15 - Fifteen Number Puzzle
15 is a minimalist sliding-tile logic game for casual players on iOS.
The App DNA
What makes this app unique?
It removes the connectivity dependency and aggressive monetization found in modern puzzle titles, serving users who prefer a distraction-free, traditional experience.
For Puzzle enthusiasts and casual gamers looking for a traditional, distraction-free math logic game.
What does it look like?
Key features
Grid sizes ranging from 3x3 for beginners to 6x6 for veterans
Allows users to set personal images as the puzzle board background
Enables gameplay without an active internet connection
How much does it cost?
The app is currently offered as a free product with no visible in-app purchase or subscription gates.
Velocity
Maintenance developmentperformanceopaqueShow more...
The app currently operates in a maintenance state, with only one release shipped in the last 120 days. Development is limited to minor performance improvements, with no evidence of new features or live operations. The cadence remains infrequent, averaging less than one release every three months. The latest release provides no insight into future development, as the changelog remains generic.
Who built it?
Yauhen Siarko
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What do users think recently?
The recent review mood reads thrilled. Users appreciate physical board game heritage provides a nostalgic and familiar experience for long-term fans of the title and customizable board sizes and varied play modes keep the gameplay loop engaging for different skill levels.
How are ratings & reviews evolving?
What users say, by theme
- Physical board game heritage provides a nostalgic and familiar experience for long-term fans of the title
- Customizable board sizes and varied play modes keep the gameplay loop engaging for different skill levels
- Integrated stat tracking allows players to monitor their progress and performance over multiple game sessions
3 of 3 recent reviews analyzed · limited sample
Read the full review analysisCompetition
Competitive landscape for 15 - Fifteen Number Puzzle
How's the Games market?
15 maintains a 5.0 rating across 8 total ratings, indicating high satisfaction among its small user base. The lack of monetization gates positions it as a non-commercial alternative to ad-heavy puzzle rivals.
Read the market outlookThe rivals identified
Unlock the deeper market read.
Access the full report for freeThe Analyst's Read
Key takeaways for 15 - Fifteen Number Puzzle
Where is it heading?
The casual puzzle market is consolidating around titles with frequent live-ops and aggressive monetization, leaving 15 exposed due to its lack of revenue generation. The app must pivot toward a sustainable monetization model to avoid being sidelined by more active competitors.
- The 120-day update gap indicates a maintenance-only posture that prevents the app from competing with more active puzzle titles.
- High user satisfaction (5.0 rating) provides a stable foundation for introducing monetization without alienating the core audience.
The SWOT
- Offline-first architecture removes connectivity dependency
- Minimalist design reduces cognitive load for casual sessions
- Implement optional ad-supported hints to monetize the existing user base
Next best moves
Audit the current user experience for potential ad-integration points because the app lacks any revenue stream despite positive sentiment → unlock sustainable development funding.
+ 1 more prioritized moveThe counter-intuitive read
The app's lack of monetization is not a…
Read the full takeBottom line
15 successfully captures a niche audience through its minimalist, offline-first design, but the lack of monetization and dormant update cadence limits its long-term viability. Introducing light monetization would unlock the resources needed to sustain the product.
Unlock 2 critical frictions, 1 market threat, 1 more prioritized move and the analyst’s take.
Access the full report for freeFAQ
Is 15 free to play?
Does 15 require an internet connection?
What makes 15 different from other puzzle games?
Sources
- [1] App Store
Report last updated