# Puzzle Game - iSudoku — Smart Hints & Daily Challenges

> Smart Hints & Daily Challenges (iPhone/iPad app by Babak Shirvani.)

- Source: https://appshunter.io/ios/app/puzzle-game-isudoku/id6758756789 (this page in markdown: same URL + `.md`)
- Developer: [Babak Shirvani](https://appshunter.io/developer/1816520297)
- Category: Games, Entertainment, Puzzle, Word
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 13 MB
- Languages: Persian, Vietnamese, American English, Arabic, Dutch, Hebrew, Indonesian, European Spanish, Italian, Korean and 10 more
- Released: 2026-02-13
- Data updated: 2026-09-03
- User reviews in markdown: https://appshunter.io/ios/app/puzzle-game-isudoku/id6758756789/reviews.md

## What is Puzzle Game?

TRAIN YOUR BRAIN WITH THE #1 SUDOKU EXPERIENCE

iSudoku is the ultimate Sudoku puzzle game designed for beginners and experts alike. Whether you have 2 minutes or 2 hours, enjoy beautifully crafted puzzles with smart features that help you improve.

SMART HINTS SYSTEM
Not just a "reveal the answer" button. iSudoku teaches you HOW to solve. Our intelligent hint engine analyzes the board and explains techniques like Naked Pairs, Hidden Singles, X-Wing, Swordfish, and more. Learn real Sudoku strategies while you play.

DAILY CHALLENGES
A fresh puzzle every day. Complete daily challenges to build your streak and earn trophies. Track your progress over time with detailed statistics.

PUZZLE DIFFICULTY FOR EVERYONE
• Easy — Perfect for beginners learning the basics
• Medium — A balanced challenge for casual players
• Hard — Test your skills with advanced techniques
• Expert — The ultimate brain challenge for Sudoku masters

TRACK YOUR PROGRESS
Detailed statistics show your win rate, best times, current streak, and solving technique mastery. Watch yourself improve over time.

CELEBRATE YOUR WINS
Earn trophies and achievements for milestones like first win, speed records, streak milestones, and technique mastery. Every puzzle solved is a victory worth celebrating.

BEAUTIFUL THEMES
Customize your experience with multiple color themes. Dark mode, light mode, and vibrant options — play the way you like.

KEY FEATURES
• 100% offline — play anywhere, no internet required
• Smart hints that teach solving techniques
• Daily challenges with streak tracking
• Multiple difficulty levels (Easy to Expert)
• Detailed statistics and progress tracking
• Trophy and achievement system
• Beautiful, customizable themes
• Intuitive, clean interface
• Unlimited puzzles — never run out

DOWNLOAD iSUDOKU TODAY
Start your 3-day free trial. Unlock all features with Pro — weekly, yearly, or lifetime.

SUBSCRIPTIONS
• Pro Weekly
• Pro Yearly (3-day free trial)
• Pro Lifetime (one-time purchase)

Payment is charged to your Apple ID account at confirmation of purchase. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours before the end of the current period. You can manage and cancel subscriptions in your Account Settings on the App Store after purchase.

Privacy Policy: https://isudoku.iappclub.com/privacy/
Terms of Use: https://isudoku.iappclub.com/terms/
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Yearly Premium | $9.99 | per year |
| Weekly Premium | $1.99 | per 7 days |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Premium | $19.99 | one-time |



## Version history (last 3 releases)

### 1.2.0 — 2026-08-31

NEW WAYS TO PLAY
• Auto-Notes: fill every cell's pencil marks with one tap
• Number-first entry: pick a number, then tap cells to place it fast
• Digit counters show how many of each number remain
• Pause button: take a break anytime — the timer waits

IMPROVEMENTS
• Puzzles now generate in the background — no more freezing on Expert
• Fixed mistake limits in all languages, trophy unlocks, and saving when you leave the app
• General polish and stability improvements

Thank you for playing! Your feedback keeps iSudoku improving.

### 1.1.0 — 2026-05-29

• 20 languages fully supported — play in your language
• Smart hint engine with technique explanations
• Daily challenges with streak tracking
• New trophy and achievement system
• Improved onboarding experience
• Beautiful theme customizations
• Performance improvements and bug fixes

Thank you for playing iSudoku! We'd love your feedback.

### 1.0 — 2026-02-13

No release notes.

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## More apps by Babak Shirvani

- [Budget Tracker - iExpenses](https://appshunter.io/ios/app/budget-tracker-iexpenses/id6746374958)
- [AI Grammar Keyboard - iGrammar](https://appshunter.io/ios/app/ai-grammar-keyboard-igrammar/id6759273099)
- [iTimer - HIIT & Interval Timer](https://appshunter.io/ios/app/itimer-hiit-and-interval-timer/id6762029019)

All apps by Babak Shirvani: https://appshunter.io/developer/1816520297

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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 2026-09-03.*