15.Puzzle vs Cardinal Chains
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
15.Puzzle
Transform your personal photos into engaging sliding tile puzzles. Enjoy daily curated challenges, track your progress, and compete with others globally. Play quick, satisfying rounds anytime, anywhere.
- Create puzzles from personal photos
- Daily curated puzzles
- Two difficulty levels (3x3, 4x4)
- Global leaderboards
- Smart hint system
- Share solved puzzles
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Turn any picture into a puzzle. Photo Slide Puzzle takes the sliding tile game and adds the one thing it was always missing: your photos. Pick an image from your camera roll, snap a fresh one, or play today's curated daily puzzle. Every picture becomes a satisfying sliding puzzle you race to reconstruct. WHAT'S INSIDE - Your photos, your puzzles. Use any image from your library or take one with the camera. Family moments, vacation snapshots, pet portraits — anything becomes a puzzle you actually care about solving. - A new daily puzzle every day. Open the app each morning to find a fresh curated image. Solve consecutive days to build your streak — see how far you can go. - Two difficulty levels. Easy (3×3) for a quick session in line at the coffee shop, Hard (4×4) for a real challenge. - Live scoring and best-time tracking. Beat your personal records, then climb the Game Center leaderboards against players around the world. - Smart hint system. Stuck on a tricky puzzle? Use a peek to glance at the original image. Watch a short video to have one piece snapped automatically into its correct spot. - Designed for iPhone and iPad. Rotate freely — the puzzle reflows. Sharp at every screen size, in Split View, and on every recent device. - Made for fast, satisfying sessions. Each round runs 2 to 4 minutes. Perfect for waiting rooms, commutes, lunch breaks, and the ten minutes before bed. - Share your solves. Send a finished puzzle as an image to friends and family. NO LOGIN. NO SUBSCRIPTION. NO REGISTRATION. Just open the app and play. Game Center sign-in is optional and only used for global leaderboards. We hope you love it. If you do, please leave a review — it genuinely helps small developers keep building.
Cardinal Chains
A minimalist puzzle game where players link numbers in non-decreasing sequences to fill a monochrome grid with color. It offers a relaxing experience with a handcrafted soundtrack and elegant design, free from timers or ads.
- 500 unique handcrafted puzzles
- Non-decreasing sequence gameplay
- Chill-out soundtrack
- Minimalist design
- Customizable color themes
- Achievements and cloud saves
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Cardinal Chains is a minimalist puzzle game centering on the concept of non-decreasing sequences. Each puzzle begins with a monochrome grid of numbers, plus a few colored cells marked with an X. Starting at these cells, you must link up numbers in non-decreasing order until the whole grid is filled with color. • 500 unique, carefully handcrafted puzzles of varying difficulty, each with a single solution • Beautiful, lengthy chill-out soundtrack created by accomplished professional artists • Minimalist, elegant design without timers, ads, purchases or other hassles - just pure gameplay • Several built-in color themes, including colorblind options. Or... • ...make your own color themes - right from within the game! • Features achievements and cloud saves
Screenshots
Verdict
The clearest difference is price: 15.Puzzle at Free against Cardinal Chains's $2.99. 15.Puzzle also leads on update cadence (every 3 weeks vs every 5 months). Cardinal Chains's advantage is rating (4.9 vs 4.3) and ratings volume (24 vs 4). On ads, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
15.Puzzle is free to download; Cardinal Chains costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Cardinal Chains holds the better App Store score, 4.9 against 4.3. That said, the two scores are not equally well evidenced: Cardinal Chains has 24 ratings behind it against 4, so its average is the more settled of the two.
15.Puzzle ships an update every 3 weeks, Cardinal Chains every 5 months. The most recent releases landed on September 1, 2026 and July 8, 2026 respectively.
| Parameter | 15.Puzzle | Cardinal Chains |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 4.3 (4 ratings) | 4.9 (24 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 4 | 24 — better |
| Update frequency | Every 3 weeks — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.6 |
| Further details — not scored | ||
| Size | 12 MB | 101 MB |
| Age rating | 4+ | 4+ |
| Developer | Bothina Elzoobi | Daniel Nora |
Customer experience
15.Puzzle
Cardinal Chains
In-app purchases
15.Puzzle
No in-app purchases
Cardinal Chains
No in-app purchases






