Android |
| Store Metrics |
| Rating | 4.7 / 5 | 4.7 / 5 | 4.6 / 5 | 4.8 / 5 | 4.8 / 5 |
| Ratings Count | 45,768 | 169,510 | 153,231 | 477,547 | 458,435 |
| Price | Free | Free | Free | Free | Free |
| Release Date | Dec 31, 2013 | Oct 9, 2018 | Mar 18, 2015 | Jun 21, 2017 | Apr 25, 2023 |
| Last Updated | Apr 21, 2026 | Apr 29, 2026 | Apr 9, 2026 | Apr 9, 2026 | May 14, 2026 |
| Sentiment & Reviews |
| Sentiment | mixed | mixed | - | mixed | mixed |
| Score | 35/100 | 45/100 | - | 53/100 | 65/100 |
| Praises | - Core card-matching gameplay remains highly addictive and mentally stimulating for long-term players
- Absence of forced advertisements provides a cleaner experience compared to competitor card games
| - Merging mechanics and side games provide a relaxing and enjoyable core gameplay experience for casual players
| - | - Engaging Gameplay
- Mental Stimulation
| - Large card visuals and clear layout design assist seniors in maintaining focus during long play sessions
|
| Complaints | - Frequent application crashes following the latest update prevent users from accessing their progress
- Removal of social life-sharing features disrupts the community interaction loop for established players
| - Frequent and intrusive advertisements disrupt the flow of gameplay and frustrate long-term users
| - | - Aggressive Monetization
- Technical Ad Issues
| - Aggressive advertisement frequency and deceptive exit buttons disrupt the flow of the game for many users
|
| Requests | - Cloud-based progress synchronization is needed to prevent data loss during reinstallation or device changes
| - Cross-device progress synchronization is required to prevent data loss when switching hardware
| - | - | - One-time purchase option to permanently remove advertisements and support the developers without ongoing interruptions
|
| Strategic Intel |
| Strengths | - Established King brand equity provides a premium-feeling UI and animation set
- Refined difficulty curve benefits from extensive casual puzzle design experience
| - Merge-puzzle meta-layer increases session length
- Offline play removes friction for acquisition
| - | - Exclusive IP integrations (Popeye) driving seasonal interest
- Tangible 'idle' harvest loop rewarding return sessions
- Strong brand recognition with over 2.6M total ratings
| - Large-card accessibility design reduces friction for the senior demographic
- Minimalist interface minimizes cognitive load for long-term retention
|
| Weaknesses | - Frequent application crashes following the latest update
- Removal of social life-sharing features
- Aggressive monetization pressure at high levels
| - Subscription tier above casual-game median
- Technical instability erodes daily active habit
| - | - Aggressive coin-sink at high levels causing 'pay-to-win' perception
- Technical instability in the ad-reward system (freezing)
- Lack of social 'Clubs' or collaborative features
| - Aggressive ad-frequency drives negative sentiment
- Lack of one-time purchase option limits conversion
|
| Pricing | freemium | subscription | freemium | freemium | freemium |
| Momentum | Steady | Active | Intense | Maintenance | Maintenance |
| Update Cadence | 4 versions, 4 majors/6mo, ~10d avg | 5 versions, 3 majors/6mo, ~9d avg | 5 versions | 2 versions, ~1d avg | 5 versions, ~10d avg |
