KAMI 2 vs ⊷ ONE LINE
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
KAMI 2
This game challenges players to fill each puzzle with a single color using the fewest moves possible. It offers over 100 handcrafted puzzles, daily challenges, and the ability to create and share your own designs.
- Hand-crafted puzzles
- Single color flood mechanic
- Fewest moves challenge
- Daily challenges
- User-generated puzzles
- Puzzle builder
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Sequel to #1 puzzle game, KAMI The calming yet addictive puzzle game is back! With over 100 hand-crafted puzzles, Kami 2 takes you on a mind-twisting journey that combines logic and problem-solving. Can you achieve perfection? Flood each puzzle with a single color in as few moves as possible to claim a 'Perfect' sticker. But watch out for subtle new tricks and fiendish surprises. Want even more? Beat the global Daily Challenge, earn a winning streak and compare your scores to other players. Test yourself on thousands of user-generated puzzles, uploaded daily. Get creative and take on the world. Craft your own KAMI designs using the Puzzle Builder. Design and share your creations, send them to your friends and challenge the world to match your score.
⊷ ONE LINE
This brain game offers simple yet challenging puzzles designed to activate your mind and improve your IQ. Track your progress with IQ results and enjoy a relaxing, immersive environment. It's a battery-friendly way to exercise your logic and analytical skills.
- Challenging puzzle levels
- IQ progress tracking
- Hint system for difficult levels
- Relaxing and immersive design
- Minimalistic user interface
- Soothing background music
- Leaderboards and sharing options
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⊷ ONE LINE is a brain game. The best snack to activate your brain every time wherever you are. Routine and the excessive use of technology tend to numb your brain with certain behaviors and patterned ways of thinking, lowering your creativity and IQ levels day after day. Thinking on this, every occasion is a good one to give your brain a push. This game uses technology to exercise your brain with simple but tricky puzzle levels, improving your IQ gradually. IQ results are provided with your progress. ⊷ ONE LINE is the best way to test your intelligence and logic skills. A couple of minutes each day will improve your brain abilities and test your IQ with qualitative and analytical scales. Are you Einstein’s first cousin or dumb as a brick? Just like knowledge does not occupy place, ⊷ ONE LINE will also not overload your device memory. This is a battery-friendly game, which means we will not drain your energy either. ⊷ ONE LINE features: • Challenging levels: find new tests with your progress and improve your IQ. • Hints: would you appreciate some help? Use hints to find the right answer for a difficult level. • IQ scale: just a small percentage of our audience achieve to complete our harder levels. Are you part of those? • Relaxing and Immersive environment: a minimalistic and beautiful design merged with soothing music will relax your muscles and tease your brain. • Ranking: show your friends who is the real genius by sharing some solutions from the harder levels or simply showing ⊷ ONE LINE ranking tables. You can always send us gameplay screenshots, so we can know which level you are playing or if you are struggling in a certain level. We always enjoy receiving some feedback from our players and we will truly appreciate your message. Do you like our work? Connect below: • Listen to our stories: https://www.instagram.com/8infinitygames/ • Learn more about us: https://www.infinitygames.io/ • Show us your love: https://www.facebook.com/infinitygamespage • Follow our steps: https://twitter.com/8infinitygames
Screenshots
Verdict
The clearest difference is ads: ⊷ ONE LINE at none against KAMI 2's shown. ⊷ ONE LINE also leads on iOS requirement (8.0 vs 15.0). KAMI 2's advantage is ratings volume (15K vs 328) and update cadence (every 2 months vs every 6 months). On price, rating, in-app purchases and monetization model 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
Both are free to download. KAMI 2 sells 7 one-off in-app purchases and ⊷ ONE LINE sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.7 for KAMI 2 against 4.7 for ⊷ ONE LINE. That said, the two scores are not equally well evidenced: KAMI 2 has 15K ratings behind it against 328, so its average is the more settled of the two. Written reviews are what separate them: 84% of KAMI 2's written reviews are positive against 71% of ⊷ ONE LINE's.
KAMI 2 ships an update every 2 months, ⊷ ONE LINE every 6 months. Both last shipped on October 17, 2026.
| Parameter | KAMI 2 | ⊷ ONE LINE |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (15K ratings) | 4.7 (328 ratings) |
| Positive reviews | 83.8% of reviews — better | 71.4% of reviews |
| Number of ratings | 15K — better | 328 |
| Update frequency | Every 2 months — better | Every 6 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 8.0 — better |
| Further details — not scored | ||
| Size | 396 MB | 158 MB |
| Age rating | 4+ | 4+ |
| Developer | State of Play Games | INFINITY GAMES, LDA |
Customer experience
KAMI 2
⊷ ONE LINE
User reviews
KAMI 2
From 15K App Store ratingsWhat we love
- 🌟 Beautiful visuals and soothing audio
- 🧠 Challenging and brain-stimulating puzzles
- 🔍 Ability to create and publish custom puzzles
- 🕰️ Relaxing and calming gameplay experience
Room to improve
- 💰 Excessive use of ads and in-app purchases for hints
- 🐛 Connectivity issues and server problems
- 🤯 Difficulty spike in later levels with no free hints
- 📱 Compatibility issues on certain devices
⊷ ONE LINE
From 328 App Store ratingsWhat we love
- 👍 Fun and relaxing gameplay
- 🎵 Calming music
- 💰 One-time fee for ad-free experience
- 🧠 Smart puzzle design
- ✨ Beautifully made game
Room to improve
- anúncios Insane ads
- 🤔 Puzzles can be too easy
- 😵 Confusing IQ score
- 💸 Ads have sound even when muted
Bugs and requests
KAMI 2
Reported bugs
3 issues- Daily puzzles not loading or resetting incorrectly
- User-created puzzles not saving or syncing properly
- App freezing or crashing on certain devices
Requested features
4 requests- Earn free hints through gameplay achievements
- Option to undo moves or restart puzzles
- Improved puzzle search and discovery
- Colorblind accessibility features
⊷ ONE LINE
Reported bugs
3 issues- Line freezes during drawing
- Phantom line glitches on screen
- App requires force restart
Requested features
3 requests- Make puzzles more challenging
- Clarify or change the IQ score to a game rating
- Improve line thickness consistency
In-app purchases
KAMI 2
- 3 Hints$0.99
- Special Palettes 1$0.99
- Special Palettes 2$0.99
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- Special Palettes 3$0.99
- 10 Hints$1.99
- 30 Hints$4.99
- 75 Hints$9.99
⊷ ONE LINE
- Remove Ads$1.99
- Remove Ads Bundle 2$3.99
- Remove Ads Bundle 3$5.99
Show 2 moreShow fewer
- Remove Ads Bundle 4$9.99
- Remove Ads Bundle 5$19.99









