# Sudoku 20,000+ — Challenging Sudoku for Seniors

> Classic Sudoku puzzles with multiple difficulty levels and daily challenges. (iPhone/iPad app by ryo fujise.)

- Source: https://appshunter.io/ios/app/sudoku-20000-plus/id1586579028 (this page in markdown: same URL + `.md`)
- Developer: [ryo fujise](https://appshunter.io/developer/1580661605)
- Category: Games, Casual, Puzzle
- Price: Free with in-app purchases
- Rating: 4.90/5 from 8 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 61 MB
- Languages: British English, Afrikaans, Albanian, Amharic, Arabic, Armenian, Azerbaijani, Basque, Belarusian, Bangla and 62 more
- Released: 2021-10-02
- Data updated: 2026-08-30
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/sudoku-20000-plus/id1586579028/reviews.md

## What is Sudoku 20,000+?

Challenge your brain with Sudoku!  
"Nanpure" is a classic Sudoku app designed for puzzle lovers and seniors who enjoy training their minds. With over 20,000 puzzles, from easy levels to extremely hard challenges, this app is perfect for both casual play and serious brain workouts.

◆ Features
・Over 20,000 Sudoku puzzles to enjoy
・7 difficulty levels: from beginner-friendly to expert-level challenges
・Daily Challenge: a new puzzle every day
・Note & Auto-Note functions to help you play comfortably
・Hint system when you get stuck
・Undo function for stress-free solving
・Subscription option to remove ads

◆ Recommended for
・Seniors who want to keep their minds sharp
・Puzzle fans who love solving difficult Sudoku
・Players looking for real brain training and logical thinking practice
・Anyone who wants a relaxing way to focus and refresh
・Advanced users seeking “impossible” Sudoku challenges

◆ How to play
Fill the 9x9 grid with numbers 1–9, making sure no duplicates appear in the same row, column, or block. Start with an easy puzzle, then climb your way up to extreme expert-level Sudoku. Use hints and notes whenever needed.

◆ Brain Training & Relaxation
Sudoku is not only fun—it’s also great for memory, concentration, and preventing cognitive decline. Seniors and puzzle lovers alike can enjoy sharpening their logic skills while relaxing at the same time.

Download “Nanpure” now and put your brain to the ultimate test!

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About in-app subscriptions

- What you can do with an in-app subscription
You can remove ads in the app.
$ $3.49 / month

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Price may vary by location. Subscriptions will be charged to your credit card through your iTunes account. Your subscription will automatically renew unless canceled at least 24 hours before the end of the current period. You will not be able to cancel the subscription once activated. After purchase, manage your subscriptions in App Store Account Settings. Any unused portion of a free trial period, will be forfeited when the user purchases a subscription.

---

privacy policy: https://zero2one-mys.github.io/sudoku/privacy-policy/
Terms & Conditions: https://zero2one-mys.github.io/sudoku/terms-and-conditions/

## Key features

- Over 20,000 Sudoku puzzles
- 7 difficulty levels
- Daily Challenge
- Note & Auto-Note functions
- Hint system
- Undo function

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Remove in-app advertisements. | $3.49 | per month |


## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/sudoku-20000-plus/id1586579028/reviews.md

### 1/5 — 複数回となるものが多すぎる

*2026-01-24*

結局最後にどちらかを仮置きして埋めるパターンにして難しいと思わせてるだけ。

### 1/5 — 見ずらい

*2024-05-23*

操作性は悪くない
色のせいか見づらくてムズかしかったきがします

### 5/5 — 毎日やってます！

*2022-02-07*

ちょっと時間があるとやっちゃいます。
デイリーチャレンジもあるので、毎日やります。
難しい時はヒントを見ながらもできるので、イライラもありません。

## Frequently asked questions about Sudoku 20,000+

### What is Sudoku 20,000+?

Sudoku 20,000+ is a classic Sudoku app offering over 20,000 puzzles with 7 difficulty levels. It's designed for brain training and relaxation, suitable for seniors and puzzle enthusiasts.

### Does Sudoku 20,000+ have ads?

Yes, Sudoku 20,000+ contains advertisements. Users can remove these ads through a monthly subscription.

### How much does the Sudoku 20,000+ subscription cost?

The subscription to remove ads in Sudoku 20,000+ costs $3.49 per month. Prices may vary by location.

### Can I play Sudoku 20,000+ offline?

The description does not explicitly state offline play capabilities. However, Sudoku puzzles are typically playable offline once downloaded.

### What are the difficulty levels in Sudoku 20,000+?

Sudoku 20,000+ features 7 difficulty levels, ranging from beginner-friendly to expert-level challenges, including 'impossible' puzzles for advanced users.

### How often is there a new puzzle in Sudoku 20,000+?

Sudoku 20,000+ offers a new puzzle every day through its 'Daily Challenge' feature.

### What age rating does Sudoku 20,000+ have?

Sudoku 20,000+ has an age rating of 4+, making it suitable for a wide range of players.

### What devices support Sudoku 20,000+?

Sudoku 20,000+ is supported on iPhone, iPad, and iPod devices.

## Version history (last 5 releases)

### 1.1.6 — 2026-02-02

Thank you for using the app. We have made improvements and bug fixes.

### 1.1.2 — 2025-09-20

Thank you for using the app. We have made improvements and bug fixes.

### 1.1.1 — 2025-06-03

Thank you for using the app. We have made improvements and bug fixes.

### 1.0.92 — 2025-04-03

Thank you for using the app. We have made improvements and bug fixes.

### 1.0.90 — 2025-01-04

Thank you for using the app. We have made improvements and bug fixes.

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## More apps by ryo fujise

- [Brain training game/Tap Number](https://appshunter.io/ios/app/brain-training-gametap-number/id1580661603)
- [News Typing Japanese](https://appshunter.io/ios/app/news-typing-japanese/id1586572554)
- [Tiles all black:Brain training](https://appshunter.io/ios/app/tiles-all-blackbrain-training/id1588740823)
- [Microwave Time Calc](https://appshunter.io/ios/app/microwave-time-calc/id1596577727)
- [Ehomaki Compass & Omikuji](https://appshunter.io/ios/app/ehomaki-compass-and-omikuji/id1597235972)

All apps by ryo fujise: https://appshunter.io/developer/1580661605

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-30.*