# ナンプレ難問集 ~定番のナンプレアプリ~ vs Sudoku Tutor

The clearest difference is ads: ナンプレ難問集 ~定番のナンプレアプリ~ at none against Sudoku Tutor's shown. ナンプレ難問集 ~定番のナンプレアプリ~ also leads on iOS requirement (8.0 vs 17.6). Sudoku Tutor's advantage is update cadence (every 3 weeks vs every 37 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ナンプレ難問集 ~定番のナンプレアプリ~ ships an update every 37 months, Sudoku Tutor every 3 weeks. The most recent releases landed on October 13, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ナンプレ難問集 ~定番のナンプレアプリ~ | Sudoku Tutor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id1089515660/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 14.3% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 37 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 7 MB | 13 MB |
| Requires iOS | **8.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ikue Konno](https://appshunter.io/developer/971968281) | [Kenichi Nakagawa](https://appshunter.io/developer/1831663034) |

## What reviewers say

### ナンプレ難問集 ~定番のナンプレアプリ~

[App page](https://appshunter.io/ios/app/id1089515660)

A classic number puzzle game offering a simple and stylish interface with over 100 free puzzles. Features include auto-save, coloring for error identification, and a new 'clear all' function for easy input correction.

**Highlights:** Over 100 free puzzles, Auto-save function, Coloring for error highlighting, Simple and stylish design, Clear all input function

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

**In-app purchases:** none


### Sudoku Tutor

[App page](https://appshunter.io/ios/app/sudoku-tutor-camera-solver/id6755796331)

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

**In-app purchases:** none


## Frequently asked questions

### Is ナンプレ難問集 ~定番のナンプレアプリ~ free?

ナンプレ難問集 ~定番のナンプレアプリ~ is free to download, with no in-app purchases.

### Is Sudoku Tutor free?

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

### Do ナンプレ難問集 ~定番のナンプレアプリ~ or Sudoku Tutor have ads?

Sudoku Tutor shows ads; ナンプレ難問集 ~定番のナンプレアプリ~ does not.

### Which is updated more often, ナンプレ難問集 ~定番のナンプレアプリ~ or Sudoku Tutor?

ナンプレ難問集 ~定番のナンプレアプリ~ ships an update every 37 months, and Sudoku Tutor every 3 weeks. Most recently, ナンプレ難問集 ~定番のナンプレアプリ~ was updated on October 13, 2026 and Sudoku Tutor on October 25, 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.*