# Dottos vs Nonograms Katana

The clearest difference is in-app purchases: Dottos at none against Nonograms Katana's 3. Nonograms Katana's advantage is update cadence (every 3 months vs every 77 months) and ratings volume (6.8K vs 2). On price, rating, ads and device support there is nothing between them.

Both are free to download. Nonograms Katana sells 3 one-off in-app purchases. Dottos asks for nothing beyond the download.

Dottos holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Nonograms Katana has 6.8K ratings behind it against 2, so its average is the more settled of the two.

Dottos ships an update every 77 months, Nonograms Katana every 3 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Dottos | Nonograms Katana |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/dottos/id788761710/reviews)** | [4.8 (6.8K ratings)](https://appshunter.io/ios/app/nonograms-katana/id1037710023/reviews) |
| Number of ratings | 2 | **6.8K** |
| Positive reviews | — | 82.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 77 months | **Every 3 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 62 MB | 27 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Marek Moscichowski](https://appshunter.io/developer/705355407) | [Ucdevs Interaction DOO](https://appshunter.io/developer/1037710022) |

## What reviewers say

### Dottos

[App page](https://appshunter.io/ios/app/dottos/id788761710)

A simple and fun game where players match five dots of the same color. Compete with others by submitting your score to the Game Center.

**Highlights:** Match 5 dots, Vertical, horizontal, diagonal matches, Score submission, Game Center integration, Leaderboards

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

**In-app purchases:** none


### Nonograms Katana

[App page](https://appshunter.io/ios/app/nonograms-katana/id1037710023)

Engage in logic puzzles where you fill cells based on numerical clues to reveal hidden pictures. This app offers a vast collection of puzzles, tools for marking cells, and options to create and share your own challenges.

**Highlights:** 1001 nonogram puzzles, Create and share custom puzzles, Black-and-white and colored puzzles, Puzzles sorted by size, Hints and undo/redo functionality, Cloud save and achievements

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 80 Hints | $0.99 | one-time |
| 200 Hints | $1.99 | one-time |
| VIP version | $5.99 | one-time |

**What reviewers like**

- 👍 Lots of puzzles
- 👍 Customizable settings
- 👍 Minimal ads
- 👍 Challenging puzzles
- 👍 User-created puzzles

**What reviewers complain about**

- 🐛 Occasional crashes
- 🐛 Puzzle progress loss
- 🐛 Ads not working
- 🐛 Freezing issues
- 🐛 Compatibility problems

**Reported bugs**

- Puzzle progress not saving
- Puzzle images not loading
- Freezing/crashing on larger puzzles
- Ads not playing properly
- Compatibility issues with newer iOS versions

**Requested features**

- Dark mode option
- Ability to rearrange/move puzzle pieces
- Difficulty ratings for puzzles
- Automatic line/row completion
- Ability to follow/subscribe to users


## Frequently asked questions

### Is Dottos free?

Dottos is free to download, with no in-app purchases.

### Is Nonograms Katana free?

Nonograms Katana is free to download, with in-app purchases available.

### Which has better reviews, Dottos or Nonograms Katana?

Dottos is rated higher. Dottos averages 5.0 out of 5 from 2 ratings, while Nonograms Katana averages 4.8 from 6.8K ratings.

### Do Dottos or Nonograms Katana have ads?

Neither Dottos nor Nonograms Katana shows ads.

### Which is updated more often, Dottos or Nonograms Katana?

Dottos ships an update every 77 months, and Nonograms Katana every 3 months. Most recently, Dottos was updated on November 1, 2026 and Nonograms Katana on November 2, 2026.

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