# Sudoku Nines — Brain Training Number Puzzle

> Brain Training Number Puzzle (iPhone/iPad app by Nir Hayun.)

- Source: https://appshunter.io/ios/app/sudoku-nines/id6761325291 (this page in markdown: same URL + `.md`)
- Developer: [Nir Hayun](https://appshunter.io/developer/1350123259)
- Category: Games, Entertainment, Board, Puzzle
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 22 MB
- Languages: American English, Arabic, Danish, Dutch, French (France), German (Germany), Hebrew, Hindi, Indonesian, Italian and 13 more
- Released: 2026-04-07
- Data updated: 2026-05-29
- User reviews in markdown: https://appshunter.io/ios/app/sudoku-nines/id6761325291/reviews.md

## What is Sudoku Nines?

Sudoku Nines: the clean, elegant Sudoku experience — now on iPhone and iPad. Challenge yourself with thousands of handcrafted puzzles across four difficulty levels: Easy, Medium, Hard, and Expert.

Features: 
• Smart notes and pencil mode 
• Lifeline system: reveal cells, check your board, or solve a row 
• Prize wheel with daily spins and rewards 
• 40 unique badges to earn 
• Game Center leaderboards and achievements 
• Beautiful minimalist design with dark mode support 
• Optimized for iPad with adaptive layouts

Play at your own pace. Save and resume anytime.


## Version history (last 4 releases)

### 1.0.3 — 2026-04-23

Sudoku Nines 1.0.3 now speaks your language.

New: In-app language picker: switch between 13 languages (English, Spanish, Portuguese, French, German, Italian, Japanese, Korean, Russian, Turkish, Simplified Chinese, Hindi, Arabic, and Hebrew) without changing your device settings. Find it in Settings → Language.
Full localization polish: every menu, button, tip, and daily reminder notification now reads naturally in your chosen language, including right-to-left layouts for Arabic and Hebrew.
Smoother Game Center sign-in: a friendlier, user-initiated flow with a clear fallback alert if iOS blocks the prompt. Your streaks and achievements sync more reliably.
More reliable ads on launch: added smart retry logic so the app-open experience no longer stalls on a slow network. Rewarded lifeline ads also recover gracefully from load failures.
Performance & stability: faster cold starts, reduced memory use in long sessions, and assorted crash fixes reported in 1.0.1.

Thanks for playing! Leaving a quick rating or review helps us reach more puzzle fans. Got feedback? Tap Settings → Contact Us — we read every message.

### 1.0.2 — 2026-04-12

Smarter Ads, Fairer Scores, and Better Notifications

Fairer scoring: Assist features like candidate hints and error highlighting are now tracked per game session. Your final score accurately reflects what you actually used during that puzzle, even if you toggled settings mid-game.
Less intrusive ads: Improved ad pacing with cooldown periods and fatigue-aware suppression. App open ads, interstitials, and rewarded ads are now shown more thoughtfully so they don't interrupt your flow.
Notification deep links: Tap a Prize Wheel notification and go straight to the wheel, no more navigating through menus.
Bug fixes and stability improvements.

### 1.0.1 — 2026-04-09

Now in 13 languages! Switch the app's language right from Settings — no need to change your device language. We also improved Game Center sign-in, refined scoring for Hard & Expert puzzles, and polished the experience throughout.

In-app language picker: play in English, Hebrew, Arabic, Spanish, French, German, Japanese, Korean, Russian, Turkish, Portuguese, Hindi, or Chinese
Game Center is now always accessible from the main menu, tap the trophy to sign in or view leaderboards
Scoring fix: candidates penalty no longer applies on Hard & Expert where candidates are disabled
Difficulty badges now appear on in-progress puzzle cards
Notifications are cleared when you open the app
Localization and accessibility improvements across the board

### 1.0 — 2026-04-07

No release notes.

## More apps by Nir Hayun

- [Emoji-Math](https://appshunter.io/ios/app/emoji-math/id1350123260)

All apps by Nir Hayun: https://appshunter.io/developer/1350123259

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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 2026-05-29.*