# KAMI 2 vs ⊷ ONE LINE

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.

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. The most recent releases landed on October 18, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | KAMI 2 | ⊷ ONE LINE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (15K ratings)](https://appshunter.io/ios/app/kami-2/id1133161444/reviews) | [4.7 (328 ratings)](https://appshunter.io/ios/app/one-line/id1389762864/reviews) |
| Number of ratings | **15K** | 328 |
| Positive reviews | **83.8% of reviews** | 71.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 6 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 396 MB | 158 MB |
| Requires iOS | 15.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [State of Play Games](https://appshunter.io/developer/494615574) | [INFINITY GAMES, LDA](https://appshunter.io/developer/1088875165) |

## What reviewers say

### KAMI 2

[App page](https://appshunter.io/ios/app/kami-2/id1133161444)

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.

**Highlights:** Hand-crafted puzzles, Single color flood mechanic, Fewest moves challenge, Daily challenges, User-generated puzzles, Puzzle builder

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3 Hints | $0.99 | one-time |
| Special Palettes 1 | $0.99 | one-time |
| Special Palettes 2 | $0.99 | one-time |
| Special Palettes 3 | $0.99 | one-time |
| 10 Hints | $1.99 | one-time |
| 30 Hints | $4.99 | one-time |
| 75 Hints | $9.99 | one-time |

**What reviewers like**

- 🌟 Beautiful visuals and soothing audio
- 🧠 Challenging and brain-stimulating puzzles
- 🔍 Ability to create and publish custom puzzles
- 🕰️ Relaxing and calming gameplay experience

**What reviewers complain about**

- 💰 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

**Reported bugs**

- Daily puzzles not loading or resetting incorrectly
- User-created puzzles not saving or syncing properly
- App freezing or crashing on certain devices

**Requested features**

- Earn free hints through gameplay achievements
- Option to undo moves or restart puzzles
- Improved puzzle search and discovery
- Colorblind accessibility features


### ⊷ ONE LINE

[App page](https://appshunter.io/ios/app/one-line/id1389762864)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |
| Remove Ads Bundle 2 | $3.99 | one-time |
| Remove Ads Bundle 3 | $5.99 | one-time |
| Remove Ads Bundle 4 | $9.99 | one-time |
| Remove Ads Bundle 5 | $19.99 | one-time |

**What reviewers like**

- 👍 Fun and relaxing gameplay
- 🎵 Calming music
- 💰 One-time fee for ad-free experience
- 🧠 Smart puzzle design
- ✨ Beautifully made game

**What reviewers complain about**

-  anúncios Insane ads
- 🤔 Puzzles can be too easy
- 😵 Confusing IQ score
- 💸 Ads have sound even when muted

**Reported bugs**

- Line freezes during drawing
- Phantom line glitches on screen
- App requires force restart

**Requested features**

- Make puzzles more challenging
- Clarify or change the IQ score to a game rating
- Improve line thickness consistency


## Frequently asked questions

### Is KAMI 2 free?

KAMI 2 is free to download, with in-app purchases available.

### Is ⊷ ONE LINE free?

⊷ ONE LINE is free to download, with in-app purchases available.

### Which has better reviews, KAMI 2 or ⊷ ONE LINE?

KAMI 2 and ⊷ ONE LINE are both rated 4.7 out of 5 on the App Store, from 15K and 328 ratings respectively.

### Do KAMI 2 or ⊷ ONE LINE have ads?

KAMI 2 shows ads; ⊷ ONE LINE does not.

### Which is updated more often, KAMI 2 or ⊷ ONE LINE?

KAMI 2 ships an update every 2 months, and ⊷ ONE LINE every 6 months. Most recently, KAMI 2 was updated on October 18, 2026 and ⊷ ONE LINE on October 17, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*